Service parts for the GT-530
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredIgnition
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
Ratings spec sheet not in our library yet — see the documents below.
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | 087769 | 250 hr | Amazon $16.88 eBay | ||
| Fuel filter | 0D9723 | 400 hr | Amazon $11.39 eBay $16.85 | ||
| Oil filter | Change Engine Oil/Filter | 0D4511 | 400 hr | Amazon $9.99 eBay $39.99 FridayParts $34.99 | |
| Battery | Group 26R, 12 Volts and 350 CCA Minimum (8 kW); 525 CCA Minimum (10-20 kW) | — | 21 hr | ||
| Belt | Replace as Necessary | — | 21 hr | ||
| Coolant | — | 21 hr | |||
| Coolant filter | Inspect | — | 180 hr | ||
| Oil | 2.0 Qts | — | 400 hr | ||
| Spark plug | 0.76 mm (0.030 inch) gap | RC14YC | 200 hr | Amazon $14.66 eBay $10.00 |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Service intervals
28| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Engine oil level | Check | 8 hr | Check at least every eight hours of operation or before use | |
| Oil level | Check | 24 hr | 1 mo | Monthly or every 24 hours of continuous operation |
| Spark arrestor | Clean | 50 hr | 12 mo | Inspect and clean every 50 hours or once each year, whichever comes first |
| Air pre-filter (foam precleaner) | Clean | 100 hr | 3 mo | Every three months or every 100 hours, whichever occurs first |
| Engine oil | Change | 100 hr | First service — Change after first 25 hours, then every 100 hours | |
| Spark plugs | Inspect | 100 hr | Clean and reset gap every 100 hours | |
| Air cleaner | Inspect | 200 hr | 24 mo | 2Y or 200 hours |
| Air cleaner | Replace | 500 hr | 24 mo | Every 2 years or 200 hours |
| Complete tune-up | Other | 500 hr | 24 mo | To be completed by a dealer, every 2 years or 200 hours |
| Oil | Change | 500 hr | 24 mo | Every 2 years or 200 hours; change after first 8 hours then every 200 hrs/2 yrs thereafter, more often under heavy load, dust, or high temp |
| Oil filter | Change | 500 hr | 24 mo | First service — Every 2 years or 200 hours |
| Spark plug(s) | Inspect | 200 hr | 24 mo | 2Y or 200 hours |
| Spark plug(s) | Replace | 500 hr | 24 mo | Every 2 years or 200 hours |
| Paper air filter element | Replace | 250 hr | ||
| Fuel filter | Replace | 400 hr | 12 mo | Once each year or every 400 hours, whichever comes first (gasoline only) |
| Spark plugs | Replace | 500 hr | ||
| Valve clearance | Adjust | 500 hr | 6 mo | First service — After first six months or 500 hours of operation |
| Valve lash | Adjust | 500 hr | First service — 1st 50 hours, then every 500 hours | |
| Alternator rotor brushes | Inspect | 2500 hr | ||
| Battery charge state | Check | 6 mo | Every 6 months | |
| Battery corrosion/dryness | Clean | 1 mo | Monthly | |
| Battery electrolyte level | Check | 6 mo | Every 6 months | |
| Battery state of charge and condition | Test | 6 mo | Every six months with an automotive-type battery hydrometer | |
| Battery terminals | Clean | 1 mo | Remove corrosion, ensure dryness, tighten | |
| Fuel lines and connections | Inspect | 1 mo | Notify dealer if repair needed | |
| General condition (vibration, noise, leakage, temperature) | Inspect | 1 mo | Monthly | |
| Valve clearance | Check | 6 mo | First service — First 6 months of operation | |
| Vibration, noise, leakage, temperature | Inspect | 1 mo | Monthly; notify dealer if repair needed |
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 |
|---|---|---|---|---|
| Clearance | Exhaust system to combustible material | 3 | inch | |
| Gap | Ignition magneto air gap | 0.008-0.012 inch (0.20-0.30 mm) | gap | V-twin engines; fixed non-adjustable on single cylinder |
| Gap | Spark plug gap | 0.030 | inch | 8, 10 & 20kW |
| Gap | Spark plug gap | 0.040 | inch | 12, 14, 16 & 17kW |
| Gap | Spark plug gap | 0.76 | mm | 8, 10 & 20kW |
| Gap | Spark plug gap | 0.76 mm (0.030 inch) | gap | 410 cc and 530 cc engines |
| Gap | Spark plug gap | 1.02 | mm | 12, 14, 16 & 17kW |
| Gap | Spark plug gap | 1.02 mm (0.040 inch) | gap | 990 cc and 999 cc engines |
| Other | Compression Ratio GH-410 | 8.6:1 | ||
| Other | Compression Ratio GT-530 | 9.5:1 | ||
| Other | Compression Ratio GT-990 | 9.5:1 | ||
| Other | Compression Ratio GT-999 | 9.5:1 | ||
| Other | Compression ratio | 8.6 to 1 | ||
| Other | Compression ratio | 9.5:1 | ||
| Other | LP fuel supply pressure | 10 to 12 | inches water column (0.36-0.43 psi) | |
| Other | Rated Horsepower @ 3,600 rpm GH-410 | 14.8 | HP | |
| Other | Rated Horsepower @ 3,600 rpm GT-530 | 18 | HP | |
| Other | Rated Horsepower @ 3,600 rpm GT-990 | 32 | HP | |
| Other | Rated Horsepower @ 3,600 rpm GT-999 | 36 | HP | |
| Other | Starter motor performance, V-twin | Minimum rpm 3250; Maximum Amps 62 | ||
| Other | Starter motor performance, single cylinder | Minimum rpm 4500; Maximum Amps 9 | ||
| Other | Under-frequency shutdown | below 55 Hz for more than 30 seconds | Hz | |
| Pressure | Cylinder leak down tester regulated pressure | 80 | psi | air source at least 90 psi |
| Pressure | Fuel pressure LP | 10 to 12 | inches water column | required |
| Pressure | Fuel pressure natural gas | 5 to 7 | inches water column | required |
| Pressure | Fuel pressure, LP vapor | 10-12 | inches water column | at fuel inlet |
| Pressure | Fuel pressure, natural gas | 5-7 | inches water column | at fuel inlet |
| Pressure | LP fuel pressure required | 10 to 12 | inches water column (0.36-0.43 psi) | |
| Pressure | LP fuel system leak test pressure | 90 | psi | |
| Pressure | LP gas pressure at inlet to gaseous fuel solenoid and secondary regulator | 11 | inches water column | |
| Pressure | LP primary regulator maximum outlet pressure | 14 | inches water column | do not exceed |
| Pressure | Low oil pressure shutdown | 5 | PSI range | |
| Pressure | Minimum compression, single cylinder engine | 60 | psi | cold |
| Pressure | Natural gas fuel pressure required | 5 to 7 | inches water column (0.18-0.25 psi) | |
| Pressure | Normal engine oil pressure | 35-40 | psi | engine running |
| Pressure | Oil pressure switch | 10 | psi | V-twin engines |
| Pressure | Oil pressure switch | 8 | psi | single cylinder engines |
| Resistance | Choke solenoid coil resistance | 3.7 | ohms | |
| Resistance | Fuel Solenoid FS1 nominal resistance | 27-33 | ohms | |
| Resistance | Fuel Solenoid FS2 nominal resistance | 29 | ohms | |
| Resistance | Ignition magneto primary winding | 300K ±10K | ohms | both coils in parallel |
| Resistance | Ignition magneto secondary winding | 14K ±3 | ohms | both coils in parallel |
| Resistance | Standby/utility closing coil nominal resistance | 1-2 | megohms | |
| Resistance | Transfer relay coil resistance | 115 | ohms | nominal; another listing states 120 Ohms |
| Resistance | Wire 18 continuity reading | 275K-325K | ohms | to frame ground at J1-4 |
| Speed | Engine governor speed | 2200 | rpm | |
| Speed | Engine governor speed | 2571 | rpm | |
| Speed | Frequency | 60-62 | Hertz | no-load |
| Speed | Generator frequency | 61-63 | Hz | 7kW, across transfer switch terminal lugs E1 and E2 |
| Speed | Generator frequency | greater than 58 | Hz | 7kW natural gas fuel regulator adjustment |
| Speed | Low Speed Exercise RPM | 2,400 | RPM | 15 and 20kW units |
| Speed | No-load frequency, V-Twin units | 60 | Hertz | at no-load |
| Speed | No-load frequency, single cylinder units | 62-63 | Hertz | at no-load |
| Speed | Operating RPM | 3600 | RPM | |
| Speed | Operating rpm | 3,600 | rpm | |
| Speed | Overspeed shutdown | 3000 for 3 seconds, or 3300 immediately | RPM | |
| Speed | Overspeed shutdown threshold | 72 | Hz (4320 rpm) | |
| Speed | Rated AC frequency | 59.5-60.5 | Hz | |
| Speed | Rated horsepower | 27 | hp | at 3600 rpm |
| Speed | Rated rotor speed | 3600 | rpm |
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 | 10W-30 | API SJ, SL or better | Between 40°F and -10°F | ||
| Engine oil | SAE 30 | API SJ, SL or better | Above 32°F | ||
| Engine oil | SAE 30 above 32°F; 10W-30 between 40°F and -10°F; Synthetic 5W-30 10°F and below | API Service Class SJ, SL or better; use no special additives | 1.5 Qts | Oil capacity including filter | |
| Engine oil | SAE 30 or SAE 10W-30 | API SF, SG, SH or SJ | During summer months (40 deg. F and higher). DO NOT USE SAE 10W-40. DO NOT use special additives. | ||
| Engine oil | SAE 5W-30 or SAE 5W-20 | API SF, SG, SH or SJ | During winter months (40 deg. F to -20 deg. F) | ||
| Engine oil | Synthetic 5W-30 | API SJ, SL or better | 10°F and below | ||
| Fuel | LP gas (vapor withdrawal only) | Recommended minimum gas flow rate for air-cooled generators is 67 cubic feet per hour | |||
| Fuel | LP vapor only | Minimum 2,520 Btu per cubic foot | Required fuel pressure 10-12 inches water column (0.36-0.43 psi) | ||
| Fuel | Liquid Propane (LP) Vapor | Btu content at least 2,520 Btus per cubic foot; pressure 10-12 inches water column (0.36-0.43 psi) | Use vapor withdrawal system only | ||
| Fuel | Natural Gas | Btu content at least 1,000 Btus per cubic foot; pressure 5-7 inches water column (0.18-0.25 psi) | |||
| Fuel | Natural gas (min 1,000 Btu/cu ft) or LP vapor (min 2,520 Btu/cu ft) | Factory set to run on natural gas; reconfigurable to LP | |||
| Fuel | Natural gas or LP gas (vapor withdrawal only for LP) | Natural gas Btu content at least 1,000 Btus per cubic foot; LP gas at least 2,520 Btus per cubic foot | Required fuel pressure: NG 5 to 7 inches water column; LP 10 to 12 inches water column. NFPA 54 for natural gas, NFPA 58 for liquid propane. | ||
| Fuel | Unleaded gasoline (high quality); leaded REGULAR grade is an acceptable substitute | max 10 percent ethanol if alcohol present; DO NOT use methanol | Remove alcohol-containing fuel during storage |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
12Adjusting GT-530 Valve Clearance adjustment
⚠ Contact dealer if uncomfortable performing this procedure or lacking proper tools
Tools: 10mm allen wrench, Feeler gauge, Torque wrench
- Remove spark plug wires and spark plugs
- Rotate the flywheel clockwise to bring the piston to Top Dead Center of compression stroke
- Remove the four valve cover screws and the valve cover
- Loosen the rocker jam nut and turn the pivot ball stud while checking clearance with a feeler gauge
- Set clearance to 0.002-0.004 inch (0.05-0.1 mm) and hold pivot stud while tightening jam nut to 174 in/lbs
- Recheck clearance after tightening
- Install a new valve cover gasket and reattach the valve cover
- Reinstall spark plugs and reattach spark plug wires
Adjusting GT-530/990/999 Valve Clearance adjustment
⚠ Check after first six months of operation
Tools: 10mm allen wrench, feeler gauge, torque wrench
- Engine should be cool before checking
- Remove spark plug wires and spark plugs
- Rotate flywheel nut clockwise to bring piston to TDC of compression stroke
- Ensure engine is at 60-80°F
- Remove the four screws attaching the valve cover
- Loosen rocker jam nut, turn pivot ball stud with 10mm allen wrench while checking clearance with feeler gauge
- Set clearance to 0.002-0.004 inch (0.05-0.1mm)
- Tighten rocker arm jam nut to 174 in/lbs torque while holding pivot ball stud
- Recheck valve clearance
- Install new valve cover gasket and re-attach valve cover
- Install spark plugs and re-attach wires
- Repeat for other cylinder
Adjusting Magneto Flywheel Gap adjustment
⚠ Air gap between ignition magneto and flywheel on single cylinder engines is not adjustable.
Tools: 0.008-0.012 inch thickness gauge
- Rotate the flywheel until the magnet is under the module (armature) laminations.
- Place a 0.008-0.012 inch (0.20-0.30mm) thickness gauge between flywheel magnet and module laminations.
- Loosen the mounting screws and let the magnet pull the magneto down against the thickness gauge.
- Tighten both mounting screws.
- To remove the thickness gauge, rotate the flywheel.
- Repeat the above procedure for the second magneto.
Adjusting Valve Clearance adjustment
⚠ Hold rocker arm jam nut in place as pivot ball stud is turned.
Tools: 10mm allen wrench, feeler gauge, socket wrench
- Engine should be cool before checking.
- Remove spark plug wires and position away from plugs.
- Remove spark plugs.
- Position piston at Top Dead Center (TDC) of compression stroke.
- Remove four screws attaching valve cover.
- Loosen rocker jam nut.
- Turn pivot ball stud with 10mm allen wrench while checking clearance.
- Tighten jam nut to 174 in/lbs torque and recheck clearance.
Adjusting the Fuel Regulator - 7kW (Natural Gas Only) adjustment
⚠ Do not make any unnecessary adjustments. Factory settings are correct for most applications.
Tools: frequency meter
- Start the generator; let it stabilize and warm up at no-load.
- Connect a frequency meter across the generator's AC output leads.
- Turn the primary adjust screw to obtain a frequency reading.
Check and Adjust Engine Governor (Single Cylinder Units) adjustment
Tools: Frequency meter, torque wrench
- Loosen the governor clamp bolt.
- Hold the governor lever at wide open throttle position.
- Rotate the governor shaft clockwise as far as it will go.
- Tighten the governor lever clamp bolt to 70 inch-pounds (8 N-m).
- Start the generator; let it stabilize and warm up at no-load.
- Connect a frequency meter across the generator AC output leads.
- Turn the primary adjust screw to obtain a frequency of 61.5 Hz.
- Turn the secondary adjust screw to obtain a frequency of 62.5 Hz.
Check and Adjust Valves adjustment
Tools: 10mm allen wrench, flat feeler gauge, torque wrench
- Remove the four (4) screws from the rocker cover.
- Remove the rocker cover and rocker cover gasket.
- Loosen the rocker arm jam nut.
- Use a 10mm allen wrench to turn the pivot ball stud.
- Check clearance between rocker arm and valve stem with a flat feeler gauge.
- Set valve clearance to 0.05-0.1mm (0.002-0.004 in.) cold.
- Hold pivot ball stud with allen wrench and tighten rocker arm jam nut to 174 inch pounds.
- Recheck valve clearance to make sure it did not change.
- Re-install rocker cover gasket, rocker cover and the four screws.
Reconfiguring the Fuel System (8kW) adjustment
⚠ Gaseous fuels are highly explosive. No leakage permitted.
Tools: plastic T-handle fuel selector
- Turn off main gas supply.
- Open roof and remove door.
- Remove battery if installed.
- Insert T-handle pin into selector knob hole.
- Pull out to overcome spring pressure, twist clockwise 90 degrees.
- Allow selector to return once aligned with LP position.
- Save tool with Owner's Manual.
- Install battery, door, close roof; reverse to convert back.
Reconfiguring the Fuel System (NG to LP) adjustment
⚠ Primary LP regulator not included; must supply 10-12 in water column fuel pressure
- Open the roof
- For 10kW: loosen clamp and slide back air inlet hose
- Slide fuel selector on carburetor out towards back of enclosure
- Return inlet hose and tighten clamp
- For 15/20kW: remove air cleaner cover
- Slide selector lever out towards back of enclosure
- Return air cleaner cover and tighten thumb screws
- Close the roof
- Reverse the procedure to convert back to natural gas
Reconfiguring the Fuel System (V-twin) adjustment
⚠ Gaseous fuels are highly explosive. No leakage permitted.
- Open roof.
- For 10kW: loosen clamp, slide back air inlet hose.
- Slide fuel selector on carburetor out towards back of enclosure.
- Return inlet hose and tighten clamp securely.
- For 12-20kW: remove air cleaner cover.
- Slide selector lever out towards back of enclosure.
- Return air cleaner cover and tighten two thumb screws.
- Close roof; reverse to convert back.
Spark Plug Gap Adjustment adjustment
Tools: wire feeler gauge
- Check the spark plug gap using a wire feeler gauge.
- Adjust the gap by carefully bending the ground electrode.
Electrical Checks diagnostic
⚠ Transfer switch is electrically hot during test - risk of fatal shock
Tools: AC voltmeter, frequency meter
- Set main circuit breaker OFF
- Set AUTO/OFF/MANUAL switch OFF
- Turn OFF all breakers on load center (T1, T2)
- Turn ON utility power to transfer switch
- Check utility voltage across N1/N2 (should be 240VAC) and N1/N2 to neutral (120VAC)
- Turn OFF utility power
- Set switch to MANUAL; engine should crank and start
- Let engine warm up 5 minutes then close main breaker
- Check voltage across E1/E2 (240-244V at 59.5-60.5Hz) and E1/E2 to neutral (120-122V)
- Set main breaker OFF, let engine run at no-load, then set switch OFF
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 |
|---|---|---|---|---|
| Control system interconnections | N1, N2, 0, 15B, 23 | Can be run in same conduit as AC power if length < 35 feet and all wiring rated 600V | ||
| 1 | Connect a 2008 and later load center switch to a pre-2008 air-cooled generator: Wire 0 will not be utilized. Remove battery charger from the transfer switch. Connect N1 (BLU) to N1 (YEL), N2 (YEL) to N2 (YEL), 23 (BRN) to 23 (WHT), 194 (ORG) to 15B (RED) using UL approved wire nuts. | N1, N2, 23, 194, 15B, 0 | Battery charger in transfer switch will not be utilized in operation of the generator. | |
| 1 | Connect a pre-2008 load center switch to a current or future air-cooled generator: Wire 0 will not be utilized. Connect N1 (BLU) to N1 (YEL), N2 (YEL) to N2 (YEL), 23 (BRN) to 23 (WHT), 194 (ORG) to 15B (RED) using UL approved wire nuts. | N1, N2, 23, 194, 15B, 0 | Wire 194 changed to 15B on current model air-cooled generators. | |
| 120 | 1 | 120 VAC loads only - line to neutral | T1 (Red) and T3 (Black) hot; T2 (White) grounded neutral; green ground wire | One load with a maximum total wattage requirement equal to the generator's rated power output, with 120V across the generator output terminals |
| 120 | 1 | Battery charger AC input to generator backed-up 120VAC circuit | 120VAC hot, neutral | Connect via wire nuts |
| 120 | 1 | Line T1 (Red) to T2 (White) via circuit breaker CB1 | T1 (Red), T2 (White) | 120V single-phase 60 Hz loads |
| 120 | 1 | Line T3 (Black) to T2 (White) via circuit breaker CB2 | T3 (Black), T2 (White) | 120V single-phase 60 Hz loads; total unit load must not exceed maximum generator rating |
| 120/240 | 1 | 120/240 VAC loads - dual voltage output | T1 (Red), T2 (White), T3 (Black) plus green ground wire | One 240V load at rated output, OR two separate 120V loads each at half rated output. Loads across T1-T2 and T3-T2 must not exceed ratings. Unit is reconnectable to 120 and/or 240 volts; not RVIA/ANSI listed when reconnected for dual voltage. |
| 120/240 | 1 | GENERATOR (STANDBY) source power cables to ATS GENERATOR supply terminals | E1, E2 | 200A models |
| 120/240 | 1 | Non-essential customer LOAD leads to LSS switch terminals | E1, E2 | Load shed switch |
| 120/240 | 1 | UTILITY (NORMAL) power source cables to top of UTILITY SERVICE DISCONNECT circuit breaker | N1, N2 | 200A models |
| 240 | 1 | Transfer switch terminal lugs: connect utility source hot lines to N1 and N2; connect standby source hot lines (E1, E2) to E1 and E2; connect load lines from T1 and T2 to electrical load circuit; connect UTILITY, STANDBY and LOAD neutral lines to neutral block. | N1, N2, E1, E2, T1, T2 | In 1-phase systems with a 2-pole transfer switch. |
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 oil filter fits the Generac GT-530?
The Generac GT-530 uses oil filter part number 0D4511.
What fuel filter fits the Generac GT-530?
The Generac GT-530 uses fuel filter part number 0D9723.
What air filter does the Generac GT-530 use?
The Generac GT-530 uses air filter part number 087769.
Repair guides
21- Post Installation Start-up and Adjustments
- AUTO OFF MANUAL
- Over Speed (Shutdown Alarm)
- Operation
- Oil Drain Hose
- Maintenance
- Post Installation Start-up and Adjustments
- AUTO OFF MANUAL
- Over Speed (Shutdown Alarm)
- Operation
- Oil Drain Hose
- Service Procedure
- See the Service Schedule section for maintenance requirements.
- Maintenance
- Before starting, complete the following:
- The generator is now electrically “hot.”
- Figure 3.1 – Generator Control Panel
- If the generator voltage rises above 110% of rating for greater than
- Figure 4.1 — Oil Dipstick and Fill
- Before Initial Start-Up
Step-by-step procedures compiled from the Generac service manual for this model.
Parts
124model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 066386 | BRUSH HOLDER | 1 | Brush | Amazon eBay |
| 070185B | Recommended Oil Filter | 1 | Oil filter | Amazon $46.62 eBay $26.99 |
| 070185F | Oil filter | 1 | Oil filter | Amazon $31.99 eBay $18.50 |
| 075281 | SWITCH, HIGH TEMPERATURE | 1 | Sensor | Amazon eBay $39.00 |
| 078672 | SEAL, VALVE STEM D7 | 2 | Seal | Amazon eBay $6.49 |
| 087769 | FUEL FILTER | 1 | Fuel filter | Amazon $16.88 eBay |
| 088156 | SPARK PLUG | 1 | Seal | Amazon eBay |
| 0A8584 | SWITCH OIL PRESSURE | 1 | Sensor | Amazon $23.50 eBay FridayParts $31.60 |
| 0C1112 | BELT,V-RIB 4LX42.5" | 1 | Belt | eBay $44.99 |
| 0C1441 | SET,BLOWER HOUSING GASKET | 1 | Gasket | eBay |
| 0C1546 | O-RING 59.92 X 66.98 X 3.53MM | 1 | Seal | eBay $14.50 |
| 0C1547 | O-RING 21.89 X 27.13 X 2.62MM | 1 | Seal | eBay $14.50 |
| 0C1557 | O-RING 20.35 X 23.91 X 1.78MM | 1 | Seal | eBay $11.50 |
| 0C2977 | GASKET, CRANK CASE | 1 | Gasket | Amazon eBay $8.95 |
| 0C2978 | GASKET, HEAD | 2 | Gasket | Amazon eBay $12.23 |
| 0C2979 | GASKET, VALVE COVER | 2 | Gasket | Amazon eBay $4.89 |
| 0C2993 | SEAL, GOVERNOR SHAFT | 1 | Seal | Amazon eBay $29.49 |
| 0C2995 | GEROTOR, INNER | 1 | Pump | eBay $12.99 |
| 0C2996 | GEROTOR, OUTER | 1 | Pump | eBay $12.99 |
| 0C3005 | GASKET, BREATHER COVER | 1 | Gasket | Amazon eBay $1.09 |
| 0C3043 | GASKET INTAKE PORT GT990 | 2 | Gasket | Amazon eBay $6.99 |
| 0C4138 | GASKET,EXHAUST PORT | 2 | Gasket | Amazon eBay $8.80 |
| 0C4647 | GASKET, SOLENOID | 1 | Gasket | Amazon eBay $20.00 |
| 0C5136A | KNOB, AIR CLEANER (13,14,16,17Kw) | Air filter | eBay | |
| 0C5136D | KNOB, AIR CLEANER (20Kw) | Air filter | eBay | |
| 0C5943 | SEAL, OIL PASSAGE | 1 | Seal | Amazon eBay $8.89 |
| 0C6066 | SEAL, INLET REGULATOR | 1 | Seal | Amazon eBay |
| 0C6069 | GASKET, DIAPHRAGM | 1 | Gasket | Amazon eBay |
| 0C8127 | Air Filter | 1 | Air filter | Amazon $18.99 eBay $15.99 FridayParts $21.87 |
| 0D4511 | PRECLEANER, AIR | 1 | Air filter | Amazon $9.99 eBay $39.99 FridayParts $34.99 |
| 0D8981 | FILTER GASKET RV | 2 | Gasket | Amazon eBay |
| 0D9235 | OIL PRESSURE SWITCH HOBBS 5PSI | Sensor | eBay $19.99 | |
| 0D9723 | ELEMENT AIR FILTER | 1 | Air filter | Amazon $11.39 eBay $16.85 |
| 0D9782A | HOSE, BREATHER | 1 | Hose | eBay $10.59 |
| 0E0570 | ASSEMBLY,NON SHTOFF FUEL PUMP | 1 | Pump | eBay |
| 0E0571 | GASKET,AIR OUT DUCT | 2 | Gasket | eBay $15.00 |
| 0E0572 | GASKET,CARB TO INTAKE MANIFOLD | 1 | Gasket | eBay |
| 0E0573 | GASKET,CARB TO ADAPTOR | 1 | Gasket | eBay |
| 0E1078 | GASKET, EXH BASE, GTV760 RV | 2 | Gasket | eBay |
| 0E1078A | GASKET, EXHAUST BASE | 1 | Gasket | eBay $24.50 |
| 0E1497 | SWITCH, OIL HIGH TEMP | 1 | Sensor | eBay |
| 0E3273 | SCREEN CRANKCASE BREATHER | 1 | Crankcase breather | eBay $26.58 |
| 0E3812 | CRANKSHAFT SEAL | 2 | Seal | Amazon eBay $13.95 |
| 0E7585A | Spark Plug | 1 | Spark plug | Amazon $16.99 eBay $31.65 |
| 0E9366 | GASKET BREATHER ASSY | Gasket | eBay $4.00 | |
| 0E9371 | Air Filter | 1 | Air filter | Amazon eBay |
| 0E9471 | GASKET, MANIFOLD TO CARB/MIXER | Gasket | eBay $4.00 | |
| 0E9472 | GASKET, AIRBOX TO CARB/MIXER | Gasket | eBay $20.00 | |
| 0E9581 | Recommended Air Filter | 1 | Air filter | Amazon $22.99 eBay $18.99 |
| 0E9842 | SEAL, 42 I.D. CRANKSHAFT | 1 | Seal | eBay $32.86 |
| 0E9843 | SEAL, 38 I.D. CRANKCASE | 1 | Seal | Amazon eBay $12.99 |
| 0E9843A | SEAL, 38 I.D. CRANKSHAFT GREEN | Seal | eBay $32.00 | |
| 0F6558 | PANEL, ALTERNATOR DIVIDER | 1 | Alternator | Amazon eBay |
| 0F7065 | 3 FT HOSE RES 1/2 | 1 | Hose | eBay |
| 0F8246 | PANEL, ALTERNATOR DIVIDER (7KW) | 1 | Alternator | Amazon eBay |
| 0F8915 | PANEL, ALTERNATOR DIVIDER (10KW) | 1 | Alternator | Amazon eBay |
| 0F9719 | ASY POTTED REG W/FIN (voltage regulator) | 1 | Avr | eBay $66.97 |
| 0G0286 | HOSE,3/8"IDX6"L SAE J30 R9 | 2 | Hose | eBay |
| 0G3332 | Air filter | Air filter | Amazon $13.21 eBay $10.00 | |
| 0G4403 | ASSEMBLY, OIL DRAIN HOSE | 1 | Hose | eBay |
| 0G5894 | Air filter | 1 | Air filter | Amazon $10.99 eBay $19.99 KuduParts $13.00 |
| 7.5A | FUSE | 1 | Fuse | buy |
| 7.5A-24VDC | FUSE | 1 | Fuse | buy |
| RC12YC | Spark Plug | 1 | Spark plug | Amazon $19.99 eBay $12.90 FridayParts $19.99 |
| RC14YC | Spark plug | Spark plug | Amazon $14.66 eBay $10.00 | |
| RC14YCA | Recommended Spark Plug | Spark plug | Amazon eBay | |
| 005818-0 | Generator Model No. | Service part / kit | Amazon eBay | |
| 022097 | WASHER LOCK M6-1/4 | 1 | Service part / kit | Amazon eBay $2.99 |
| 022129 | WASHER LOCK M8-5/16 | 4 | Service part / kit | Amazon eBay |
| 022145 | WASHER FLAT 5/16-M8 ZINC | 1 | Service part / kit | Amazon $11.99 eBay $10.66 |
| 022473 | WASHER FLAT 1/4-M6 ZINC | 1 | Service part / kit | Amazon eBay |
| 043107 | SCREW HHC M8-1.25 X 25 | 4 | Service part / kit | Amazon eBay |
| 045771 | NUT HEX M8-1.25 G8 CLEAR ZINC | 4 | Service part / kit | Amazon eBay |
| 047411 | SCREW HHC M6-1.0 X 16 G8.8 | 1 | Service part / kit | Amazon eBay |
| 049813 | NUT HEX M6 X 1.0 G8 YEL CHR | 1 | Service part / kit | Amazon eBay $3.99 |
| 054502 | CIRCUIT BREAKER 3 X 1 | 1 | Service part / kit | eBay $49.95 |
| 056482 | BEARING | 1 | Service part / kit | eBay |
| 065795 | BATTERY CHARGER RECTIFIER | 1 | Service part / kit | Amazon eBay |
| 073590A | FUSE 5A X BUSS | 2 | Service part / kit | Amazon eBay $45.99 |
| 077220 | COIL UTILITY | Service part / kit | eBay $89.00 | |
| 077220A | COIL STANDBY | Service part / kit | eBay $100.00 | |
| 086516 | VALVE, EXHAUST | 2 | Service part / kit | Amazon eBay $26.00 |
| 090144 | CIRCUIT BREAKER 20 X 1 | 1 | Service part / kit | eBay |
| 090145 | CIRCUIT BREAKER 30 X 1 | 1 | Service part / kit | eBay $37.90 |
| 090388 | SCREW TAPTITE M6-1.0 X 12 | 15 | Service part / kit | Amazon eBay $3.49 |
| 092120 | NUT LOCK TRIC M6 X 1.0 | 4 | Service part / kit | Amazon eBay $2.49 |
| 0A9611 | FUSE 7.5 AMP | 1 | Service part / kit | Amazon eBay $19.99 |
| 0C2229 | VALVE, INTAKE | 2 | Service part / kit | Amazon eBay $18.92 |
| 0C2237 | TRANSFER SWITCH HOME STANDBY 100A 2P 250V | Service part / kit | eBay $260.00 | |
| 0C4706 | DIAPHRAGM, TWIN REGULATOR | 2 | Service part / kit | eBay |
| 0C5372 | ASSEMBLY, BREATHER | 1 | Service part / kit | Amazon eBay |
| 0C5760P | FUEL JET GASEOUS REGULATOR (7KW) | Service part / kit | eBay | |
| 0D1840 | BRACKET, BOTTOM SUPPORT | 2 | Service part / kit | Amazon eBay |
| 0D3700 | NUT FLANGE M6-1.0 NYLOK | 24 | Service part / kit | Amazon eBay $29.48 |
| 0D3867 | SPRING, VALVE | 4 | Service part / kit | Amazon eBay $28.80 |
| 0D4166 | Diaphragm kit (items 6 and 7, not sold separately) | Service part / kit | eBay | |
| 0D4662 | SCREW HHTR 5/16-18 X 3/4" (7KW) | 14 | Service part / kit | Amazon eBay $25.83 |
| 0D5133 | SCREEN, SPARK ARRESTOR | 1 | Service part / kit | Amazon eBay $36.22 |
| 0D8590 | ASSEMBLY, BI-METAL/HEATER | 1 | Service part / kit | eBay $140.00 |
| 0D8591 | SOLENOID, CHOKE | 1 | Service part / kit | eBay |
| 0D8807 | CARBURETOR, GT-760 | 1 | Service part / kit | eBay |
| 0E0393 | ASSEMBLY, CAP & DIP STICK | 1 | Service part / kit | Amazon eBay $2.96 |
| 0E1217 | CARBURETOR, GT-760 | 1 | Service part / kit | eBay |
| 0E1529 | CIRCUIT BREAKER 35 X 1 | 1 | Service part / kit | eBay |
| 0E3372A | Oil breather separator GTV | 1 | Service part / kit | Amazon eBay $4.50 |
| 0E7886A | CIRCUIT BREAKER 30A X 2P 240V (7KW) | Service part / kit | eBay $39.99 | |
| 0E7886D | CIRCUIT BREAKER 45A X 2P 240V (10KW) | Service part / kit | eBay | |
| 0E7886E | CIRCUIT BREAKER 50A X 2P 240V (12KW) | Service part / kit | eBay $78.49 | |
| 0E7886K | CIRCUIT BREAKER 55A X 2P 240V (13KW) | Service part / kit | eBay | |
| 0F0710 | RIVET POP .125 X 0.337 STEEL | 2 | Service part / kit | Amazon eBay |
| 0F5022 | SOLENOID COIL, 12VDC | 1 | Service part / kit | eBay $69.99 |
| 0F6549 | ENCLOSURE, EXHAUST SIDE | 1 | Service part / kit | Amazon eBay |
| 0F6591 | MUFFLER | Service part / kit | eBay $99.00 | |
| 0F7824 | FOAM, MUFFLER BOX END | 1 | Service part / kit | Amazon eBay |
| 0F7824A | FOAM, MUFFLER BOX END | 1 | Service part / kit | Amazon eBay |
| 0F7825 | FOAM, MUFFLER BOX FRONT | 1 | Service part / kit | Amazon eBay |
| 0F8078 | TAIL PIPE, MUFFLER | Service part / kit | eBay $39.00 | |
| 0F8871 | SCROLL, FAN (7KW, 10KW) | 1 | Service part / kit | Amazon eBay |
| 0F9653 | PAD, 24 X 48” WITH MOUNTING HOLES | 1 | Service part / kit | Amazon eBay |
| 0G2565 | RING SET PISTON DIA 90 | 2 | Service part / kit | Amazon eBay |
| 0G8023 | Battery Charger | Service part / kit | eBay | |
| 0G8487 | Battery charger assembly | 1 | Service part / kit | eBay $34.99 |
| 0G8783 | Battery charger assembly | 1 | Service part / kit | eBay |
| 0J2936 | Service part / kit | Amazon eBay |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Owner's manual — 5153 4704 om (Generac)Owner's manual — 655c04ae620472238c4ccf9a 67644684153 (Generac)Owner's manual — 696471058185 use (Generac)Owner's manual — ASPDS-Y-1SG (Generac)Owner's manual — honeywell-home-standby-generator-10kw-15kw-20kw-owners-manual (Generac)Parts manual — 5240-0 (Generac)Service manual — 0G9266 (Generac)