Service parts for the 20RES
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredOil system
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | natural gas or LPG |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 20 kW |
| Standby kVA | 21 |
| Prime power | 15 kW |
| Emissions | EPA |
| Controller | DC, DC2, RDC, RDC Residential Digital, RDC Residential Digital; DC Digital, RDC2 |
| Oil capacity | 1.9 L |
| Alternator | 2F7 (2-pole, Class Class H insulation) |
| Voltage options | 120/240 V |
| Phase | 1 |
| Rated current | 83 A |
| Power factor | 1.0 |
| Circuit breaker | 100 A |
| Battery group | 51 |
| Battery cranking | 500 CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Starting system | 12 V DC |
| Coolant capacity | 2.5 L |
| Max ambient | -30 °C |
| Dimensions (L×W×H) | 48×26×29 mm |
| Dry weight | 243 kg |
| Wet weight | 263 kg |
| Sound level | 69.0 dBA @ 23 ft m |
| Fuel tank | 15.0 L |
| Tank runtime | 8 hr |
Engine
| Oil capacity | 1.9 L |
|---|---|
| Coolant capacity | 2.5 L |
| Displacement | 0.999 L |
| Aspiration | air-cooled |
| Rated speed | 3600 rpm |
Maintenance & consumables
for the Kohler CH1000| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Element, air filter | 62 083 04-S | buy | ||
| Fuel filter | — | 200 hr | |||
| Oil filter | Filter, oil | ×1 | 52 050 02-S | 200 hr | Amazon |
| Battery | Ground Negative 12V (DC) | — | 200 hr | ||
| Belt | — | 200 hr | |||
| Coolant | 2.5 L | — | 200 hr | ||
| Coolant filter | — | 150 hr | |||
| Oil | 500.0 L | — | 200 hr | ||
| Spark plug | — | 300 hr |
Service intervals
40| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Oil level | Check | 8 hr | Before each use or every 8 hours for extended operation | |
| Oil (14 kW) | Change | 100 hr | 12 mo | |
| Air cleaner | Clean | 150 hr | 12 mo | Yearly or 150 hours; service more often in dusty conditions |
| Air cleaner service | Clean | 150 hr | 12 mo | 14 kW: 150/300 hours; 20 kW: 150/300 hours yearly |
| Change oil | Change | 150 hr | 12 mo | 20 kW models |
| Engine oil | Change | 150 hr | 12 mo | Yearly or 150 hours |
| Oil (20 kW) | Change | 150 hr | 12 mo | |
| Oil cooler | Clean | 150 hr | 12 mo | 20 kW models |
| Oil cooler | Inspect | 150 hr | 12 mo | 20 kW models |
| Oil cooler (20RESB only) | Clean | 150 hr | 12 mo | 20RESB only; yearly or 150 hours |
| Oil filter | Replace | 200 hr | 12 mo | Yearly or 150 hours |
| Oil filter (20 kW) | Replace | 150 hr | 12 mo | |
| Replace filter | Replace | 200 hr | 12 mo | 20 kW models |
| Spark plugs | Check | 150 hr | 12 mo | Yearly or 150 hours; reset gap or replace as necessary |
| Oil filter (14 kW) | Replace | 200 hr | 12 mo | |
| Air cleaner | Replace | 300 hr | 12 mo | Yearly or 300 hours; replace paper element |
| Air cleaner service | Replace | 300 hr | 14 kW models | |
| Brushes and collector ring | Inspect | 300 hr | 12 mo | Yearly or 300 hours; authorized distributor/dealer only |
| Generator brushes and collector ring | Replace | 300 hr | 12 mo | Authorized distributor only |
| Spark plugs | Replace | 300 hr | 12 mo | Yearly or 300 hours |
| Crankcase breather hose | Check | 500 hr | 12 mo | 14 kW models |
| Crankcase breather hose | Inspect | 500 hr | 12 mo | Yearly or 500 hours |
| Replace stepper motor coupling and bushing | Replace | 500 hr | 14 kW models; authorized distributor/dealer only | |
| Stepper motor coupling and bushing | Replace | 500 hr | Authorized distributor/dealer only | |
| Wire-cable insulation condition | Inspect | 500 hr | 36 mo | 3 years or 500 hours |
| Air ducts and louvers | Clean | 12 mo | ||
| Air ducts, louvers | Clean | 12 mo | Yearly | |
| Air ducts, louvers | Inspect | 12 mo | 14 kW models | |
| Battery | Check | 1 mo | Check charger operation, charge rate | |
| Battery and rack corrosion | Clean | 12 mo | Yearly; remove corrosion, clean and dry | |
| Battery charger operation, charge rate | Check | 1 mo | Monthly | |
| Battery electrolyte level and specific gravity | Check | 12 mo | Yearly; not necessary for maintenance-free batteries | |
| Battery terminals and boots | Clean | 12 mo | Yearly; clean and tighten terminals, inspect boots | |
| Check battery charger operation, charge rate | Check | 1 mo | 14 kW models | |
| Clean and tighten battery terminals and inspect boots | Clean | 12 mo | 14 kW models; inspect boots | |
| Control and power wiring connections | Other | 12 mo | Yearly; tighten connections | |
| Exhaust system insulation and fire hazards | Inspect | 12 mo | Yearly | |
| Flexible fuel lines and connections | Inspect | 3 mo | Quarterly; replace as necessary | |
| Flexible lines and connections | Inspect | 3 mo | 14 kW models; replace as necessary | |
| Fuel flexible lines and connections | Inspect | 3 mo | Quarterly; replace as necessary |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Service specifications
60| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Gap | Spark plug | 0.03 | in. | |
| Gap | Spark plug | 0.76 | mm | |
| Gap | Spark plug gap | 0.51 | mm (0.02 in.) | |
| Gap | Spark plug gap | 0.7--0.8 | mm (0.028--0.030 in.) | |
| Gap | Spark plug gap | 0.76 | mm (0.030 in.) | |
| Gap | Spark plug gap | 0.8--0.9 | mm (0.03--0.04 in.) | |
| Gap | Spark plug gap | 0.89 | mm (0.035 in.) | |
| Gap | Spark plug gap | 0.9--1.0 | mm (0.036--0.04 in.) | |
| Other | Battery cell specific gravity difference | 0.01 | max difference | |
| Other | Battery charge threshold | 1.215 | specific gravity | below this at 80°F (26.7°C), charge battery |
| Other | Battery specific gravity | 1.260 | specific gravity | fully charged at 80°F (26.7°C) |
| Other | Battery specific gravity, fully charged | 1.260 | specific gravity | at 80°F (26.7°C) |
| Other | Battery specific gravity, needs charging | below 1.215 | specific gravity | at 80°F (26.7°C) |
| Other | Battery wrap length | 1067 (42) | mm (in.) | |
| Other | Battery wrap length | 864 (34) | mm (in.) | |
| Other | Heater wrap rating | 50 | Watts | |
| Other | Heater wrap rating | 65 | Watts | |
| Other | Maximum fuel flow rate, 14RES/RESL LP vapor | 203000 | Btu/hr | |
| Other | Maximum fuel flow rate, 14RES/RESL natural gas | 193000 | Btu/hr | |
| Other | Maximum fuel flow rate, 20RES/RESL LP vapor | 340000 | Btu/hr | |
| Other | Maximum fuel flow rate, 20RES/RESL natural gas | 281000 | Btu/hr | |
| Other | Plug cord length | 75 (3) | mm (in.) | |
| Other | Power cord length | 1677 (66) | mm (in.) | |
| Other | Power cord length | 1830 (72) | mm (in.) | |
| Other | Power cord length | 483 (19) | mm (in.) | |
| Pressure | Fuel supply pressure, LP vapor | 1.7--2.7 | kPa (7--11 in. H2O) | |
| Pressure | Fuel supply pressure, natural gas | 1.3--2.7 | kPa (5--11 in. H2O) | |
| Pressure | Gas fuel leak test pressure | 6-8 | ounces per square inch | 10-14 inches water column |
| Speed | Engine governor speed setting 4P=00, 50 Hz | 2850 | rpm | 4P setting 00 |
| Speed | Engine governor speed setting 4P=00, 60 Hz | 3420 | rpm | 4P setting 00 |
| Speed | Engine governor speed setting 4P=50, 50 Hz | 3000 | rpm | 4P setting 50 |
| Speed | Engine governor speed setting 4P=50, 60 Hz | 3600 | rpm | 4P setting 50 |
| Speed | Engine governor speed setting 4P=99, 50 Hz | 3150 | rpm | 4P setting 99 |
| Speed | Engine governor speed setting 4P=99, 60 Hz | 3776 | rpm | 4P setting 99 |
| Speed | Engine speed | 3600 | RPM | |
| Temperature | Battery heater thermostat OFF | 27 | °C | 80°F |
| Temperature | Battery heater thermostat ON | 16-18 | °C | 60-65°F |
| Temperature | Breather tube heater thermostat OFF | 13 | °C | 55°F |
| Temperature | Breather tube heater thermostat ON | 4 | °C | 40°F |
| Temperature | Carburetor heater thermostat OFF | 16 ± 3 | C (60 ± 5F) | |
| Temperature | Carburetor heater thermostat OFF | 16 ±3 | °C | 14 kW models; 60 ±5°F |
| Temperature | Carburetor heater thermostat ON | 4 ± 4 | C (40 ± 7F) | |
| Temperature | Carburetor heater thermostat ON | 4 ±3 | °C | 14 kW models; 40 ±5°F |
| Temperature | Carburetor heater thermostat ON | 4 ±4 | °C | 20 kW models; 40 ±7°F |
| Temperature | Exhaust gas exiting enclosure at rated kW | 260 | °C (500 °F) | at rated kW |
| Temperature | Exhaust temperature | 260 | C | at rated kW |
| Temperature | Fuel regulator heater thermostat | 4/13 | °C | 20 kW models; 40/55°F snap action |
| Temperature | Oil heater thermostat OFF | 13 | °C | 55°F |
| Temperature | Oil heater thermostat ON | 4 | °C | 40°F |
| Temperature | Thermostat OFF | 16 ± 3 | °C | Thermostat OFF (60 ± 5°F) |
| Temperature | Thermostat ON | 4 ± 4 | °C | Thermostat ON (40 ± 7°F) |
| Temperature | Thermostat off temperature | 27 | C (80 F) | |
| Temperature | Thermostat on temperature | 16 | C (60 F) | |
| Torque | Spark plug | 18 | ft. lb. | |
| Torque | Spark plug | 22 | ft. lb. | |
| Torque | Spark plug | 24.4 | Nm | |
| Torque | Spark plug | 24.4--29.8 | Nm (18--22 ft. lb.) | |
| Torque | Spark plug | 24.4-29.8 | Nm | 14 and 20 kW models; also 18-22 ft. lb. |
| Torque | Spark plug | 29.8 | Nm | |
| Torque | Spark plug torque | 15 | Nm (11 ft. lb.) |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|---|---|---|---|---|
| Engine oil | 5W-30 or 10W-30 | API Service Class SG, SH, or SJ synthetic | 1.9 L | 20RESB/D; capacity may be less due to residual oil; fill to F mark on dipstick | |
| Engine oil | Synthetic | API Service Class SG or higher | Use recommended viscosity and grade; fill if necessary. | ||
| Fuel | Natural gas or propane | Certified for emergency standby use only | |||
| Fuel | LP vapor | 93 MJ/m3 (2500 Btu/ft3) | Fuel supply pressure 1.7--2.7 kPa (7--11 in. H2O). Max flow 14RES/RESL 203,000 Btu/hr; 20RES/RESL 340,000 Btu/hr. | ||
| Fuel | Natural Gas or LPG | Natural gas: 90% min methane. LPG: 85% min propane. Fuel supply pressure: Natural gas 0.9-2.7 kPa, LPG 1.7-2.7 kPa | |||
| Fuel | Natural gas | 37 MJ/m3 (1000 Btu/ft3) | Fuel supply pressure 1.3--2.7 kPa (5--11 in. H2O). Max flow 14RES/RESL 193,000 Btu/hr; 20RES/RESL 281,000 Btu/hr. | ||
| Fuel | Natural gas or LPG | Certified for emergency standby use only; field-convertible multi-fuel |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Fault codes
29| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| AC Sens Loss | AC Sensing Lost | In Auto mode, generator output AC sensing is lost. Detection begins 10 seconds after crank disconnect. | Warning | Contact authorized distributor/dealer for service |
| Accy PwrOver | Accessory Power Overload | An over current fault (short circuit) on the accessory controller power output | Warning | Contact authorized distributor/dealer for service |
| Advanced Diagnostic | Advanced Diagnostic Active | Shutdown during reduced-speed portion of exercise; engine restarts, runs at full speed for 2 minutes, then stops and returns to AUTO. | Shutdown | If generator set does not restart and return to AUTO, check for other faults. |
| ATS ComError | ATS Communication Error | Warning is displayed if ATS interface connection is lost | Warning | Check communication wiring between transfer switch interface board and generator set |
| ATS PhaseRot | ATS Phase Rotation Mismatch | Transfer switch phase rotation does not match; ATS will not transfer | Warning | Correct the ATS connection per ATS Installation manual and labels |
| Aux Input | Auxiliary Input | Optional customer-connected input is closed (digital input from optional PIM). | Shutdown | Check customer-supplied equipment. |
| Batt Chg Flt | Battery Charger Fault | Input to PIM from external battery charger (not built-in charger). | Warning | Check external battery charger. |
| Battery CrLo | Battery Crank Low | Engine starting battery voltage falls below 11 VDC for more than 10 seconds | Warning | Clears when battery voltage returns to acceptable level |
| Battery High | Battery High | Engine starting battery voltage rises above 16 VDC for more than 10 seconds; inhibited during crank. | Warning | Check battery rating and condition; check battery charger operation. |
| Battery Low | Battery Low | Engine starting battery voltage falls below 12.5 VDC for more than 90 seconds when engine not running; not operative during crank. | Warning | Check battery rating and condition; check charger; charge or replace battery. |
| Battery Voltage Low | Battery voltage low | Engine starting battery voltage falls below 12.5 VDC for more than 90 seconds when engine is not running. | Warning | Check battery rating and condition; check battery charger; charge or replace battery. |
| Eng Speed High | Engine Speed High | Engine speed exceeds 115% of normal running speed for more than 0.3 seconds. | Shutdown | Contact authorized distributor/dealer. |
| Eng Speed Low | Engine Speed Low | Engine speed drops below 85% of normal running speed for more than 3 seconds. | Shutdown | Reduce load; check enclosure thermostat and reset if tripped; contact dealer. |
| Exer Not Sch | Exercise Not Scheduled | No exercise is scheduled on controller. | Warning | Set the exerciser. |
| Frequency High | Frequency High | Governed frequency exceeds 110% of system frequency setpoint for more than 10 seconds; active 10 seconds after start. | Shutdown | Contact authorized distributor/dealer. |
| Frequency Low | Frequency Low | Governed frequency falls below 90% of system frequency for more than 10 seconds, or 1 Hz below setpoint for more than 60 seconds; active 10 seconds after start. | Shutdown | Reduce load and restart; check enclosure thermostat and reset if tripped; contact dealer. |
| Lo Crank Vlt | Low Cranking Voltage | Battery voltage falls below 8 VDC for more than 6 seconds while starter is engaged. | Warning | Charge or replace battery. |
| Locked Rotor | Locked Rotor | No engine rotation sensed during cranking; shuts down 3 seconds after fault detected. | Shutdown | Check battery and loose connections; contact dealer. |
| Low Coolant Level | Low coolant level | Battery voltage supply issue; may also be triggered by low battery voltage on air-cooled models. | Warning | Verify utility power to TB1; check battery connections and condition. |
| MainPwrOverL | Main Power Overload | Overcurrent fault on 70 controller power output (short circuit). | Shutdown | Check for shorted run relay and wiring short circuits; contact dealer. |
| NoEC | No engine configuration setting | Controller configuration is not set. | Warning | Set engine configuration (Ec) to match generator set engine type. |
| Not in Auto | Not in Auto | Generator set is not in Automatic standby mode; remote start/stop commands ignored. | Warning | Press AUTO to place in Automatic mode when appropriate. |
| Oil Pres Low | Low Oil Pressure | LOP switch indicates low oil pressure for more than 5 seconds; active 30 seconds after crank disconnect. | Shutdown | Check lubrication system leaks and oil level; add oil if low. |
| Oil Press Low | Low oil pressure | LOP switch indicates low oil pressure for more than 5 seconds; active 30 seconds after crank disconnect. | Shutdown | Check for leaks; check oil level and add oil; check oil pressure switch and wiring. |
| Over Crank | Overcrank | Three unsuccessful starting attempts. | Shutdown | Check fuel supply, spark plug, and battery; check loose connections; contact dealer. |
| Spd Sens Flt | Speed Sensor Fault | Engine speed sensor failed or engine stalled. | Shutdown | Contact authorized distributor/dealer. |
| Uu---- | Voltage and frequency not set | Controller displays Uu---- if voltage and frequency are not set to a standard combination. | Warning | Set system voltage and frequency parameter (Uu) to a standard combination. |
| Volts L1-L2 High | Generator Voltage High | Output voltage exceeds 120% of system nominal voltage for more than 2 seconds. | Shutdown | Contact authorized distributor/dealer. |
| Volts L1-L2 Low | Generator Voltage Low | Output voltage falls below 80% of nominal system voltage for more than 10 seconds. | Shutdown | Reduce load and restart; check enclosure thermostat and reset if tripped; contact dealer. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Frequency Adjustment, RDC Controller adjustment
⚠ Hazardous voltage.
⚠ Moving parts.
Tools: frequency meter
- Attach frequency meter to AC output leads or load-side outlet.
- Start and run generator at least 10 minutes to normal operating temperature.
- Adjust engine governor speed (parameter 4P) to 60 Hz or 50 Hz as appropriate.
- With no load, adjust governor gain (parameter 5P) until stable with no hunting or surging.
- Check frequency; repeat steps 3 and 4 if necessary.
- Save settings.
Fuel Conversion, 14RES/RESL (NG to LP) adjustment
⚠ Explosive fuel vapors.
⚠ Accidental starting.
Tools: dry cloth or brush, pipe sealant, gas leak detector
- Press OFF and remove F3 fuse; disconnect battery charger.
- Disconnect starting battery, negative lead first; turn off fuel supply.
- Remove hose clamp and fuel hose from fuel block fitting.
- Remove hose fitting from natural gas outlet port.
- Remove plug from LP port.
- Clean plug, apply fresh pipe sealant, install in natural gas port.
- Clean hose fitting, apply fresh pipe sealant, install in LP port.
- Slide hose onto fitting and secure with clamp.
- Disconnect DSAI leads for LP near fuel solenoid valve.
- Connect and turn on new fuel supply.
- Reconnect battery, negative lead last; reconnect battery charger.
- Install F3 fuse and start generator set with RUN button.
- Check for leaks using a gas leak detector.
- Run generator set and check operation; adjust output and stability if necessary.
- Press OFF to shut down generator set.
Fuel Conversion, 20RES/RESL (NG to LP) adjustment
⚠ Explosive fuel vapors.
⚠ Accidental starting.
Tools: gas leak detector
- Press OFF and remove F3 fuse; disconnect battery charger.
- Disconnect starting battery, negative lead first; turn off fuel supply.
- Remove hose clamp and fuel hose from hose fitting.
- Insert LP orifice into hose fitting.
- Slide hose onto fitting and secure with clamp.
- Disconnect DSAI leads 65 and N5 for LP.
- Connect and turn on new fuel supply.
- Reconnect battery, negative lead last; reconnect battery charger.
- Reinstall F3 fuse and start generator set with RUN button.
- Check for leaks using a gas leak detector.
- Run generator set and check operation; adjust output and stability if necessary.
- Press OFF to shut down generator set.
RDC2 Voltage Calibration Using SiteTech adjustment
Tools: digital voltmeter, personal computer, SiteTech software
- Connect PC to controller via USB
- With generator off, connect multimeter across L1/L2 (AC volts)
- Start generator set
- Compare voltmeter reading to controller display
- Calculate new Genset Calibration Factor Voltage using (Vmeter / Vcontrol) x Fold = Fnew
- Enter new value into SiteTech and click Apply Changes
- Verify voltmeter matches controller display
- Repeat for L2-L3 and L3-L1 if three-phase
- Press OFF to stop generator set
RDC2 Voltage Calibration Using the Controller Keypad adjustment
Tools: digital voltmeter
- With generator off, connect digital multimeter across L1 and L2, set to AC volts
- Start generator set with RUN button
- Navigate to Generator Metering menu, press Select; Volts L1-L2 displayed
- Press Select; voltage number flashes
- Use up/down arrows to match voltmeter reading
- Press Select to confirm
- Step to Return screen
- Press OFF to stop generator set
VSC Current (Load) Calibration Using the Controller Keypad adjustment
Tools: clamp-on DC current probe or DC current meter
- Connect DC current probe/clamp meter to measure generator current
- Start generator with RUN button
- Adjust system voltage to obtain rated current output with battery bank attached (or use load bank)
- Trip output breaker
- Navigate to Generator Metering menu, select Generator Load
- Press and hold Select for No-Load Calibration; verify breaker open, confirm Yes
- Close output breaker; verify rated output current, confirm Yes
- Verify displayed load is correct; recalibrate if necessary
- Press OFF to stop generator set
Voltage Adjustment, RDC Controller adjustment
⚠ Hazardous voltage.
⚠ Moving parts.
Tools: digital multimeter
- With generator off, connect digital multimeter to output leads or load-side outlet; set to AC voltage.
- Start generator with RUN button.
- Adjust parameter 1P until output voltage reaches desired value.
- Adjust voltage stability (gain, parameter 2P) to minimize light flicker.
- Readjust voltage if necessary.
- Save settings.
- Stop generator.
Clearing a Fault on the RDC2 Controller diagnostic
⚠ Always identify and correct the cause before resetting.
- Identify and correct the cause of the fault shutdown before resetting the controller.
- While the fault message is displayed, press Select to go to the Overview menu.
- Press Select again; the active fault message is displayed.
- Press Select; Confirm Clear Fault: NO is displayed.
- Press Down arrow; Confirm Clear Fault: YES is displayed.
- Press Select to enter YES and clear the fault.
- Press Select to return to the overview menu; the controller changes to OFF mode.
- Press AUTO to put the generator set into automatic mode.
Obtain DC2 Controller Password and Serial Number diagnostic
- Press OFF and verify that the generator set is not running.
- Press and hold the Exercise button until Press Again to Reset OnCue Plus PW is displayed.
- Release the Exercise button and press it again within 5 seconds.
- Write down the serial number (S/N) and password.
Obtain RDC/DC Controller Password diagnostic
- Press OFF to place the controller into OFF mode.
- Press the down arrow button (RDC) or exercise button (DC) 5 times.
- Note the four-digit code displayed on the controller; this is the controller password.
- Write down the password and press OFF to clear the display.
Obtain RDC2 or VSC Controller Password and Serial Number diagnostic
- Press the controller down arrow button to navigate to the Networking Information menu.
- Follow the reset password procedure shown in Figure 1-3.
- Write down the serial number (S/N) and password displayed for 10 seconds.
Power Cycle the Controller diagnostic
- Disconnect all input power for two minutes to allow capacitors to discharge.
- Remove the battery negative cable or disconnect P1 from the back of the controller.
- Disconnect the battery charger 120 VAC input power supply or disconnect P5 from the back of the controller.
- Unplug the USB mini-B connector from the front of the controller if plugged in.
- Wait two minutes, then reconnect power, hooking up battery power (P1) first.
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Voltage reconnection
| Voltage | Phase | Connection | Leads | Notes |
|---|---|---|---|---|
| Model RDT/RSB transfer switch or remote start/stop | terminals 3 and 4 | Route engine start leads through separate conduit from AC power and load leads. | ||
| Model RRT transfer switch interface | ATS1--ATS4 | Connect interface panel to ATS1--ATS4 before connecting engine starting battery. | ||
| Utility power | Utility terminals | Connect to GFCI-protected circuit supplied by utility and backed up by generator. | ||
| 100/200 | 1 | Single | ||
| 100/200 | 3 | Delta | ||
| 110/220 | 1 | Single | ||
| 110/220 | 3 | Delta | ||
| 115/230 | 1 | Single | ||
| 120 | 1 | Single | Genset System Voltage/Frequency/Phase table for controller setup | |
| 120/208 | 3 | Wye | ||
| 120/240 | 1 | Field-connection terminal block | L1, L2, L0, GRD | Connect transfer switch emergency source to L1 and L2; neutral L0 and ground GRD to corresponding points. |
| 120/240 | 1 | Single | ||
| 120/240 | 1 | Single phase | 4 | 1.0 power factor |
| 120/240 | 3 | Delta | ||
| 127/220 | 3 | Wye | ||
| 220 | 1 | Single | ||
| 220/380 | 3 | Wye | ||
| 230 | 1 | Single | ||
| 230/400 | 3 | Wye | ||
| 240 | 1 | Single | ||
| 240/416 | 3 | Wye | ||
| 277/480 | 3 | Wye |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Common questions
What size generator is the Kohler 20RES?
The Kohler 20RES is rated 20 kW standby (21.0 kVA).
Which engine powers the Kohler 20RES?
The Kohler 20RES is powered by the Kohler CH1000 engine.
What fuel does the Kohler 20RES use?
The Kohler 20RES runs on natural gas or LPG.
What is the oil capacity of the Kohler 20RES?
The Kohler CH1000 engine in the Kohler 20RES has an oil capacity of 1.9 liters.
How much coolant does the Kohler 20RES hold?
The Kohler 20RES cooling system holds 2.5 liters (0.7 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the continuous rating of the Kohler 20RES?
The Kohler 20RES is rated 15 kW prime (20 kVA), against 20 kW standby.
How loud is the Kohler 20RES?
The Kohler 20RES is rated at 69.0 dBA at 23 ft m, per the manufacturer specification sheet.
How much does the Kohler 20RES weigh?
The Kohler 20RES has a dry weight of 243 kg (535 lb).
How big is the fuel tank on the Kohler 20RES?
The Kohler 20RES has a 15 liter (4 US gallon) fuel tank, giving about 8 hours of runtime.
What voltage does the Kohler 20RES produce?
The Kohler 20RES is offered in 120/240 V, 1-phase.
What battery does the Kohler 20RES use?
The Kohler 20RES uses 1 battery, 12 V each, 500 CCA, group 51, per the manufacturer specification sheet. The starting system is 12 V DC.
What alternator does the Kohler 20RES use?
The Kohler 20RES uses a 2F7 alternator. It has 2 poles. Insulation class Class H.
What oil filter does the Kohler 20RES use?
The Kohler 20RES uses oil filter part number 52 050 02-S.
What air filter fits the Kohler 20RES?
The Kohler 20RES uses air filter part number 62 083 04-S.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Controller display backlight is off | Backlight turns off after about 1 minute with no activity | Backlight will turn on when a button is pressed or the generator set starts |
| Controller display is off | Low or no battery voltage | Check connections; Check generator set battery |
| The generator set does not crank | Battery weak or dead | Recharge or replace the battery |
| The generator set does not crank | Battery connections reversed or poor | Check the connections |
| The generator set does not crank | Fault shutdown | Check the controller display for fault messages. See Section 2.5. Correct the fault condition and reset the controller |
| The generator set does not crank | Generator set in the OFF mode | Press the RUN button to start the engine or press AUTO to allow remote starting |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Kohler 20RES troubleshooting guide (48 entries) →
Repair guides
41- Add New Generator
- Air Cleaner Paper Element Service
- Air Cleaner Service (14 kW Models)
- Air Cleaner Service (20 kW Models)
- Battery Installation Procedure
- Checking Electrolyte Level
- Cleaning the Battery
- Clearing a Fault on the RDC2 Controller
- Clearing a Fault on the RDC2 Controller
- Connect OnCue Plus for RDC2/DC2/VSC
- Control PIM Outputs
- Field-Connection Terminal Block Wiring
- Frequency Adjustment, RDC Controller
- Fuel Conversion, 14RES/RESL (NG to LP)
- Fuel Conversion, 20RES/RESL (NG to LP)
- Install Carburetor Heater, 17/18/20 kW Models
- Install Carburetor Heater, Models 8-12RESV/RESVL
- Install OnCue Plus Wireless for RDC2/DC2
- Installation Procedure, 17/18/20 kW Models
- Installation Procedure, Models 8-12RESV/RESVL
Step-by-step procedures compiled from the Kohler service manual for this model.
Parts
250| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 103-0731 | Gasket, Gearcase | 1 | Gasket | Amazon eBay |
| 103-0733 | Gasket, Gearcase Backplate | 1 | Gasket | Amazon eBay |
| 103-0746 | Gearcase (Includes Oil Seal and Oil Fill Tube) | Seal | Amazon eBay | |
| 110-1718 | Head, Cylinder Gasket, Cylinder Head | 2 | Gasket | Amazon eBay |
| 110-2987 | Gasket, Cylinder Head | 2 | Gasket | Amazon eBay |
| 110-3225 | Gasket, Cylinder Head | 1 | Gasket | Amazon eBay |
| 120-0491 | Pump, Oil | 1 | Pump | Amazon eBay $30.00 |
| 120-1041 | Bearing, Oil Pump Idler Gear (Semi Finished) | 1 | Pump | Amazon eBay |
| 130-0755 | 8racket, Mounting Heater, Tank - 850 Watt, 115 Volt (Includes Hose Connector, Cord and Mounting Strap) | 1 | Hose | Amazon eBay |
| 130-2500 | Guard, Belt (Left Side) | 1 | Belt | Amazon eBay |
| 134-1437 | Spring - Injecion Pump Lever | 1 | Pump | Amazon eBay |
| 140-1787 | Hood, Air Cleaner | 1 | Air filter | Amazon eBay |
| 140-1791 | Indicator Service | 1 | Sensor | Amazon eBay |
| 140-1841 | Cleaner. Air (Includes Element) | 1 | Air filter | Amazon eBay $50.00 |
| 140-2174 | Cleaner, Air - Oil Bath Band. Mount ing | 1 2 | Air filter | Amazon eBay |
| 140-2234 | Tube. Air Inlet | Hose | Amazon eBay | |
| 141-0982 | Gasket | 2 | Gasket | Amazon eBay |
| 141-0983 | Gasket, Carburetor | 1 | Gasket | Amazon eBay |
| 147-0436 | Seal, Injector | 6 | Seal | Amazon eBay |
| 147-0465-12 | Pump, Fuel Injection (See Separate Page for Components) | 1 | Pump | Amazon eBay |
| 147-0701 | Injector, Fuel (Includes Seal) | 6 | Seal | Amazon eBay |
| 147-0856 | Injector, Fuel (Includes Parts Marked #) | 2 | Injector | Amazon eBay FridayParts $72.02 |
| 147-0864 | #O'Ring, Injector | 2 | Injector | Amazon eBay |
| 147-0865 | #O'Ring, Injector | 2 | Injector | Amazon eBay |
| 147-2715 | Remote Fuel Pump Kit EFI (HGJAA) | 1 | Fuel pump | Amazon eBay |
| 149-1445 | Filter | 1 | Fuel filter | Amazon eBay $19.95 |
| 149-1446 | Gasket, Cover | 1 | Gasket | Amazon eBay |
| 149-1828 | Pump, Fuel (Electric) | 1 | Pump | Amazon eBay $39.59 FridayParts $40.41 |
| 149-1914-04 | Element, Filter (Includes O-fling Seal) (2 M~CPXI) | 1 | Seal | Amazon eBay |
| 149-1920 | Plate, Mounting - Fuel Filter Elbow, Hose - Male | 1 | Fuel filter | Amazon eBay |
| 149-1921 | Plate, Mounting - Fuel Filter Elbow, Hose - Male | 1 | Fuel filter | Amazon eBay |
| 149-1922 | Spacer, Mounting - Fuel Filter | 1 | Fuel filter | Amazon eBay |
| 149-1949 | Head Assembly. Replacement (Includes Vent Plug. O-Ring Seals. Pump Assembly and Tube) Seal) | 1 | Seal | Amazon eBay |
| 149-1953 | Drain Assy (Includes Knob and Seal) | 1 | Seal | Amazon eBay |
| 149-2100 | Filter Assembly, Fuel Element. Filter | 1 | Fuel filter | Amazon eBay |
| 149-2106 | Element | 1 | Fuel filter | Amazon eBay $34.99 NAPA $61.61 KuduParts $68.00 |
| 149A159 | Gasket - Spacer - BLAKING mfr. pump only | 2 | Gasket | Amazon eBay |
| 149A551 | Lever, Hand Primer - ONAN mfr. pump only | 1 | Pump | Amazon eBay |
| 149D693 | Pump, Fuel - ONAN mfr., with primer lever - Replaces earlier atyle pumps used, of any manufacture | 1 | Pump | Amazon eBay |
| 149K526 | Repair Kit, Fuel Pump | 1 | Fuel pump | Amazon eBay |
| 149K74 | Repair Kit, Fuel Pump - Includes parts marked (* anda) - For AC mfr., BLAKING mfr. or ONAN mfr. pumps | 1 | Fuel pump | Amazon eBay |
| 151-0437 | Kit, Throttle Modification (Fuel Injection Pump) | 1 | Fuel pump | Amazon eBay |
| 1512-0154 | Belt Fan | 1 | Belt | Amazon eBay |
| 154-3067-02 | Manifold Assy, Intake (Includes Hose Connector) | 1 | Hose | Amazon eBay |
| 154-3085 | Gasket, Intake Manifold | 2 | Gasket | Amazon eBay |
| 154P570 | Union, Manifold Flange | 2 | Exhaust | Amazon eBay |
| 155-2073 | Gasket, Exhaust Pipe | 1 | Gasket | Amazon eBay |
| 155-2415 | Seal, Muffler Support | 18 | Seal | Amazon eBay |
| 155-2619 | Spec D, Exhaust Manifold) *Gasket. Elbow - Exhaust (WC 0) | 1 | Gasket | Amazon eBay |
| 15SA47 | Tube, Flexible Exhaust | 2 | Exhaust | Amazon eBay |
| 165-2203 | Gasket, Manifold - Exhaust (&xx A-C) | : | Gasket | Amazon eBay |
| 167-0272 | Spark plug | 2 | Spark plug | Amazon eBay |
| 168-0174 | Kit, Gasket - Valve Grind | 1 | Gasket | Amazon eBay |
| 185-2175 | Gasket | 1 | Gasket | Amazon eBay |
| 185-2199 | Band, Mounting - Air Cleaner | 1 | Air filter | Amazon eBay |
| 185-2203 | Gasket, Manifold - Exhaust (&xx A-C) | 1 | Gasket | Amazon eBay |
| 185-2239 | Clamp, Hose | 1 | Hose | Amazon eBay |
| 185-2240 | Clamp, Hose | 2 | Hose | Amazon eBay |
| 185-2266 | Alternator (12 VDC) (See Separate Page for Components) | 1 | Alternator | Amazon eBay |
| 185-2284 | Gasket | 2 | Gasket | Amazon eBay |
| 185-2300 | Clamp, Hose | 1 | Hose | Amazon eBay |
| 185-2311 | Housing, Thermostat | 1 | Thermostat | Amazon eBay FridayParts $27.75 |
| 185-2421 | Hose, Rubber - Overflow | 1 | Hose | Amazon eBay |
| 187-6224 | Gasket, Rocker Cover | 1 | Gasket | Amazon eBay |
| 187-6230 | Gasket, Cylinder Head (1) | 1 | Gasket | Amazon eBay |
| 187-6238 | Gasket, Breather Plate | 1 | Gasket | Amazon eBay |
| 191-1368 | Arm, Alternator Adjusting | 1 | Alternator | Amazon eBay |
| 191-1872 | Alternator (12 VDC) (Gl) | 1 | Alternator | Amazon eBay |
| 191-1983-01 | Alternator | 1 | Alternator | Amazon eBay |
| 191-2085 | Strap, Alternator Adjust | 1 | Alternator | Amazon eBay |
| 193-0247 | 'Sender, Temperature - Engine Coolant | 1 | Sensor | Amazon eBay |
| 193-0469 | Sensor, Map | 1 | Sensor | Amazon eBay |
| 193-0480 | Sensor, Manifold Air Temperature | 1 | Sensor | Amazon eBay |
| 300-2880 | Board, Voltage Regulator (VR21) | 1 | Avr | Amazon eBay FridayParts $350.50 |
| 300-2906 | Board Assy, Printed Circuit - Over/Under Volt Sensor (A17) | i | Sensor | Amazon eBay |
| 302-0750 | 'Sender, Tachometer | 1 | Sensor | Amazon eBay |
| 304A66 | Resistor, 4xELI | 1 | Resistor | Amazon eBay |
| 305-0491 | REGULATOR. 305-0491 | 1 | Avr | Amazon eBay |
| 305-0901 | Sensor, Low Battery Voltage | 1 | Sensor | Amazon eBay |
| 307-1061 | Relay, Starter Protection | 1 | Starter | Amazon eBay |
| 307P820 | Relay, Adjustabe Start Disconnect & Crankshaft Limiter | 1 | Relay | Amazon eBay |
| 309-0178 | Switch, High Water Temperature Top Mounted On Water Outlet Housing | 1 | Sensor | Amazon eBay $350.00 |
| 309-0179 | Switch, High Water Temperature (Standard Part) Side Mounted On Water Outlet Housing | 1 | Sensor | Amazon eBay |
| 309-0269 | Sender, Temperature-Lo Engine | 1 | Sensor | Amazon eBay $239.00 |
| 322-17 | Bulb, (2) Panel ( I ) Pilot | 2 | Lamp | Amazon eBay |
| 322P69 | Bracket, Mounting - Engine | 1 | Bracket | Amazon eBay |
| 323-1591 | # Plug, Seal (E1) | 1 | Seal | Amazon eBay |
| 323-1708 | # Seal, Cable (P8) | 4 | Seal | Amazon eBay |
| 332AI006 | Block, Terminal | 1 | Block | Amazon eBay |
| 332AI009 | Block, Terminal | 1 | Block | Amazon eBay |
| 358072 | 3/8"-16 UNC-2A THD Thrubolt | 1 | Bolt | Amazon eBay |
| 48 099 07-S | Switch, oil pressure | 1 | Sensor | buy |
| 501-0225 | 45' Lg - With Both Ends 1/8' NPT Male Fittings | 1 | Belt | Amazon eBay |
| 501-0227 | Line, Fuel - Flexible (24' La x 1/8' NPT Male x-1/8° NPT Male) | 1 | Hose | Amazon eBay |
| 502-0068 | Tee (3/8' x 5/8' x 5/8') to | 1 | Hose | Amazon eBay |
| 502-0313 | Elbow, Hose − 90° (1/8” Pipe to 1/4” Hose) | 1 | Hose | Amazon eBay |
| 502-0433 | [;b'$P&x 5/16 ID Hose] | 1 | Hose | Amazon eBay |
| 502-0613 | Connector, Hose | 1 | Hose | Amazon eBay |
| 502-0869 | Connector (3/8') | 1 | Hose | Amazon eBay |
| 502-0870 | Tee, Hose | 1 | Hose | Amazon eBay |
| 502-1314 | Connector, Hose | 1 | Hose | Amazon eBay |
| 503-0183 | Clamp, Hose | 1 | Hose | Amazon eBay |
| 503-0365 | Clamp, Hose | 1 | Hose | Amazon eBay |
| 503-0594 | Hose, Rubber - Preformed | 1 | Hose | Amazon eBay |
| 503-059b | Hose, Rubber - Preformed | 1 | Hose | Amazon eBay |
| 503-0685 | Clamp, Hose | 1 | Hose | Amazon eBay $15.00 |
| 503-1058 | Spacer, Fan Hose, Radiator - Upper | 1 | Hose | Amazon eBay |
| 503-1062 | Hose - Intake Manifold Water Pump (3/8' ID) | 1 | Hose | Amazon eBay |
| 503-1074 | Hose Reducer | 1 | Hose | Amazon eBay |
| 503-1084 | Elbow. Reducer | Hose | Amazon eBay | |
| 503-1250 | Hose, Water Bypass (5/8' Ill) | 1 | Hose | Amazon eBay |
| 503-1251 | Hose, Water Bypass (5/8' 10] | 1 | Hose | Amazon eBay |
| 503-1450 | Hose, Cleaner - Air | 1 | Hose | Amazon eBay |
| 503-1552-01 | Ho!M? (5/8' ID X 14') | 2 | Hose | Amazon eBay |
| 503-2126 | Hose, Vacuum | 1 | Hose | Amazon eBay |
| 503-365 | Clamp, Hose | 2 | Hose | Amazon eBay |
| 505-0180 | Plug, Pipe (1-1/4"), Air Cleaner Adapter and Intake Manifold | 1 | Air filter | Amazon eBay |
| 505-382 | Nipple, Exhaust(3"x 2-5/8") | 2 | Exhaust | Amazon eBay |
| 505-4 | Hose (Order 6 “of Bulk Hose Number 503-324) | I 9 | Hose | Amazon Amazon eBay eBay |
| 509-0125 | Key, Handle - Screw, Lock (3/8 - 16 x .75") | 1 | Seal | Amazon eBay |
| 509-0191 | Seal, Oil (Includes Wear S1eeve ) | 1 | Seal | Amazon eBay |
| 509-0196 | O'Ring | 1 | Seal | Amazon eBay |
| 511-0112 | Belt, Fan | 1 | Belt | Amazon eBay |
| 515-0094 | Key, Crankshaft Woodruff Belt | 1 | Belt | Amazon eBay |
| 52 050 02-S | Filter, oil | 1 | Oil filter | Amazon |
| 520-2403 | Stud, Injection Pump (M8) | 3 | Pump | Amazon eBay |
| 62 032 16-S | Seal, oil | 1 | Seal | buy |
| 62 041 24-S | Gasket, lifter feed cover | 1 | Gasket | buy |
| 62 083 04-S | Element, air filter | 1 | Air filter | buy |
| 62 132 04-S | Spark plug | 2 | Spark plug | Amazon |
| 718-1069 | Fan Pldl@y Sell. Vee Smwv, Cap Hex Head (M8 X I 25 X 25] | 1 | Belt | Amazon eBay |
| 750-1004 | Nut, Hex (M6 x 1) Washer, Lock - Spring (M6) Adapter, Hose Hose, Rubber - Preformed | 1 | Hose | Amazon eBay |
| GB31613529803 | Terminal Block, Green and Yellow | 1 | Terminal block | Amazon eBay |
| GM102176 | Oil pressure sensor boot | 1 | Sensor | Amazon eBay |
| GM20990 | Gasket | 4 | Gasket | Amazon eBay |
| GM28823 | Sensor, oil temperature | 1 | Sensor | Amazon eBay $50.00 |
| GM51559 | 3/8"-16 UNC-2A THD Thrubolt | 1 | Thrubolt | Amazon eBay |
| GM62982 | 7/16"-14 UNC-2A THD Thrubolt | 1 | Thrubolt | Amazon eBay |
| GM69859 | Terminal Block, Grey | 3 | Terminal block | Amazon eBay |
| GM69860 | Terminal Block, Blue | 1 | Terminal block | Amazon eBay |
| GM76192 | 7/16"-14 UNC-2A THD Thrubolt | 1 | Thrubolt | Amazon eBay |
| GM88401 | 5/16"-24UNF-2A THD Thrubolt | 1 | Thrubolt | Amazon eBay |
| GM92505 | Thermostat, 250_F | 1 | Thermostat | Amazon |
| GM98597-KP | Terminal Block, Green and Yellow | 1 | Terminal block | Amazon eBay |
| 098-7130 | Label, Warning Heat | 1 | Service part / kit | Amazon eBay |
| 098-7369-01 | HDCAC | 2 | Service part / kit | Amazon eBay |
| 098-7374 | Label, Warning | 1 | Service part / kit | Amazon eBay |
| 098-7375 | Label, Switch | 1 | Service part / kit | Amazon eBay |
| 098-7376 | Label, Circuit Breaker | 1 | Service part / kit | Amazon eBay |
| 098-7398-01 | HDCAA | 2 | Service part / kit | Amazon eBay |
| 098-7398-02 | HDCAB | 2 | Service part / kit | Amazon eBay |
| 098-7399-01 | 45A, 2 Pole | 1 | Service part / kit | Amazon eBay |
| 098-7399-02 | 50A, 2 Pole | 1 | Service part / kit | Amazon eBay |
| 098-7461 | Label, Warning Hazardous Voltage | 1 | Service part / kit | Amazon eBay |
| 098-7462 | Label, Service Information Label, Model Ident | 1 | Service part / kit | Amazon eBay |
| 098-7463 | Label, Fuel Attachment | 1 | Service part / kit | Amazon eBay |
| 098-7464 | Label, Coolant Drain | 1 | Service part / kit | Amazon eBay |
| 098-7465-03 | Label, Control Face | 1 | Service part / kit | Amazon eBay |
| 098-7466 | Label, Control Rear | 1 | Service part / kit | Amazon eBay |
| 098-7497-01 | Label, Warning Install | 1 | Service part / kit | Amazon eBay |
| 098-7498-01 | Label, Warning Hazardous | 1 | Service part / kit | Amazon eBay |
| 098-7515-01 | Label, Warning Voltage | 1 | Service part / kit | Amazon eBay |
| 101-0439 | Plate, Rear Bearing Bearing, Crankshaft | 1 | Service part / kit | Amazon eBay NAPA $95.66 |
| 102-0778 | Adapter, Pipe - Oil Drain | 1 | Service part / kit | Amazon eBay |
| 104-0032 | Gear, Crankshaft | 1 | Service part / kit | Amazon eBay NAPA $260.36 |
| 104-0091 | Washer, Flat (Special) | 4 | Service part / kit | Amazon eBay |
| 104-1953 | Washer, Flat (1/2' ID x 2.25' OD) | 1 | Service part / kit | Amazon eBay |
| 104-1958 | Marked *) Spec A/B Begin Spec C *Pulley Assy, Drive (Includes | 1 | Service part / kit | Amazon eBay |
| 104-2000 | Marked *) Spec A/B Begin Spec C *Pulley Assy, Drive (Includes | 1 | Service part / kit | Amazon eBay |
| 105-0058 | Plunger, Camshaft | 1 | Service part / kit | Amazon eBay |
| 105-0059 | Spring, Plunger | 1 | Service part / kit | Amazon eBay |
| 105-0508 | Shaft, Idler Gear | 1 | Service part / kit | Amazon eBay |
| 105-0513 | Gear, Idler (Includes Finished 8earing) | 1 | Service part / kit | Amazon eBay |
| 105-0519 | 8earing, Idler Gear (Semi Finished) | 1 | Service part / kit | Amazon eBay |
| 105-0541 | Washer, Thrust | 1 | Service part / kit | Amazon eBay |
| 105-0641 | Gear (Includes Spacer and Plate) | 1 | Service part / kit | Amazon eBay |
| 105-0676 | Camshaft | 1 | Service part / kit | Amazon eBay |
| 10S-2283 | Cap | 1 | Service part / kit | Amazon eBay |
| 110-0904 | Rotocap, Exhaust | 2 | Service part / kit | Amazon eBay NAPA $116.06 FridayParts $124.86 |
| 110-1719 | Valve, Exhaust | 2 | Service part / kit | Amazon eBay |
| 110-2181-03 | .50 MM Oversize | 6 | Service part / kit | Amazon eBay |
| 110-2781-01 | Standard | 6 | Service part / kit | Amazon eBay |
| 110-2781-02 | .25 MM Oversize | 6 | Service part / kit | Amazon eBay |
| 110-3045 | Standard | 1 | Service part / kit | Amazon eBay FridayParts $124.86 |
| 110-3226-01 | Standard | 6 | Service part / kit | Amazon eBay |
| 110-3226-02 | .25 MM Oversize | 6 | Service part / kit | Amazon eBay |
| 110-3226-03 | .50 MM Oversize | 6 | Service part / kit | Amazon eBay |
| 110-3245 | Cap, Valve Stem (Not used on some early models) | 1: | Service part / kit | Amazon eBay |
| 110-3462 | Valve, Exhaust Valve | 2 | Service part / kit | Amazon eBay |
| 110-3462-01 | Oversize | 2 | Service part / kit | Amazon eBay |
| 110-3462-02 | .005' Oversize | 2 | Service part / kit | Amazon eBay |
| 110-3462-03 | .010' Oversize | 2 | Service part / kit | Amazon eBay |
| 110-3462-04 | .025' Oversize Seat, Intake Valve | 2 | Service part / kit | Amazon eBay |
| 110-3490 | 0.5 MM Oversize | Service part / kit | Amazon eBay | |
| 110-3655 | .005' Oversize | 2 | Service part / kit | Amazon eBay |
| 110-3655-05 | Piston Ring Standard .005 Oversize | 24 | Service part / kit | Amazon eBay |
| 110-3655-10 | .010' Oversize | 2 | Service part / kit | Amazon eBay |
| 112-0265 | Piston (Includes Pin, Rings and Retaining Rings) Oversize Oversize Oversize Oversize | 2 | Service part / kit | Amazon eBay |
| 112-0265-01 | Standard Oversize | 2 | Service part / kit | Amazon eBay |
| 112-0265-02 | Standard Oversize | 2 | Service part / kit | Amazon eBay |
| 112-0265-03 | Standard Oversize | 2 | Service part / kit | Amazon eBay |
| 112-0265-05 | Standard Oversize | 2 | Service part / kit | Amazon eBay |
| 112-0267 | Standard Oversize | 2 | Service part / kit | Amazon eBay |
| 112-0268 | Pin, Piston Ring, Retaining | 2 | Service part / kit | Amazon eBay |
| 113-0311 | Standard Oversize Oversize | 2 | Service part / kit | Amazon eBay |
| 113-0311-01 | .010 Oversize | 2 | Service part / kit | Amazon eBay |
| 113-0311-02 | .020 Oversize | 2 | Service part / kit | Amazon eBay |
| 113-0311-03 | .030 Oversize | 2 | Service part / kit | Amazon eBay |
| 113-0311-05 | Standard | 2 | Service part / kit | Amazon eBay |
| 114-0036 | Bushing, Bearing, Connecting Rod | 2 | Service part / kit | Amazon eBay |
| 114-0188 | Standard | 4 | Service part / kit | Amazon eBay $29.95 |
| 114-0188-02 | .002' Undersize .010' Undersize | 4 | Service part / kit | Amazon eBay |
| 114-0188-10 | .010' Undersize .020' Unders0size | 4 | Service part / kit | Amazon eBay |
| 114-0188-20 | .020' Undersize | 4 | Service part / kit | Amazon eBay |
| 114-0203 | Rod, Connecting (Includes Bolt and Bushing) | 2 | Service part / kit | Amazon eBay |
| 115-0202 | Ball, Rocker Arm | 1: | Service part / kit | Amazon eBay |
| 115-0204 | Short | 6 | Service part / kit | Amazon eBay |
| 115-0253 | Pushrod | 1; | Service part / kit | Amazon eBay |
| 115-0270 | Long | 6 | Service part / kit | Amazon eBay |
| 115-0313 | Guide, Pushrod | 3 | Service part / kit | Amazon eBay |
| 115-0315 | Locknut, Rocker Arm | ;; | Service part / kit | Amazon eBay |
| 115-0316 | Arm, Rocker | Service part / kit | Amazon eBay | |
| 120-0920 | Tube, Rocker Arm Oil | 1 | Service part / kit | Amazon eBay |
| 120-1063 | Washer, Flat | 1 | Service part / kit | Amazon eBay |
| 123-1533 | Indicator, Oil Level | 1 | Service part / kit | Amazon eBay |
| 123-1534 | Head Flange (M8 x 19MM) Tube, Oil Level | 1 | Service part / kit | Amazon eBay |
| 123-1535 | Screw, Self-Locking - Hex (#8-18 x 1/2') | 1 | Service part / kit | Amazon eBay |
| 130-0810 | Guard, Fan - Right Side | 1 | Service part / kit | Amazon eBay |
| 130-0811 | Gual'd, Fan - Left Side | 1 | Service part / kit | Amazon eBay |
| 130-1805 | Guard, '8elt Screw, Locking - Hex Washer Head (!5/16-18 x 1/2') | 1 | Service part / kit | Amazon eBay |
| 130-2493 | Guard, 8elt (Right Side) | 1 | Service part / kit | Amazon eBay |
| 130-3024 | Brace, Radiator | 1 | Service part / kit | Amazon eBay |
| 130-3870 | Guard, Scroy, Capt+ex Head (Mtox | 1 | Service part / kit | Amazon eBay |
| 130A80 | Screw, Hex Cap ( I /,$-20 x I “ ) | I | Service part / kit | Amazon eBay |
| 140-0722 | Band, Mount ing | 2 | Service part / kit | Amazon eBay |
| 140-1260 | Fitting, Safety Filter | 2 | Service part / kit | Amazon eBay $116.27 NAPA $10.13 |
| 140-1559 | Hood | 1 | Service part / kit | Amazon eBay |
| 146-0736 | Body, Throttle | 1 | Service part / kit | Amazon eBay |
| 146-0773 | Insulator, Carburetor *Carburetor | 1 | Service part / kit | Amazon eBay |
| 146-0774 | Insulator, Carburetor *Carburetor | 1 | Service part / kit | Amazon eBay |
| 146-0782 | Body Assy, Throttle (See Separate Page for Components) | 1 | Service part / kit | Amazon eBay |
| 147-0673 | Clamps Six Lines Connector | Service part / kit | Amazon eBay | |
| 147-0855 | Rail Assy, Fuel (Includes Parts Marked *) | 1 | Service part / kit | Amazon eBay |
| 147-0866 | Clamp, Fuel Rail | 1 | Service part / kit | Amazon eBay |
| 147-0867 | Regulator, Fuel Pressure | 1 | Service part / kit | Amazon eBay |
| 147-0868 | Ring, Pressure Regulator Snap | 1 | Service part / kit | Amazon eBay |
| 149-1908-04 | Plug. Pipe - Square Socket Drive Filter/Separator - Fuel (Pressure Type) (See | 1 | Service part / kit | Amazon eBay |
| 149-1908-06 | Filter/Separator - Fuel (Pressure Type) (Includes Electric Fuel Heater and Bowl Heater) (See Separate Page for Components) | 1 | Service part / kit | Amazon eBay |
| 149-1932 | Line, Fuel | 1 | Service part / kit | Amazon eBay |
| 149-1944 | Line. Fuel | : | Service part / kit | Amazon eBay |
Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 70% | 1.5 | 5.7 |
| Prime | 100% | 6.4 | 225.0 |
| Standby | 25% | 2.6 | 93.0 |
| Standby | 50% | 3.5 | 124.0 |
| Standby | 70% | 1.5 | 5.7 |
| Standby | 75% | 4.7 | 163.0 |
| Standby | 100% | 8.0 | 281.0 |
Available documents
Spec sheet (Kohler)Spec sheet — 14-20-RESA-Kohler-Residential-Generator (Kohler)Spec sheet — 14-20RESAL-Kohler-Residential-Generator (Kohler)Spec sheet — Kohler 20RESCL 2015 specs g4250 (Kohler)Spec sheet — Kohler.14.20.RESAL.SPEC.g4210.1.15 (Kohler)Spec sheet — Kohler.20RESC.g4246.10.15Spec sheet — g4246 (Kohler)Spec sheet — g4247 (Kohler)Operator's manual (Kohler)Operator's manual — 14RESx 20RESx Operation (Kohler)Operator's manual — 20resd operation manual 2019 (Kohler)Operator's manual — OnCue-Plus-Operation-Manual (Kohler)Operator's manual — tp6928 (Kohler)Reference (Kohler)Reference — 21-03R Air-Cooled Residential Product Updates - 2021 (Kohler)Reference — RES Consumer Referral Rebate (Kohler)Reference — ReferralRebateForm Editable1 (Kohler)Reference — Referral Rebate Form EDITABLE (Kohler)Reference — Rotor Stator Reading Form (Kohler)Reference — g6120 g11124 (Kohler)Reference — g6130 (Kohler)Reference — g6155 (Kohler)Reference — pb45 (Kohler)Reference — sb722 (Kohler)Reference — tp6944 (Kohler)Reference — tt1629 (Kohler)Owner's manual — TP-6804 1218M (Kohler)Owner's manual — tp6734 (Kohler)Owner's manual — tp6796 (Kohler)Owner's manual — tp6804 (Kohler)Owner's manual — tp6804cmp (Kohler)Parts manual (Kohler)Parts manual — Kohler 2017 Referral Rebate Consumer RES (Kohler)Parts manual — Kohler 2019 RES Consumer Referral Rebate (Kohler)Parts manual — g6129 (Kohler)Parts manual — kohlerpow datasheet stepid-2757002 (Kohler)Parts manual — tp6736 (Kohler)Parts manual — tp6806 (Kohler)Parts manual — tt1589 (Kohler)Service manual — Controllers tt1589 (Kohler)Service manual — Install 14 20 RESA (Kohler)Service manual — TP-6803 1218N (Kohler)Service manual — TT-1482 (Kohler)Service manual — TT-1770 (Kohler)Service manual — TT-1773 (Kohler)Service manual — adv8758 (Kohler)Service manual — adv9743 (Kohler)Service manual — g18256 (Kohler)Service manual — sb743 (Kohler)Service manual — sb749 (Kohler)Service manual — sb751 (Kohler)Service manual — tp6733 (Kohler)Service manual — tp6803 (Kohler)Service manual — tp6926 (Kohler)Service manual — tp7007 (Kohler)Service manual — tt1445 (Kohler)Service manual — tt1482 (Kohler)Service manual — tt1566 (Kohler)Service manual — tt1568 (Kohler)Service manual — tt1569 (Kohler)Service manual — tt1596 (Kohler)Service manual — tt1613 (Kohler)Service manual — tt1618 (Kohler)Service manual — tt1619 (Kohler)Service manual — tt1630 (Kohler)Service manual — tt1634 (Kohler)Service manual — tt1674 (Kohler)Service manual — tt1708 (Kohler)Service manual — tt1709 (Kohler)Service manual — tt1717 (Kohler)
This page was generated from the 70 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.
