Service parts for the 20RCA
Grouped by system, with how many of each the parts manual calls for.
Oil system
1 requiredElectrical
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Natural Gas/LPG |
|---|---|
| Frequency | 60.0 Hz |
| Standby power | 20 kW |
| Standby kVA | 20 |
| Emissions | Meets emission regulations for U.S. Environmental Protection Agency (EPA) with both natural gas and LPG |
| Controller | RDC2 |
| Oil capacity | 1.9 L |
| Alternator | PowerBoost™ |
| Voltage options | 12 V |
| Phase | 1 |
| Rated current | 75 A |
| Power factor | 1 |
| Circuit breaker | 20 A |
| Battery group | ['51'] |
| Battery cranking | [500] CCA |
| Battery voltage | 12 V |
| Battery quantity | 1 |
| Starting system | 12 V DC |
| Dimensions (L×W×H) | 1193×666×817 mm |
| Dry weight | 252 kg |
| Sound level | 64.0 dBA @ 7 m |
Maintenance & consumables
for the Kohler CH740 / CH1000 / CH1006| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry | — | 300 hr | ||
| Fuel filter | — | 200 hr | |||
| Oil filter | Cartridge | ×1 | 52 050 02-S | 200 hr | Amazon |
| Battery | Check battery electrolyte level monthly. Clean the battery and cables. Check specific gravity of each cell using a hydrometer. | EZ-273000-J | 31 hr | Amazon eBay | |
| 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 | Every 8 hours of engine operation | |
| Oil level (14 kW) | Check | 8 hr | Every 8 hours of engine operation | |
| Oil level (20 kW) | Check | 8 hr | Every 8 hours of operation | |
| Oil level, 14 kW models | Check | 8 hr | Every 8 hours of engine operation | |
| Oil level, 18/20 kW models | Check | 8 hr | Every 8 hours of engine operation | |
| Oil level, 20 kW models | Check | 8 hr | ||
| Oil level (26 kW) | Check | 24 hr | Every 24 hours of operation | |
| Oil level, 26 kW models | Check | 24 hr | ||
| Change oil | Change | 150 hr | 12 mo | Yearly or 100 hours |
| Change oil (14 kW models) | Change | 100 hr | 12 mo | Yearly or 100 hours |
| Change oil (14 kW) | Change | 100 hr | 12 mo | Yearly or 100 hours |
| Oil cooler (20/26 kW) | Clean | 100 hr | 12 mo | Yearly or 100 hours; inspect and clean |
| Replace filter (20/26 kW) | Replace | 100 hr | 12 mo | Yearly or 100 hours |
| Air cleaner service | Clean | 300 hr | 12 mo | Yearly or hours shown |
| Change oil (20 kW models) | Change | 150 hr | 12 mo | Yearly or 150 hours |
| Engine oil | Change | 150 hr | 20 kW models; Yearly or 150 hours | |
| Oil change (20/26 kW) | Change | 150 hr | 12 mo | Yearly or 150 hours |
| Oil cooler | Clean | 150 hr | 12 mo | 20RCA/RCAL only; yearly or 150 hours |
| Oil cooler (20RCA/RCAL only) | Clean | 150 hr | 12 mo | Yearly or 150 hours; inspect and clean, must be kept free of debris |
| Oil filter | Replace | 200 hr | 20 kW models; Yearly or 150 hours | |
| Replace oil filter | Replace | 200 hr | 12 mo | 20 kW models; yearly or 150 hours |
| Replace oil filter (20 kW models) | Replace | 150 hr | 12 mo | Yearly or 150 hours |
| Spark plugs | Check | 150 hr | 20 kW models; Yearly or hours shown | |
| Replace filter (oil) | Replace | 200 hr | 14 kW: Yearly or 200 hours; 20 kW: Yearly or 100 hours | |
| Replace oil filter (14 kW models) | Replace | 200 hr | 12 mo | Yearly or 200 hours |
| Replace oil filter (14 kW) | Replace | 200 hr | 12 mo | Yearly or 200 hours |
| Air cleaner service | Replace | 300 hr | 12 mo | Yearly or hours shown; service more frequently under dusty/dirty conditions |
| Brushes and collector ring | Inspect | 300 hr | 12 mo | Yearly or 300 hours; authorized distributor/dealer only |
| Optional 300 hour extended life oil change kit (26 kW) | Change | 300 hr | 24 mo | 2 years or 300 hours |
| Spark plugs | Replace | 300 hr | 14 kW: 300; 20 kW: 150 and 300 hours | |
| Spark plugs (14 kW) | Replace | 300 hr | Hours shown | |
| Spark plugs (20/26 kW) | Replace | 300 hr | 150/300 hours shown | |
| Crankcase breather hose | Check | 500 hr | Yearly or 500 hours | |
| Crankcase breather hose | Inspect | 500 hr | 12 mo | Yearly or 500 hours |
| Crankcase breather hose | Replace | 500 hr | 12 mo | Yearly or 500 hours |
| Replace stepper motor coupling and bushing | Replace | 500 hr | Authorized distributor/dealer only | |
| Stepper motor coupling and bushing | Replace | 500 hr | 14 and 20 kW models; authorized distributor/dealer only | |
| Wire-cable insulation condition | Inspect | 500 hr | 36 mo | 3 years or 500 hours |
| Wire-cable insulation condition | Test | 500 hr | 36 mo | 3 years or 500 hours |
| AC electrical system visible wear or damage | Inspect | 3 mo | Quarterly |
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 gap | 0.030 | in. | 14 and 20 kW models |
| Gap | Spark plug gap | 0.76 | mm (0.030 in.) | |
| Other | Battery specific gravity | 1.260 | fully charged at 80°F (26.7°C); charge if below 1.215 at 80°F (26.7°C) | |
| Other | Battery specific gravity charge threshold | 1.215 | specific gravity | at 80°F (26.7°C); charge if below |
| Other | Battery specific gravity fully charged | 1.260 | 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 | Engine cooldown time delay | 5 | minutes | |
| Other | Engine start crank cycle | 3 attempts, 15 sec crank / 15 sec off | ||
| Other | Governed frequency high shutdown | 110 | % of frequency setpoint for >10 sec | 10 sec inhibit after engine start |
| Other | Governed frequency low shutdown | 90 | % of frequency setpoint for >10 sec, or 1 Hz below setpoint for >60 sec | 10 sec inhibit after engine start |
| Other | Heater wrap rating | 50 | Watts | |
| Other | Heater wrap rating | 65 | Watts | |
| 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.) | |
| Other | Specific gravity, battery fully charged | 1.260 | electrolyte temperature 80 F (26.7 C) | |
| Other | Specific gravity, battery needs charging (below) | 1.215 | electrolyte temperature 80 F (26.7 C) | |
| Other | Starting battery rating | 500 | CCA at 0°F | 12-volt group 51 |
| Other | Voltage regulation | ±0.5% RMS | % | no-load to full-load |
| Pressure | Engine oil pressure | 172-241 | kPa (25-35 psi) | |
| Pressure | Fuel pressure required, LPG | 1.7-2.7 | kPa (7-11 in. H2O) | |
| Pressure | Fuel pressure required, Natural Gas | 0.9-2.7 | kPa (3.5-11 in. H2O) | |
| Pressure | Gas fuel leak test | 6-8 (10-14 inches water column) | ounces per square inch | LPG vapor or natural gas fuel system |
| Pressure | LPG fuel supply | 1.7-2.7 | kPa | |
| Pressure | Natural gas fuel supply | 0.9-2.7 | kPa | |
| Resistance | Resistance through brushes | 0.1-0.2 | ohms | without meter lead resistance |
| Resistance | Resistance through the brushes | 0.1-0.2 | ohms | without meter lead resistance |
| Resistance | Rotor insulation (megohmmeter) | 500 | kOhms minimum | 500 VDC applied |
| Resistance | Rotor resistance, cold (14 kW) | 5.2 | ohms | cold |
| Resistance | Rotor resistance, cold (14RCA/L 2F5/2G5) | 5.2 | ohms | cold |
| Resistance | Rotor resistance, cold (20 kW) | 5.6 | ohms | cold |
| Resistance | Rotor resistance, cold (20RCA/L 2F7/2G7) | 5.6 | ohms | cold |
| Resistance | Rotor resistance, cold (26 kW) | 6.4 | ohms | cold |
| Resistance | Stator insulation (megohmmeter) | 500 | kOhms minimum | 500 VDC applied |
| Resistance | Stepper motor coil resistance (per half coil) | 38.5 | ohms | |
| Resistance | Stepper motor coil resistance per half coil | 38.5 | ohms | |
| Resistance | Temperature sensor (OTS) resistance at 100 C (212 F) | 180-200 | ohms | 100 C (212 F) |
| Resistance | Temperature sensor (OTS) resistance at 100C (212F) | 180-200 | ohms | 100 C (212 F) |
| Resistance | Temperature sensor (OTS) resistance at 30 C (86 F) | 2100-2400 | ohms | 30 C (86 F) |
| Resistance | Temperature sensor (OTS) resistance at 30C (86F) | 2100-2400 | ohms | 30 C (86 F) |
| Speed | Crank disconnect speed | 750 | RPM (12.5 Hz) | |
| Speed | Engine crank disconnect speed | 750 | RPM | |
| Speed | Engine overspeed shutdown | 115 | % of normal running speed for >0.3 sec | |
| Speed | Engine run speed (60 Hz) | 3600 | RPM | |
| Speed | Engine run speed 60 Hz / 50 Hz | 3600 / 3000 | RPM | |
| Speed | Engine speed high shutdown | 115 | % of normal running speed for >0.3 sec | |
| Speed | Engine speed low shutdown | 85 | % of normal running speed for >3 sec | |
| Speed | Engine underspeed shutdown | 85 | % of normal running speed for >3 sec | |
| Speed | Overspeed shutdown test | 115 | % of rated speed (69 Hz @60 Hz, 58 Hz @50 Hz) | |
| Temperature | Carburetor heater thermostat OFF | 16 ± 3 | C (60 ± 5F) | |
| Temperature | Carburetor heater thermostat ON | 4 ± 4 | C (40 ± 7F) | |
| Temperature | Controller operating temperature | -30 to 70 | C | |
| Temperature | Controller storage temperature | -40 to 85 | C | |
| Temperature | Exhaust gas exiting the enclosure at rated kW | 260 | °C (500°F) | rated kW |
| Temperature | High lube oil temperature shutdown | 325 | F (163 C) | |
| Temperature | High lube oil temperature warning | 300 | F (149 C) | |
| Temperature | Thermostat off temperature | 27 | C (80 F) | |
| Temperature | Thermostat on temperature | 16 | C (60 F) |
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 | API Service Class SG or higher | Use synthetic oil. | |||
| Engine oil | 10W-30 synthetic | Service class SJ or higher | Add 5W-30 or 10W-30 synthetic oil when oil level is low | ||
| Engine oil | 10W-50 extended-life synthetic | 1.9 L (qt.) | Premium oil option, 26 kW models, requires fewer oil changes | ||
| Engine oil | 5W-30 or 10W-30 | API Service Class SG, SH, or SJ synthetic oil | 1.8 L | 14 kW models; capacity 1.8 L (1.9 qt.) | |
| Engine oil | 5W-30 or 10W-30 API Service Class SG, SH, or SJ synthetic | API SG/SH/SJ | 1.8 L (qt.) | 14 kW models | |
| Engine oil | 5W-30 or 10W-30 synthetic | API Service Class SG, SH, or SJ | 1.8 L | 14 kW models | |
| Engine oil | 5W-30 synthetic | Service class SJ or higher | Refer to Oil Matrix chart for oil recommendation based on air temperature | ||
| Engine oil | KOHLER PRO 10W-50 | Service class SJ or higher | All season Kohler PRO 10W-50 is ideal; extends oil/filter change to 300 hours (2 years) with KOHLER PRO extended life oil filter | ||
| Engine oil | Synthetic, API Service Class SG or higher | API SG or higher | Check oil level at or near, not over, full mark on dipstick before operation | ||
| Fuel | LP gas or natural gas | Minimum fuel supply pressure NG: 1.2-2.7 kPa (5-11 in. H2O); LP: 1.7-2.7 kPa (7-11 in. H2O) | |||
| Fuel | LPG | Nominal fuel rating 2500 Btu/ft.3 (93 MJ/m3) | |||
| Fuel | Natural gas | Nominal fuel rating 1000 Btu/ft.3 (37 MJ/m3) | |||
| Fuel | Natural gas or LPG | Field-convertible multi-fuel system; certified for natural gas or propane | |||
| Fuel | natural gas or LPG | Field-convertible multi-fuel system; certified for natural gas or propane |
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
72| Code | Name | Meaning | Severity | Action |
|---|---|---|---|---|
| AC Sens Loss | AC Sens Loss | AC sensing lost in Auto mode; generator output AC sensing lost. Detection begins 10 seconds after crank disconnect. Warning after 1 sec if no output detected after crank disconnect; Shutdown after 3 sec if voltage was present and then lost. | Warning | Contact an authorized dealer for service. |
| AC Sens Loss Shutdown | Loss of AC sensing shutdown | Less than 5% of rated voltage measured on Phase A for 3 seconds in AUTO | Shutdown | Check loose wiring and connections; check all AC leads; troubleshoot alternator |
| AC Sens Loss Shutdwn | Loss of AC sensing shutdown | Controller shut down the generator because there was less than 5% of rated voltage measured on Phase A for 3 seconds, only in AUTO. | Shutdown | Check for loose wiring and connections. Check all AC leads. Troubleshoot alternator. |
| AC Sens Loss Warning | Loss of AC sensing warning | Controller measured less than 5% of rated voltage on Phase A for 1 second, 10 seconds after crank disconnect. | Warning | Check for loose wiring and connections. Check all AC leads. Troubleshoot alternator. |
| Accy PwrOver | Accy PwrOver Warning | Accessory Power Overload. An over current fault (short circuit) on the accessory controller power output. | Warning | Contact an authorized distributor/dealer for service. |
| Accy PwrOver Warning | Accessory Power Overload Warning | An over current fault (short circuit) on the accessory controller power output. | Warning | Contact an authorized dealer for service. |
| AccyPwrOver Warning | Accessory Power Overload | Overcurrent fault (short circuit) on the accessory controller power output | Warning | Check wiring to RBUS accessories; troubleshoot RBUS accessories |
| Advanced Diagnostic | Advanced Diagnostic | Shutdown during the reduced speed portion of an exercise. Event history shows Advanced Diagnostic Active. Engine restarts, runs at full speed for 2 minutes, and stops. Controller returns to AUTO mode. | Shutdown | If the generator set does not restart and return to AUTO, check for other faults that prevent generator set operation. |
| ATS ComError | ATS Communication Error | ATS communication error. Warning displayed if ATS interface connection is lost. | Warning | Check communication wiring between transfer switch interface board and generator set. |
| ATS ComError Warning | ATS communication error | Controller lost communication with the RXT ATS | Warning | Check connection to ATS module |
| ATS PhaseRot | ATS Phase Rotation | ATS phase rotation mismatch. Transfer switch phase rotation does not match; ATS will not transfer. | Warning | Correct the ATS connection. Refer to the ATS Installation manual, wiring diagrams, and labels on the transfer switch. |
| Aux Input | Auxiliary Input | An optional customer-connected input is closed (digital input from optional PIM). | Shutdown | Check customer-supplied equipment. |
| Aux Input Shutdwn | Auxiliary input shutdown | Digital input for a custom shutdown (AuxiliaryInputShutdown - PIM) was activated (low). | Shutdown | Check customer equipment connected to the PIM module. |
| Batt Chg Flt | Battery Charger Fault | Input to PIM from an external battery charger (not the built-in battery charger). | Warning | Check external battery charger. |
| Battery CrLo | Battery CrLo Warning | Engine starting battery voltage falls below 11 VDC for more than 10 seconds. Inhibited during crank cycle. | Warning | Check battery rating and condition. Check battery charger operation. Charge or replace battery. |
| Battery CrLo Warning | Low Cranking Battery Voltage Warning | Engine starting battery voltage falls below 11 VDC for more than 10 seconds. Inhibited during crank cycle. Clears when battery voltage returns to acceptable level. | Warning | Check the battery rating and condition. Check the battery charger operation. Charge or replace the battery. |
| Battery CRLow Warning | Battery cranking low warning | Battery voltage dropped to 11 VDC or less for 30 seconds or more. | Warning | Check engine starting battery. Check battery charger DC output voltage from RDC2. |
| Battery High | Battery High | Engine starting battery voltage rises above 16 VDC for more than 10 seconds (inhibited during crank) | Warning | Check battery rating/condition and charger operation |
| Battery High Warning | Battery high warning | Battery voltage above the high warning setting for 10 seconds or more. | Warning | Check engine starting battery. |
| Battery Low Warning | Battery low warning | Battery voltage below the low warning setting for 90 seconds or more. | Warning | Check engine starting battery. Check battery charger DC output voltage from RDC2. |
| Battery Voltage High | Battery Voltage High | Engine starting battery voltage rises above 16 VDC for more than 10 seconds. Inhibited during crank cycle. Clears when voltage returns to acceptable level. | Warning | Check the battery rating and condition. Check the battery charger operation. |
| Battery Voltage Low | Battery Voltage Low | Engine starting battery voltage falls below 12.5 VDC for more than 90 seconds when engine not running. Not operative during crank cycle. Clears when voltage returns to acceptable level. | Warning | Check the battery rating and condition. Check the battery charger operation. Charge or replace the battery. |
| Chk DateTime Warning | Check Date and Time Warning | DC power to controller interrupted and date/time may not be correct | Warning | Verify time and date settings |
| Current A High Warning | Over Current | Paralleling protective relay warning; over current while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Default Pars Warning | Default Parameters Warning | Controller has been loaded with default parameters | Warning | Configure settings as required for desired operation |
| Emerg Stop Shutdwn | Emergency stop shutdown | Optional emergency stop button pressed or emergency stop leads ESS and/or ESN are not connected. | Shutdown | Reset the emergency stop button and clear the fault; check ESS and ESN connections; if no E-stop, connect ESS and ESN together. |
| Eng Speed High | Eng Speed High | Engine speed exceeds 115% of normal running speed for more than 0.3 seconds | Shutdown | Contact an authorized distributor/dealer for service |
| Eng Speed Low | Eng Speed Low | Engine speed drops below 85% of normal running speed for more than 3 seconds | Shutdown | Reduce the load; on 20RCA/RCAL check enclosure thermostat; contact dealer if it persists |
| Engine M/N Invalid Shutdwn | Engine model number invalid shutdown | Generator model number has not been entered. | Shutdown | Enter the generator set model number from the RDC2 keypad, or use SiteTech to select the genset model number. |
| Engine Speed High | Engine Speed High | Engine speed exceeds 115% of the normal running speed for more than 0.3 seconds. | Shutdown | Contact an authorized dealer for service. |
| Engine Speed High Shutdwn | Engine speed high shutdown | Engine speed, calculated from AC frequency, was above the high speed setting for 0.3 seconds or more. | Shutdown | Troubleshoot engine operation per the engine service manual. |
| Engine Speed Low | Engine Speed Low | Engine speed drops below 85% of the normal running speed for more than 3 seconds. | Shutdown | Reduce the load. Check enclosure thermostat and reset if tripped. Contact an authorized dealer for service. |
| Engine Speed Low Shutdwn | Engine speed low shutdown | Engine speed below the low speed setting for 3 seconds or more after crank disconnect; enclosure thermostat may have tripped. | Shutdown | Troubleshoot engine per engine service manual. Check for high enclosure temperatures and reset the thermostat. |
| Exer Not Sch | Exercise Not Scheduled | No exercise is scheduled on the controller. | Warning | See the Setting the Exerciser section for instructions to set the exerciser. |
| Frequency High | Frequency High | Governed frequency exceeds 110% of the system's frequency setpoint for more than 10 seconds. Active 10 seconds after engine start. | Shutdown | Contact an authorized dealer for service. |
| Frequency High Shutdwn | Frequency high shutdown | Frequency measured on Phase A exceeded the high frequency setting for 10 seconds, 10 seconds or more after crank disconnect. | Shutdown | Troubleshoot engine operation per the engine service manual. |
| Frequency High Warning | Over Frequency | Paralleling protective relay warning; over frequency while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Frequency Low | Frequency Low | Governed frequency falls below 90% of the system frequency setting for more than 10 seconds, or 1 Hz below setting for more than 60 seconds. Active 10 seconds after engine start. | Shutdown | Reduce the load and restart the generator set. Check enclosure thermostat and reset if tripped. Contact an authorized dealer for service. |
| Frequency Low Shutdwn | Frequency low shutdown | Frequency on Phase A was less than the low limit for 10 seconds, or 10 Hz or more less than rated for 60 seconds or more. | Shutdown | Troubleshoot engine per engine service manual. Check for high enclosure temperatures and reset the thermostat. |
| Frequency Low Warning | Under Frequency | Paralleling protective relay warning; under frequency while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Fuel Leak Shutdwn | Fuel Leak Shutdown | Digital input for Fuel Tank Leak Shutdown (PIM) activated (low) | Shutdown | Check customer equipment connected to the PIM module |
| Fuel Level Low Shutdwn | Fuel Level Low Shutdown | Digital input for Low Fuel Level Shutdown (PIM) activated (low) | Shutdown | Check customer equipment connected to the PIM module |
| GenBrkerOpen Warning | Generator Circuit Breaker Open | Voltage at generator set but none measured on emergency side of ATS (RXT required) | Warning | Check line circuit breaker; correct short circuits or overloading before resetting |
| Ground Fault Warning | Ground Fault Warning | Digital input for Ground Fault Warning (PIM) active (low) | Warning | Check customer equipment connected to the PIM module |
| High Lube Oil Temperature Shutdown | High lube oil temperature shutdown | Oil temperature higher than 325 F (163 C). | Shutdown | See Overheats in the troubleshooting charts in Section 5.14. |
| High Lube Oil Temperature Warning | High lube oil temperature warning | Oil temperature higher than 300 F (149 C). | Warning | See Overheats in the troubleshooting charts in Section 5.14. |
| Lo Crank Vlt | Low Cranking Voltage | Battery voltage dropped below 3.5 VDC during engine cranking. | Warning | Charge or replace the battery. |
| Lo Crank Vlt Warning | Low cranking voltage warning | During cranking, battery voltage measured less than 60% (7.2V or 14.4V) for 6 seconds or more. | Warning | Check cranking battery. |
| Locked Rotor | Locked Rotor | No engine rotation is sensed during cranking. Shuts down 3 seconds after fault is detected. | Shutdown | Check the battery. Check for loose connections. Contact an authorized dealer for service. |
| Locked Rotor Shutdwn | Locked rotor shutdown | No rotation of the engine or alternator was detected for 3 seconds or more during cranking. | Shutdown | Check cranking circuit. Troubleshoot the engine and alternator. Check alternator connections to controller and auxiliary winding circuit breaker. |
| Low Oil Level or Oil Pressure | Low Oil Level or Oil Pressure | Oil level switch on the 26 kW indicates low oil level. LOP switch indicates low oil pressure for more than 5 seconds. Active 30 seconds after crank disconnect. Does not protect against low oil level. | Shutdown | Check for leaks in the lubrication system. Check the oil level and add oil if low. Check the oil level or oil pressure switch and wiring. If fault persists, do not run the generator set; contact an authorized dealer. |
| MainPwrOverL | Main Power Overload | Main power overload; an over current fault on the controller output (short circuit). | Shutdown | Contact an authorized dealer for service. |
| MainPwrOverL Shutdwn | Main power overload shutdown | Internal current limit circuit tripped, indicating an overcurrent condition on the DC power supply circuit. | Shutdown | Check crank, run, and flash relay circuits for short circuits. |
| Not in Auto | Not in Auto | The generator set is not in Automatic (standby) mode. Remote start and stop commands from a transfer switch or remote switch will be ignored. | Warning | Press AUTO to place the generator set in Automatic mode, when appropriate. |
| Not In Auto Warning | Not in auto warning | The RDC2 controller is not in AUTO; generator will not start from an ATS or remote device. | Warning | Press the Auto button to ensure automatic system operation. |
| Oil Press Low | Oil Pressure Low | The LOP switch indicates low oil pressure for more than 5 seconds. Function becomes active 30 seconds after crank disconnect (30 second inhibit). The low oil pressure shutdown does not protect against low oil level. | Shutdown | Check for leaks in the lubrication system. Check the oil level and add oil if the level is low. Check the oil pressure switch and wiring. If the fault persists, do not run the generator set. Contact an authorized dealer for service. |
| Oil Pressure Low Shutdwn | Low oil pressure shutdown | The low oil pressure switch was closed for 5 seconds or more; inhibited until 30 seconds after crank disconnect. | Shutdown | Check for oil leaks; check oil level and add oil if low; check oil pressure sensor. |
| Oil Pressure OpenCR Warning | Oil pressure open circuit warning | Oil pressure switch closure has not been detected after shutdown. | Warning | Check the oil pressure switch connection. Test the LOP switch. |
| Over Crank | Over Crank | Three unsuccessful starting attempts. | Shutdown | Check the fuel supply, spark plug, and battery. Check for loose connections. Contact an authorized dealer for service. |
| Over Crank Shutdwn | Overcrank shutdown | The engine did not start during the crank cycle (15 second time delay). | Shutdown | Check the alternator, fuel supply, cranking circuit, cranking battery; troubleshoot engine. |
| RBUS ComError Warning | RBUS communication error warning | The controller has lost communication with an RBUS device that had previously been communicating properly. | Warning | Check connection to the RBUS device. |
| Reactive Power Low Warning | Loss of Field | Paralleling protective relay warning; loss of field while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Real Power High Warning | Over Power | Paralleling protective relay warning; over power while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Real Power Low Warning | Reverse Power | Paralleling protective relay warning; reverse power while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Spd Sens Flt | Speed Sensor Fault | Engine speed sensor has failed or engine stalled. | Shutdown | Contact an authorized dealer for service. |
| Spd Sens Flt Shutdwn | Speed sensor fault shutdown | The speed signal was lost; also occurs if the engine stalls. | Shutdown | Check leads 55, 66, F+, and F- between the alternator and the controller; check the engine. |
| Voltage L1-L2 High Warning | Over Voltage | Paralleling protective relay warning; over voltage while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Voltage L1-L2 Low Warning | Under Voltage | Paralleling protective relay warning; under voltage while paralleled. | Warning | Press AUTO or OFF. Pressing OFF will stop the generator set. |
| Volts L1-L2 (AB) High Shutdwn | Voltage L1-L2 high shutdown | Voltage from Phase A to Phase B exceeded the high limit for longer than the 2 second delay setting. | Shutdown | Troubleshoot alternator. |
| Volts L1-L2 (AB) Low Shutdwn | Voltage L1-L2 low shutdown | Voltage from Phase A to Phase B was greater than 5% of rated but less than the low voltage setting for longer than the 10 second delay; enclosure thermostat may have tripped. | Shutdown | Troubleshoot alternator. Check for high enclosure temperatures and reset the thermostat. |
| Volts L1-L2 High | Generator Voltage High | Output voltage exceeds 120% of the system nominal voltage for more than 2 seconds. | Shutdown | Contact an authorized dealer for service. |
| Volts L1-L2 Low | Generator Voltage Low | Output voltage falls below 80% of the nominal system voltage for more than 10 seconds. | Shutdown | Reduce the load and restart the generator set. Check enclosure thermostat and reset if tripped. Contact an authorized dealer for service. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Fuel Selection, Revised Fuel System adjustment
⚠ Explosive fuel vapors. Can cause severe injury or death.
- Press the OFF button on the generator set controller.
- Disconnect utility power to the generator set.
- Disconnect the engine starting battery, negative lead first.
- Turn off the fuel supply.
- For natural gas, turn the selection knob fully clockwise to line up with the UP arrow.
- For LPG, turn the selection knob counterclockwise approximately 1/4 turn.
- Locate ignition timing leads 65 and N3 near the regulator.
- For natural gas, connect lead 65 to lead N3.
- For LPG, disconnect lead 65 from lead N3.
- Connect and turn on the fuel supply matching the fuel setting.
- Reconnect the engine starting battery, negative lead last.
- Reconnect utility power.
- Change the fuel type setting on the RDC2 controller in the Genset System menu.
- Start the generator set by pressing RUN.
- Check for leaks with a gas leak detector, run the set, and press OFF to shut down.
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 Calibration Using RDC2 Keypad adjustment
Tools: Digital voltmeter
- With set off, connect DVM to measure output voltage L1-L2 (AC volts).
- Press RUN to start generator set.
- Press Select, navigate to Generator Metering menu.
- Press Select to display Volts L1-L2; compare with voltmeter.
- If incorrect, press Select (flashes), adjust with arrows, press Select to save.
- Wait 30-60 seconds for voltmeter reading to stabilize.
- For three-phase, repeat for L2-L3 and L3-L1.
- Press OFF to stop generator set.
Checking the Fuel Pressure at the Regulator diagnostic
Tools: Manometer capable of measuring 3-11 inches water column
- Remove the plug from the fuel pressure port.
- Connect a manometer capable of measuring low pressures (3-11 inches water column) to the pressure port.
- When finished, replace the plug in the pressure port and check for leaks.
Controller Fault Reset diagnostic
⚠ Identify and correct cause before resetting
- While fault message is displayed, press Select to go to Overview menu.
- Press Select again; active fault message is displayed.
- Press Select; Confirm Clear Fault: NO is displayed.
- Press Up arrow; Confirm Clear Fault: YES is displayed.
- Press Select to enter YES and clear fault.
- Press Select to return to Overview menu; controller changes to OFF mode.
- Press AUTO to put generator set into automatic mode.
Governor System Operation Test diagnostic
⚠ Hazardous voltage. Moving parts.
Tools: Ohmmeter
- Verify carburetor throttle linkage is connected to stepper motor.
- Check for broken or loose wiring or plug connections.
- Check stepper motor operation at startup (open then closed position).
- Open circuit breaker, disconnect starting battery, shut off fuel supply.
- Disconnect stepper motor plug P6 to access terminals.
- Check coil resistance across pins 2-3 and pins 1-4.
- Inspect linkage and bushings; replace as necessary.
- Disconnect linkage; verify free full range of motion.
Resetting the Controller After a Fault Shutdown diagnostic
⚠ Always identify and correct cause of fault before resetting
- Press Select to go to Overview menu while fault message is displayed
- Press Select again to show active fault message
- Press Select; 'Confirm Clear Fault: NO' displayed
- Press UP arrow; 'Confirm Clear Fault: YES' displayed
- Press Select to clear fault
- Press Select to return to overview menu; controller changes to OFF mode
- Press AUTO to place generator set in automatic mode
Separate Excitation diagnostic
⚠ Hazardous voltage. Moving parts.
Tools: DC ammeter, 10-amp fuse, 12-volt automotive battery
- Disconnect black FN and FP leads at brush holder terminals.
- Connect DC ammeter, 10-amp fuse, and 12-volt battery to FP/FN brush leads.
- Start engine; verify ammeter reading remains stable.
- Check AC output across stator leads; compare to specifications.
- If rotor and stator good, check wiring, fuses, controller settings.
Separate Excitation Procedure diagnostic
⚠ Hazardous voltage. Operate the generator set only when all guards and electrical enclosures are in place.
Tools: DC ammeter, 10-amp fuse, 12-volt automotive battery
- Disconnect the black FN and FP leads from the alternator at the brush holder terminals.
- Connect a DC ammeter, 10-amp fuse, and a 12-volt automotive battery to the FP and FN brush leads.
- Note and record the ammeter reading.
- Start the engine and check that the ammeter reading remains stable.
- An increasing reading indicates a shorted rotor; a decreasing reading suggests a running open.
- Check for AC output across the stator leads and compare to Section 1 specifications.
- If rotor and stator are good, check the wiring, fuses, and controller settings and connections.
Test Low Oil Pressure (LOP) Switch diagnostic
Tools: Ohmmeter or continuity tester, Oil pressure gauge
- Press OFF to stop engine.
- Disconnect lead 13 from the switch.
- Use ohmmeter/continuity tester to verify switch is closed (grounded).
- Start engine and verify switch opens after a few seconds.
- If not operating, remove LOP switch, install oil pressure gauge.
- Start and run generator set.
- Verify oil pressure within specified range before replacing LOP switch.
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 |
|---|---|---|---|---|
| 12-volt engine electrical system, single starter motor, negative ground | Battery negative to ground terminal on or near starter motor; battery positive to positive terminal on starter solenoid | All generator set models use a negative ground with a 12-volt engine electrical system | ||
| Engine start connection for non-RXT transfer switch or remote start/stop switch | Terminals 3 and 4 on generator set terminal block | Route engine start leads through separate conduit from AC power and load leads | ||
| RXT transfer switch to generator set terminal block A, B, PWR, COM | P10-1 through P10-4 (transfer switch) to A, B, PWR, COM (generator set) | Terminal block connections 3 and 4 not used with Model RXT ATS | ||
| 1 | Single-phase leads 1-2, 3-4 | 1, 2, 3, 4 | 4-lead generator sets are not reconnectable | |
| 3 | Three-phase leads 1-4, 2-5, 3-6, 7-10, 8-11, 9-12 | 1-12 | 12-lead generator sets are reconnectable to voltages shown on the generator set specification sheet | |
| Single Phase | 12-volt engine electrical system, single starter motor | Positive to starter solenoid; negative to ground on or near starter motor | Negative ground; follow polarity markings | |
| Single Phase | 4-lead/12-lead reconnection per 12-Lead Generator Reconnection diagram (Figure 27) | Single-phase leads 1-2, 3-4; sensing leads 11-44 | 4-lead generators are not reconnectable; 12-lead three-phase reconnectable to voltages shown on spec sheet | |
| Three Phase | 12-lead reconnection per Figure 27 | Leads 1-4, 2-5, 3-6, 7-10, 8-11, 9-12; sensing leads V7, V8, V9 | Also route leads through current transformers (CTs) and change controller voltage setting; replace line circuit breaker for new voltage | |
| 100/200 | 1 | Single | ||
| 100/200 | 3 | Delta | ||
| 110/220 | 1 | Single | ||
| 110/220 | 3 | Delta | ||
| 115/230 | 1 | Single | ||
| 12 VDC | Single starter motor, negative ground engine electrical system | Positive (+) to starter solenoid terminal; negative (-) to ground terminal on or near starter motor | Remove negative lead first when disconnecting, reconnect negative lead last | |
| 120 | 1 | Single | Genset System Voltage/Frequency/Phase table for controller setup | |
| 120/208 | 3 | Wye | Voltage configuration (Figure 4-12) | |
| 120/208, 120/240, 277/480 | 3 | 3-phase 2G7 | 12 | |
| 120/240 | 1 | Single | Voltage configuration (Figure 4-12) | |
| 120/240 | 1 | Single phase 2F7 | 4 | |
| 120/240 | 3 | Delta | Voltage configuration (Figure 4-12) | |
| 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 | Voltage configuration (Figure 4-12) |
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 is the power rating of the Kohler 20RCA?
The Kohler 20RCA is rated 20 kW standby (20.0 kVA).
Which engine powers the Kohler 20RCA?
The Kohler 20RCA is powered by the Kohler CH740 / CH1000 / CH1006 engine.
What fuel does the Kohler 20RCA use?
The Kohler 20RCA runs on Natural Gas/LPG.
What is the oil capacity of the Kohler 20RCA?
The Kohler 20RCA has an engine oil capacity of 1.9 liters (2.0 US quarts), per the manufacturer specification sheet.
What is the sound level of the Kohler 20RCA?
The Kohler 20RCA is rated at 64.0 dBA at 7 m, per the manufacturer specification sheet.
How much does the Kohler 20RCA weigh?
The Kohler 20RCA has a dry weight of 252 kg (555 lb).
What voltages is the Kohler 20RCA available in?
The Kohler 20RCA is offered in 12 V, 1-phase.
What battery does the Kohler 20RCA use?
The Kohler 20RCA uses 1 battery, 12 V each, [500] CCA, group ['51'], per the manufacturer specification sheet. The starting system is 12 V DC.
What alternator comes on the Kohler 20RCA?
The Kohler 20RCA uses a PowerBoost™ alternator.
Which oil filter part number does the Kohler 20RCA take?
The Kohler 20RCA uses oil filter part number 52 050 02-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. See the Service Views section |
| The generator set does not crank | Battery weak or dead | Recharge or replace the battery. Make sure that the AC power to the generator set controller is backed up by the generator set |
| The generator set does not crank | Battery connections reversed or poor | Check the connections |
| The generator set does not crank | Emergency stop switch activated | Verify that it is safe to start the engine and apply load. Then reset the stop switch or engine shutdown switch |
| The generator set does not crank | Fault shutdown | Check the controller display for fault messages. Correct the fault condition and reset the controller |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Kohler 20RCA troubleshooting guide (288 entries) →
Repair guides
39- 12-Lead Generator Reconnection Procedure
- Access the Air Intake Area
- Air Cleaner Service
- Air Cleaner Service, 14 kW Models
- Air Cleaner Service, 14 kW Models
- Air Cleaner Service, 18/20 kW Models
- Air Cleaner Service, 20 kW Models
- Air Cleaner Service, 20/26 kW Models
- Battery Cleaning
- Checking Electrolyte Level
- Checking Specific Gravity
- Checking the Fuel Pressure at the Regulator
- Checking the OnCue Plus Network Connection
- Controller Fault Reset
- Field Connections
- Fuel Conversion from Natural Gas to LPG, 14RCA/RCAL
- Fuel Conversion from NG to LPG, 14RCA/L (Original Fuel System)
- Fuel Selection, Revised Fuel System
- Fuel Selection, Revised Fuel System, 14/20/26RCA/L
- Generator Reconnection (12-Lead Three-Phase)
Step-by-step procedures compiled from the Kohler service manual for this model.
Parts
250| Part # | Description | Qty | System | |
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| 193-0480 | Sensor, Manifold Air Temperature | 1 | Sensor | Amazon eBay |
| 24 590 01-A | Oil Cooler, 14RCA/L | Oil cooler | buy | |
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| 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 |
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 |
|---|---|---|---|
| Standby | 25% | 3.6 | 1.7 |
| Standby | 50% | 4.6 | 2.3 |
| Standby | 75% | 6.9 | 3.1 |
| Standby | 100% | 8.0 | 3.9 |
Available documents
Spec sheet (Kohler)Spec sheet — 20-kW-Kohler-Generator-RCAL-Spec-Sheet (Kohler)Spec sheet — 6495737 (Kohler)Spec sheet — Kohler 20RCA g4272 (Kohler)Spec sheet — g4272 (Kohler)Operator's manual (Kohler)Operator's manual — 14 20 RCA Operators (Kohler)Operator's manual — Kohler 20 RCA user manual (Kohler)Reference (Kohler)Reference — 21-03R Air-Cooled Residential Product Updates - 2021 (Kohler)Reference — ReferralRebateForm Editable1 (Kohler)Reference — Rotor Stator Reading Form (Kohler)Reference — g6130 (Kohler)Reference — pb167 Ch1000 Rear Main (Kohler)Owner's manual — TP-7092 (Kohler)Owner's manual — TP-7093 (Kohler)Owner's manual — tp7093 (Kohler)Parts manual (Kohler)Parts manual — 14RCAL-Generator-Parts-Catalog (Kohler)Parts manual — Kohler 2019 RES Consumer Referral Rebate (Kohler)Parts manual — pb165 Updated Stator (Kohler)Parts manual — tp7091 (Kohler)Service manual (Kohler)Service manual — 02a9ba2b-6e2d-4c5a-98a2-5b321441a097 (Kohler)Service manual — 14-20-26-rca-rcal-service-manual (Kohler)Service manual — 2a9cc7 (Kohler)Service manual — 2df41c7a-2033-4b77-b26f-ce20ecb67e5e (Kohler)Service manual — 62673233 (Kohler)Service manual — Controllers tt1589 (Kohler)Service manual — PDF-RCA How Do I Change Oil and Filter (Kohler)Service manual — PDF-tp7092 (Kohler)Service manual — TP-7091 (Kohler)Service manual — TT-1482 (Kohler)Service manual — TT-1773 (Kohler)Service manual — kohler-power-systems-26rca-qs200-installation-sheet (Kohler)Service manual — tt1569 (Kohler)Service manual — tt1619 (Kohler)Service manual — tt1709 (Kohler)
This page was generated from the 38 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.
