Service parts for the XG8000
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredIgnition
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | gasoline |
|---|---|
| Frequency | 60.0 Hz |
| Prime power | 8 kW |
| Emissions | 49-State |
| Oil capacity | 1.5 L |
| Voltage options | 120/240 V |
| Phase | Single Phase |
| Rated current | 33.3 Amps @ 240V, 66.7 Amps @ 120V A |
| Circuit breaker | 30 Amp (2-pole, 120/240V receptacle); 20 Amp (120V GFCI receptacle) A |
| Battery voltage | 12 Volts V |
| Dimensions (L×W×H) | 800×647×711 mm |
| Dry weight | 113 kg |
| Fuel tank | 34.07 L |
| Tank runtime | 10 Hours hr |
Engine
| Oil capacity | 1.5 L |
|---|---|
| Displacement | 0.41 L |
| Aspiration | naturally aspirated |
| Rated speed | 3600 rpm |
Maintenance & consumables
for the Generac OHVI| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | 073111 | 200 hr | Amazon $11.69 eBay | |
| Fuel filter | In-line fuel filter | — | |||
| Oil filter | Engine Oil Filter | 070185B | 100 hr | Amazon $46.62 eBay $26.99 | |
| Oil | 5W30 | 1.5 quart | 0J00620106 | 100 hr | Amazon $8.99 eBay $35.00 FridayParts $32.07 |
| Spark plug | Champion RC14YC; gap 0.030" (0.76mm) | 0J00620106 | Amazon $8.99 eBay $35.00 FridayParts $32.07 |
Service intervals
4| Item | Action | Hours | Months | Notes |
|---|---|---|---|---|
| Oil and Oil Filter | Change | 100 hr | First service — First 30 hours | |
| Engine oil | Change | 100 hr | First service — every 100 hours of run time thereafter | |
| Spark Arrestor Screen | Clean | 100 hr | Every Season/Every 100 Hours; clean more often under dirty/dusty conditions | |
| Air Filter | Other | 200 hr | Service Air Filter - Every Season/Every 200 Hours |
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
2| Type | Item | Value | Unit | Condition |
|---|---|---|---|---|
| Gap | Spark Plug Gap | 0.030 | inch (0.76 mm) | |
| Pressure | Low oil pressure shutdown | 5 | psi |
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 | Oil will need to be purchased separately based upon the recommendations listed. | |||
| Engine oil | SAE 30 | Oil will need to be purchased separately based upon the recommendations listed. | |||
| Engine oil | Synthetic 5W-30 | Oil will need to be purchased separately based upon the recommendations listed. | |||
| Engine oil | synthetic 5W-30 | Below 10°F | |||
| Fuel | Regular unleaded gasoline, max 10% ethanol | 9.0 U.S. gallons | |||
| Fuel | unleaded gasoline, minimum 85 octane | Do not use any gasoline with more than 10% added ethanol. Never use E85. Do not mix oil with gasoline. |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Procedures
6Change Oil maintenance
⚠ Hot oil may cause burns
- Clean area around oil drain cap
- Remove oil drain cap and oil fill plug; drain oil completely
- Install and tighten oil drain cap
- Remove oil filter by turning counterclockwise; discard properly
- Coat gasket of new filter with clean oil; turn clockwise until gasket contacts, then tighten additional 3/4 turn
- Fill oil sump with recommended oil and replace oil fill plug
- Wipe up spilled oil
- Dispose of used oil properly
Clean Spark Arrestor Screen maintenance
- Loosen clamp and remove spark arrestor screen from muffler
- Inspect screen; replace if torn/perforated/damaged; clean with commercial solvent if not damaged
- Replace spark arrestor and secure with clamp
Prepare for Long Term Storage maintenance
⚠ Never store engine with fuel in tank indoors near open flame
- Remove all gasoline from fuel tank
- Start and run engine until it stops from lack of fuel
- Allow engine to cool, drain oil from crankcase, refill with recommended grade
- Remove spark plug, pour ~1/2 oz (15 ml) oil into cylinder, pull recoil starter a couple times
- Install and tighten spark plug; do not connect wire
- Clean generator outer surfaces
- Store unit in a clean, dry place
Replace Spark Plug maintenance
- Stop engine and pull spark plug wire off
- Remove four socket head screws and take off side panel
- Clean area around spark plug and remove it
- Set gap to 0.030 in (0.76 mm) and install
- Push boot firmly on spark plug and install side panel
Service Air Filter maintenance
- Remove air filter cover and remove paper filter
- Clean paper filter by tapping gently; replace if too dirty
- Clean air filter cover, insert new/cleaned filter, re-install cover
Replace Battery repair
⚠ Drain fuel outdoors away from open flame
- Remove side panel and remove four bolts securing fuel tank
- Turn fuel valve OFF; pull fuel tank back and remove fuel hose
- Drain fuel into approved container outdoors
- Disconnect recovery hose from rollover valve
- Push fuel valve from control panel and remove fuel tank
- Remove battery wire connections (black wire first) and hold-down bracket
- Replace battery, connecting red wire to positive and black wire to negative
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 engine is in the Generac XG8000?
The Generac XG8000 is powered by the Generac OHVI engine.
Is the Generac XG8000 diesel or gas?
The Generac XG8000 runs on gasoline.
What's the oil capacity on a Generac XG8000?
The Generac OHVI engine in the Generac XG8000 has an oil capacity of 1.5 liters.
Which oil filter part number does the Generac XG8000 take?
The Generac XG8000 uses oil filter part number 070185B.
What air filter fits the Generac XG8000?
The Generac XG8000 uses air filter part number 073111.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine is running, but no AC output is available. | 1. Circuit breaker is open. 2. Poor connection or defective cord set. 3. Connected device is bad. 4. Fault in generator. 5. GFCI trips the 20 Amp outlet. | 1. Reset circuit breaker. 2. Check and repair. 3. Connect another device that is in good condition. 4. Contact Authorized Service Facility. 5. Repair the 'short' and reset the GFCI. |
| Engine runs good but bogs down when loads are connected. | 1. Short circuit in a connected load. 2. Generator is overloaded. 3. Engine speed is too slow. 4. Shorted generator circuit. | 1. Disconnect shorted electrical load. 2. See 'Don't Overload the Generator'. 3. Contact Authorized Service Facility. 4. Contact Authorized Service Facility. |
| Engine will not crank. | Battery weak or dead. | 1. Recharge or replace battery (see 'No Battery Charger DC output' at bottom of guide). 2. Start engine manually using recoil starter. |
| Engine will not start; or starts and runs rough. | 1. Fuel shut-off is OFF. 2. Dirty air filter. 3. Out of gasoline. 4. Stale gasoline. 5. Spark plug wire not connected to spark plug. 6. Bad spark plug. 7. Water in gasoline. 8. Over-choking. 9. Low oil level. 10. Excessive rich fuel mixture. 11. Intake valve stuck open or closed. 12. Engine has lost compression. | 1. Turn Fuel shut-off ON. 2. Clean or replace air filter. 3. Fill fuel tank. 4. Drain fuel tank and fill with fresh fuel. 5. Connect wire to spark plug. 6. Replace spark plug. 7. Drain fuel tank; fill with fresh fuel. 8. Put choke knob to No Choke position. 9. Fill crankcase to proper level. 10. Contact Authorized Service Facility. 11. Contact Authorized Service Facility. 12. Contact Authorized Service Facility. |
| Engine shuts down during operation. | 1. Out of gasoline. 2. Low oil level. 3. Fault in engine. | 1. Fill fuel tank. 2. Fill crankcase to proper level. 3. Contact Authorized Service Facility. |
| Engine lacks power. | 1. Load is too high. 2. Dirty air filter. 3. Engine needs to be serviced. | 1. See 'Don't Overload the Generator'. 2. Replace air filter. 3. Contact Authorized Service Facility. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Generac XG8000 troubleshooting guide (8 entries) →
Parts
106| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 005819-0 | 26R Wet Cell Battery | Battery | Amazon eBay | |
| 048031B | CLAMP, HOSE, 09 | 4 | Clamp | Amazon eBay $2.89 |
| 067989 | NUT, M8 | 4 | Nut | Amazon eBay $6.00 |
| 070185B | Recommended Oil Filter | 1 | Oil filter | Amazon $46.62 eBay $26.99 |
| 070264 | WASHER, FLAT, M10X4 | 1 | Washer | Amazon eBay |
| 073111 | Air Filter | 1 | Air filter | Amazon $11.69 eBay |
| 0B1214 | BOLT, M8X45 | 5 | Bolt | Amazon eBay |
| 0D4968 | OUTLET 20A 120V DPLX | 2 | Outlet | Amazon eBay $22.45 |
| 0D4999 | PIN, COTTER | 2 | Pin | Amazon eBay $1.28 |
| 0E7585 | Spark Plug (Champion RC14YC or equivalent) | 1 | Spark plug | Amazon $8.99 eBay $12.77 |
| 0E9470 | BOLT, M8X16 | 4 | Bolt | Amazon eBay $29.48 |
| 0E9507B | BOLT, M8X25 | 2 | Bolt | Amazon eBay $26.36 |
| 0E9507C | BOLT, M8X20 | 4 | Bolt | Amazon eBay $25.31 |
| 0G5442 | SnapButton | 1 | Button | Amazon eBay $29.48 |
| 0G8321 | METER, HOUR | 1 | Meter | Amazon eBay $24.99 |
| 0G8382 | SCREW, PAN, M5 X 16 | 8 | Bolt | Amazon eBay |
| 0G84420107 | NUT, M10 | 4 | Nut | Amazon eBay $25.16 |
| 0G84420194 | BOLT, M6X12 | 1 | Bolt | Amazon eBay $9.99 |
| 0G84420272 | NUT, M6 | 1 | Nut | Amazon eBay $24.78 |
| 0G8442C | ENGINE, 389cc | 1 | Engine | Amazon eBay $375.00 |
| 0G8442C113 | GRIP, HANDLE | 1 | Handle | Amazon eBay $35.48 |
| 0G8542 | BRACKET, MUFFLER | 1 | Bracket | Amazon eBay |
| 0G8758 | OUTLET 30A 120/250V SPCGR | 1 | Outlet | Amazon eBay $41.25 |
| 0G9028 | GASKET, EXH, CYLNDR | 1 | Gasket | Amazon eBay $16.95 |
| 0G9391 | COVER, OUTLET | 1 | Cover | Amazon eBay |
| 0G9392 | COVER, OUTLET | 2 | Cover | Amazon eBay $38.81 |
| 0G9756 | COVER, BACK PANEL | 1 | Cover | Amazon eBay |
| 0G9757A | HOSE, FUEL, 08X55 | 1 | Hose | Amazon eBay $28.75 |
| 0G9757B | HOSE, FUEL, 08X80 | 1 | Hose | Amazon eBay $22.00 |
| 0G9911 | SWITCH, ON/OFF RED-ROTARY | 1 | Switch | Amazon eBay $14.45 FridayParts $11.92 |
| 0G9914 | FILTER, FUEL | 1 | Filter | Amazon eBay $16.99 KuduParts $8.00 |
| 0H0204 | PIN, AXLE | 2 | Pin | Amazon eBay $20.00 |
| 0H0265C | BREAKER, CIRCUIT, 20A | 2 | Breaker | Amazon eBay $10.99 |
| 0H0265E | BREAKER, CIRCUIT, 30A | 2 | Breaker | Amazon eBay |
| 0H0919 | BRUSH, ALTERNATOR | 1 | Brush | Amazon eBay $25.00 |
| 0H0958 | CAP, FUEL | 1 | Cap | Amazon eBay $14.98 |
| 0H12810104 | BOLT, M6X185 | 4 | Bolt | Amazon eBay |
| 0H1326 | FILTER, FUEL | 1 | Filter | Amazon $7.98 eBay $7.99 KuduParts $6.00 |
| 0H1411B | RUBBER, FUEL TANK | 4 | Rubber | Amazon eBay $26.05 |
| 0H1610A | LINING, ANTI-CRUSH | 4 | Lining | Amazon eBay $25.01 |
| 0H1780 | BOLT, CURVED HEAD, M8X40 | 6 | Bolt | Amazon eBay $12.99 |
| 0H1781 | BOLT, CARRIAGE HEAD M8XX46 | 2 | Bolt | Amazon eBay |
| 0H1782 | NUT, LOCKING CAP, M8 | 9 | Nut | Amazon eBay $17.60 |
| 0H1783 | MOUNT, RUBBER VIB | 4 | Mount | Amazon eBay $20.00 |
| 0H2579B | AVR 5.5-7.5KW VISION ALT | 1 | Avr | Amazon eBay $14.65 FridayParts $20.69 |
| 0H3049 | COVER, GEN-END | 1 | Cover | Amazon eBay |
| 0H7510A0SRV | TANK, FUEL, 7 GAL | 1 | Tank | Amazon eBay |
| 0H9005 | METER, FUEL | 1 | Meter | Amazon eBay $12.67 FridayParts $12.00 |
| 0H91980158 | BOLT, FLANGE, M5X220 | 2 | Bolt | Amazon eBay |
| 0H91980171 | HOUSING, REAR BEARING | 1 | Housing | Amazon eBay $49.99 |
| 0H9749AST03 | PANEL RAIL BACK | 1 | Panel | Amazon eBay |
| 0H97560ST15 | HANDLE | 1 | Handle | Amazon eBay $55.73 |
| 0H9760 | CAP, END | 1 | Cap | Amazon eBay |
| 0H9761 | ALTERNATOR SCROLL | 1 | Scroll | Amazon eBay |
| 0H9763A | MUFFLER | 1 | Muffler | Amazon eBay |
| 0H97670ST15 | BRACKET, HANDLE | 1 | Bracket | Amazon eBay $37.36 |
| 0H9775B | PANEL ASSY., CONTROL | 1 | Panel | Amazon eBay |
| 0J00620100 | BOLT, M5X10 | 1 | Bolt | Amazon eBay $24.85 |
| 0J00620106 | Spark Plug | 1 | Spark plug | Amazon $8.99 eBay $35.00 FridayParts $32.07 |
| 0J0974 | SHUT-OFF VALVE, FUEL | 1 | Valve | Amazon eBay $8.99 |
| 0J35220156 | BOLT, M6X20 | 1 | Bolt | Amazon eBay |
| 0J35220161 | NUT, M8 | 2 | Nut | Amazon eBay $4.59 |
| 0J35220173 | CLAMP, 012 | 1 | Clamp | Amazon eBay $26.73 |
| 0J35220174 | CLAMP, 010 | 1 | Clamp | Amazon eBay |
| 0J4535A | MANIFOLD, EXHAUST | 1 | Manifold | Amazon eBay |
| 0J4536 | FACE PLATE, CNTRL PNL ASSY. | 1 | Plate | Amazon eBay |
| 0J4691 | GASKET, EXH., MUFFLER | 1 | Gasket | Amazon eBay $25.37 |
| 0J47870118 | WASHER, FLAT 6X0.8 | 1 | Washer | Amazon eBay $24.70 |
| 0J4967 | BOLT, M5X12 | 6 | Bolt | Amazon eBay $24.85 |
| 0J4968 | BOLT, M5X16 | 3 | Bolt | Amazon eBay |
| 0J6072 | TERMINAL | 1 | Terminal | Amazon eBay |
| 0J7921 | ROLL OVER VALVE | 1 | Valve | Amazon eBay $20.95 |
| 0J86620100 | FRAME | 1 | Frame | Amazon eBay $89.00 |
| 0J86620103 | BOLT, M10X275 | 1 | Bolt | Amazon eBay |
| 0J86620104 | BAFFLE | 1 | Baffle | Amazon eBay $26.05 |
| 0J86620108 | NUT, M4 | 6 | Nut | Amazon eBay |
| 0K0091 | HOSE FORMED ROV-AIRBOX | 1 | Hose | Amazon eBay $15.95 |
| 0K0092 | WIRE ASSY., GRND | 1 | Wire | Amazon eBay $29.12 |
| 0K0093 | WASHER, SPECIAL LOCK | 1 | Washer | Amazon eBay |
| 0K0094 | NUT, M6 | 1 | Nut | Amazon eBay |
| 0K0097 | FRAME, BENT FOOT | 2 | Frame | Amazon eBay |
| 0K0098 | NUT, M8 | 4 | Nut | Amazon eBay $25.68 |
| 0K0099 | FOOT, RUBBER | 2 | Foot | Amazon eBay |
| 0K0100 | BOLT, M6X28 | 2 | Bolt | Amazon eBay $25.31 |
| 0K0105 | NUT, M6 | 2 | Nut | Amazon eBay $5.49 |
| 0K1291 | ALTERNATOR ASSY. | 1 | Alternator | Amazon eBay |
| 0K6011 | WHEEL | 2 | Wheel | Amazon eBay $30.00 |
| 338-4086 | Genset to Pump Actuator | 1 | Pump | Amazon eBay |
| 338-4088 | For Oil Temperature Display from Sensor | 1 | Sensor | Amazon eBay |
| 005703-0 | Paint Kit | Service part / kit | Amazon eBay | |
| 005818-0 | Generator Model No. | Service part / kit | Amazon eBay | |
| 005839-0 | Fascia Base Wrap Kit | Service part / kit | Amazon eBay | |
| 006004-0 | Scheduled Maintenance Kit | Service part / kit | Amazon eBay $25.20 | |
| 006016-0 | 240V Conversion Kit | Service part / kit | Amazon eBay $55.00 | |
| 021127A | Service part / kit | Amazon eBay | ||
| 022304 | WASHER FLAT 1/2 ZINC | 2 | Service part / kit | Amazon eBay |
| 0H97480ST03 | FRAME, RAIL | 1 | Service part / kit | Amazon eBay $44.00 |
| 338-4084 | Harness, Switch (P2) (Includes Parts Marked @) | 1 | Service part / kit | Amazon eBay |
| 338-4085 | Genset to Battery | 1 | Service part / kit | Amazon eBay |
| 338-4087 | Lead Harness | 1 | Service part / kit | Amazon eBay |
| 338-4089 | For AC Display from Genset | 1 | Service part / kit | Amazon eBay |
| 696471068528 | Transfer Switch Model 6852 | Service part / kit | Amazon eBay | |
| 696471068535 | Transfer Switch Model 6853 | Service part / kit | Amazon eBay | |
| 696471071481 | Transfer Switch Model 9854 | Service part / kit | Amazon eBay | |
| 696471071498 | Transfer Switch Model 9855 | Service part / kit | Amazon eBay | |
| 96471068542 | Transfer Switch Model 6854 | 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.
Available documents
Spec sheet — 0182210SBY (Generac)Spec sheet — 0183340SBY (Generac)Spec sheet — 0183350SBY (Generac)Spec sheet — 0187630SBY (Generac)Reference (Generac)Reference — 0180710SBY (Generac)Reference — 0187620SBY (Generac)Owner's manual (Generac)Parts manual (Generac)Parts manual — 0198280-A-Portable-Maint-Kits (Generac)