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Home›Generac›Generac NP-50G

Generac NP-50G Generator Set

The Generac NP-50G is a gasoline generator set powered by a Generac GN-410 engine. It is available at 120 V and 240 V, single-phase, 60 Hz and rated 40 A. It holds about 1.4 L (0.4 gal) of oil. Starting uses battery rated 400 CCA at 12 V. The set measures 635×470×400 mm (25.0×18.5×15.7 in) and weighs about 93 kg (205 lb).

0.407 L
Displacement
1.4 L
Oil capacity
3
Document types

How to read your Generac serial & model number →

On this pageService partsSpecsEngineMaintenanceFuel consumptionDocumentsFAQService intervalsTorque & specsFluidsProceduresWiring

Service parts for the NP-50G

Grouped by system, with how many of each the parts manual calls for.

Air intake

1 required
73111Air filter$11.69Amazon

Fuel system

1 required
87769Fuel filter$18.99eBay

Oil system

1 required
70185Oil filter$18.99eBay

Belts

1 required
75216Beltsee priceAmazon

Ignition

1 required
72347Spark plug$7.19Amazon

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

Fuelgasoline
Frequency60.0 Hz
Oil capacity1.4 L
AlternatorNP-50G/LP (2-pole)
Voltage options120 V, 240 V
Phasesingle
Rated current40 A
Circuit breaker20 and 30 A
Battery cranking400 CCA
Battery voltage12 V
Dimensions (L×W×H)635×470×400 mm
Dry weight93 kg

Engine

Generac GN-410
Oil capacity1.4 L
Displacement0.407 L
Rated speed2571 rpm

Maintenance & consumables

for the Generac GN-410
ItemSpecCapacityPart #Interval
Air filter73111100 hr Amazon $11.69 eBay $17.99
Fuel filter87769100 hr Amazon $43.25 eBay $18.99
Oil filter70185100 hr Amazon $28.95 eBay $18.99 KuduParts $11.00
Battery12 volt, 70 amp-hour, 360 cold cranking amperes (above 32°F); 95 amp-hour, 450 CCA (below 32°F)—
Belt40" Belt (Poly V 4L)75216 Amazon eBay
OilSAE 10W-30, For Service SF—100 hr
Spark plug72347100 hr Amazon $7.19 eBay $9.99

Service intervals

13
ItemActionHoursMonthsNotes
Engine oil levelCheck8 hrAt least every eight hours of operation, or before use
25-hour check upOther25 hrFirst service — After 25-hour break-in: change oil and oil filter, check oil level, inspect cooling/ventilation openings, check carburetor adjustments, check ignition system, inspect electrical system, inspect exhaust system
Foam pre-cleanerClean25 hr3 moEvery three months or 25 operating hours, whichever comes first; more often in dusty conditions
Engine crankcase oilChange50 hrFirst service — First change after 25-hour break-in period, then every 50 operating hours
Engine oilChange50 hrFirst service — Thereafter every 50 operating hours; more often under heavy load or high ambient temperature
Air intake screenClean100 hrAt least once every 100 hours of operation; clean more often if necessary
Engine spark plugClean100 hrClean and set gap to 0.030 inch (0.76mm) every 100 hours
Fuel filterReplace100 hr12 moEvery 100 hours of operation or once each year, whichever comes first
Oil filterChange100 hrFirst service — First change after 25 hours, every 100 operating hours thereafter
Paper air filterReplace100 hr12 moOnce each year or every 100 hours, whichever comes first; must be flame retardant type
Paper air filter elementReplace100 hr12 moOnce each year or every 100 hours of operation, whichever comes first
BatteryTest6 moEvery six months check state of charge and condition with an automotive battery hydrometer
Battery state of charge and conditionTest6 moEvery six months with automotive type battery hydrometer

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

56
TypeItemValueUnitCondition
ClearanceExhaust system clearance to combustible material3inches (76mm)
ClearanceGenerator compartment clearance on sides1inch
ClearanceGenerator compartment clearance on top1-1/2inches
GapSpark plug gap0.030inch (0.76mm)
OtherBattery amp-hour rating70amp-hourabove 32°F (0°C)
OtherBattery amp-hour rating95amp-hourbelow 32°F (0°C)
OtherBattery charge current2amperes (max)
OtherBattery groundingNegative (-)
OtherBattery voltage12volts DC
OtherBattery voltage drop0.12volts per 100 amperes
OtherCold cranking amperes360CCAabove 32°F (0°C)
OtherCold cranking amperes450CCAbelow 32°F (0°C)
OtherCompression ratio8.6 to 1
OtherCrankcase oil capacity1.5U.S. quarts (1.6 liters)
OtherCranking current100DC amperes
OtherDisplacement363cc
OtherDisplacement480cc
OtherDisplacement570cc
OtherExhaust temperature rise maximum117°F (65°C) above ambient
OtherFlexible fuel hose length6inches longer than necessary
OtherFuel line clearance from exhaust2inches
OtherFuel octane87minimum octane ratinggasoline
OtherLP gas connection size3/4inch (female)
OtherMinimum cooling air inlet opening100square inches
OtherMinimum gas flow rate67cubic feet per hour
OtherRated horsepower13horsepowerat 3600 RPM
OtherRated horsepower16horsepowerat 3600 RPM
OtherRated horsepower19horsepowerat 3600 RPM
PressureLP gas pressure at gaseous fuel solenoid valve and secondary regulator inlet11inches water columnoperating
PressureLP gas pressure at inlet to gaseous fuel solenoid11inches water column
PressureLP gas pressure maximum14inches water columndo not exceed
PressureLeak test pressure90psi (620kPa)
PressureLow oil pressure switch10PSInormally-closed; engine shuts down on low pressure
PressureOil pressure switch (low oil) setting10PSInormally-closed
SpeedEngine RPM2570rpm
SpeedEngine RPM2571rpm
SpeedEngine RPM2700rpm
SpeedFrequency under load58Hertzminimum under load
SpeedFrequency under load minimum58Hzunder load
SpeedNo-load frequency62Hzno-load
SpeedRated horsepower15HPat 4200 RPM
SpeedRated horsepower engine speed4200RPM15 HP rated
SpeedRotor RPM3600RPM
TemperatureHigh oil temperature switch284°F (140°C)
TemperatureHigh oil temperature switch closes284°F (140°C)
TemperatureHigh temperature shutdown switch284°F (140°C)contacts close and engine shuts down
TemperatureHigh temperature shutdown switch setting284°F (140°C)shutdown
TorqueGovernor clamp bolt70inch-pounds (8 N-m)
TorqueGovernor clamp nut70inch-pounds (8 N-m)
VoltageBattery cable voltage drop0.12volts per 100 amperes of cranking currentmaximum
VoltageBattery charge voltage14Volts DC
VoltageDual voltage line-to-line no-load voltage244-252volts ACno-load, reconnected dual voltage
VoltageNo-load voltage122-126volts ACno-load
VoltageRegulated AC output voltage120volts ACat 60 Hz (voltage-to-frequency ratio 2-to-1)
VoltageVoltage regulator adjustment124volts62 Hz, no-load
VoltageVoltage regulator setting124volts ACat 62 Hz no-load

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

FluidGradeStandardAmbientCapacityNotes
Engine oilSAE 10W-30For Service SF1.5 U.S. quarts1.6 liters
Engine oilSAE 30 (summer); SAE 10W-30 acceptable substitute; SAE 5W-30 (winter)API service classification SF, SG or SH1.4 litersCrankcase and oil filter capacity about 1400ml or about 1.5 U.S. quarts. Do not use SAE 10W-40. Use no special additives.
Engine oilSAE 30 (summer); SAE 5W30 (winter); SAE 10W-30 acceptable substitute in summerAPI service classification SF, SG, or SH1.4 LDO NOT USE SAE 10W40. Crankcase and oil filter capacity about 1400ml or about 1.5 U.S. quarts. Use no special additives. For storage, use SAE 10W30, API 'For Service SF'.
FuelCommercial propane gasVapor withdrawal type system only
FuelHigh quality UNLEADED gasoline (leaded REGULAR grade acceptable substitute)Gasoline with alcohol must not contain more than 10 percent ethanol; do not use methanol
FuelHigh quality unleaded gasoline; leaded REGULAR grade an acceptable substituteDo not use gasoline containing alcohol; if used, must not contain more than 10 percent ethanol and must be removed during storage. Do NOT use gasoline containing methanol.
FuelUNLEADED gasoline, minimum octane rating 87Leaded REGULAR grade gasoline acceptable substitute. For gasoline-powered units.
FuelUnleaded gasoline with minimum octane rating of 87Leaded REGULAR grade gasoline is an acceptable substitute
OtherDistilled water (battery cells)DO NOT USE TAP WATER IN BATTERY

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Procedures

12
Adjusting No-Load Frequency (NP-50G/LP) adjustment

⚠ Avoid overspeeding the engine.

Tools: Pliers, Wrench

  1. Loosen governor clamp bolt.
  2. Push spring end of governor lever clockwise to wide open throttle position.
  3. Hold governor lever at wide open throttle. With pliers, rotate governor shaft fully counterclockwise.
  4. While holding shaft fully clockwise and lever at wide open throttle, tighten governor clamp bolt to 70 inch-pounds (8 N-m).
  5. Start engine, let it stabilize and warm up at no-load.
  6. Turn adjuster nut to obtain frequency reading of 62 Hertz.
  7. Check governor spring location in slot of governor lever. Move spring down one slot for excessive droop; up one slot for greater stability.
  8. After repositioning spring, recheck frequency and readjust adjuster nut if necessary.
  9. Check AC voltage reading. If incorrect, voltage regulator may require adjustment.
Adjusting No-Load Frequency (Q-40G, NP-66G/LP, Q-55G/LP, Q-70G/LP) adjustment

⚠ Avoid overspeeding the engine.

Tools: Screwdriver, Wrench

  1. Loosen governor clamp nut.
  2. Push spring end of governor lever all the way up to wide open throttle position.
  3. Hold governor lever at wide open throttle. Insert screwdriver into slotted end of governor shaft. Rotate governor shaft fully counterclockwise.
  4. While holding governor shaft fully counterclockwise and lever at wide open throttle, tighten governor clamp nut to 70 inch-pounds (8 N-m).
  5. Start engine, let it stabilize and warm up at no-load.
  6. Turn adjuster nut to obtain frequency reading of 62 Hertz.
  7. Check governor spring location. Move spring left on bracket teeth for excessive droop; right for greater stability.
  8. After repositioning spring, recheck frequency and readjust adjuster nut if necessary.
  9. Check AC voltage reading. If incorrect, voltage regulator may require adjustment.
Adjusting No-Load Frequency for NP-50G/LP adjustment

Tools: pliers

  1. Loosen governor clamp bolt.
  2. Push spring end of governor lever clockwise to wide open throttle position of lever.
  3. Hold governor lever at wide open throttle and, with pliers, rotate governor shaft fully counterclockwise.
  4. While holding governor shaft fully clockwise and governor lever at wide open throttle, tighten governor clamp bolt to 70 inch-pounds (8 N-m).
  5. Start engine; let it stabilize and warm up at no-load.
  6. Turn adjuster nut to obtain a frequency reading of 62 Hertz.
  7. Check governor spring location in slot of governor lever.
  8. If droop is excessive, move governor spring down one slot on lever.
  9. For greater stability, move governor spring up one slot on lever.
  10. Recheck frequency reading; readjust adjuster nut if necessary to obtain 62 Hertz at no-load.
  11. When frequency is correct at no-load, check AC voltage; voltage regulator may require adjustment.
Adjusting No-Load Frequency for Q-40G, NP-66G/LP, Q-55G/LP, Q-70G/LP adjustment

Tools: screwdriver

  1. With engine stopped, inspect anti-lash spring. Replace if broken or damaged; attach if disconnected.
  2. Loosen governor clamp nut.
  3. Push spring end of governor lever all the way up to wide open throttle position.
  4. Hold governor lever at wide open throttle and insert screwdriver into slotted end of governor shaft.
  5. Rotate governor shaft fully counterclockwise (CCW).
  6. While holding shaft fully counterclockwise and lever at wide open throttle, tighten governor clamp nut to 70 inch-pounds (8 N-m).
  7. Start engine; let it stabilize and warm up at no-load.
  8. Turn adjuster nut to obtain a frequency reading of 62 Hertz.
  9. Check governor spring location in notched teeth of governor adjustment bracket.
  10. If droop is excessive, move governor spring to the left on notched teeth of bracket.
  11. For greater stability, move governor spring to the right on notched teeth of bracket.
  12. Recheck frequency reading; readjust adjuster nut if necessary to obtain 62 Hertz at no-load.
  13. When frequency is correct at no-load, check AC voltage; voltage regulator may require adjustment.
Voltage Regulator Adjustment adjustment

Tools: screwdriver

  1. Remove generator control panel cover and front panel.
  2. With frequency at 62 Hertz, AC voltage should read 124 volts.
  3. If voltage is incorrect, slowly turn VOLTAGE ADJUST POT on voltage regulator until AC voltage is correct.
Checking No-Load Voltage and Frequency diagnostic

Tools: AC voltmeter, AC frequency meter

  1. Connect an accurate AC voltmeter and AC frequency meter across generator AC output leads.
  2. With generator running, stabilized, and warm, check AC frequency and voltage. Frequency should be about 62 Hz; voltage about 122-126 volts AC.
  3. If frequency is high or low, adjust engine governor to obtain 62 Hertz at no-load; then recheck voltage reading.
  4. If frequency is good but voltage is high or low, adjust voltage regulator to obtain 124 volts at 62 Hz no-load.
LP Gas Leakage Test diagnostic

⚠ Do not use any flame to test for leaks.

⚠ No leakage is permitted.

Tools: separate 12 volts DC source, soap and water or equivalent solution

  1. Use a separate source of 12 volts DC to open the gaseous fuel solenoid valve.
  2. Test all connections, hoses, valves, regulators, fittings, and other fuel system parts under gas or air pressure of not less than 90 psi (620 kPa).
  3. Use soap and water or equivalent solution to check for leaks.
  4. Do not use any flame to test for leaks.
  5. Comply with NFPA Paragraph 318.
Leakage Tests diagnostic

⚠ Do not use any flame to test for leaks.

Tools: Soap and water solution, 12 volts DC source

  1. Do not place generator into service until gas system properly tested for leaks.
  2. Use separate source of 12 volts DC to open gaseous fuel solenoid valve.
  3. Test all connections, hoses, valves, regulators, fittings under gas or air pressure of not less than 90 psi (620kPa).
  4. Use soap and water or equivalent solution to check for leaks.
  5. Do not use any flame to test for leaks.
Testing Under Load diagnostic

Tools: AC frequency meter

  1. Apply electrical loads equal to about 75-100% of unit's rated wattage/amperage capacity.
  2. Check frequency with electrical load applied; frequency should not drop below about 58 Hz under load.
  3. Let unit run at least 30 minutes with load applied; check unit is not running excessively hot and adequate cooling air flow is available.
  4. Do not allow unit to overheat during prolonged operation.
Battery Cable Connections installation
  1. Connect battery cable from battery POSITIVE, POS or (+) post to large lug on starter contactor.
  2. Connect battery cable from battery NEGATIVE, NEG or (-) post to frame ground connection.
  3. Connect cables so connectors are clean and tight. Check battery cable boot for starter cable has been installed.
Reconnection Procedure installation

⚠ Units reconnected for 120/240 volts dual voltage output will not be listed per RVIA.

⚠ Not applicable to Q-40G model.

  1. Remove generator cover and front panel.
  2. Disconnect stator leads 11 and 33, T1 (red) and T3 (black) from main circuit breakers CB1 and CB2.
  3. Set aside leads T1 (red) and T3 (black) for later use.
  4. Disconnect stator leads 11 and 33 from 4-tab terminal connector (TC).
  5. Disconnect stator leads 22 and 44 from grounding terminal (GT).
  6. Disconnect one of the two T2 (white) leads from grounding terminal.
  7. Remove existing circuit breakers CB1 and CB2; install new appropriately rated circuit breaker.
  8. Connect stator leads 11 and 44 to new circuit breaker; attach leads T1 (red) and T3 (black).
  9. Connect stator leads 22 and 33 to grounding terminal (GT).
  10. Be sure a neutral lead is installed and routed from grounding terminal for connection loads.
  11. Route leads T1 (red), T3 (black), and grounded neutral lead through conduit clamp and out of panel.
  12. Reassemble panel and generator cover.
Reconnection for Dual Voltage installation

⚠ Units reconnected for 120/240 volts dual voltage output will not be listed per RVIA.

⚠ Not applicable to Q-40G model.

Tools: Screwdriver, Pliers

  1. Gain access to generator panel interior by removing generator cover and front panel.
  2. Disconnect stator leads 11 and 33, T1 (red) and T3 (black) from main circuit breakers CB1 and CB2. Set aside T1 and T3.
  3. Disconnect stator leads 11 and 33 from the 4-tab terminal connector (TC).
  4. Disconnect stator leads 22 and 44 from the grounding terminal (GT).
  5. Disconnect one of the two T2 (white) leads from the grounding terminal.
  6. Remove existing circuit breakers CB1 and CB2. Install new appropriately rated circuit breaker.
  7. Connect stator leads 11 and 44 to new circuit breaker. Attach leads T1 (red) and T3 (black) to circuit breaker.
  8. Connect stator leads 22 and 33 to grounding terminal (GT).
  9. Be sure a neutral lead is installed and routed from grounding terminal for connection loads.
  10. Route leads T1 and T3 and grounded neutral lead through conduit clamp and out of panel.
  11. Reassemble panel and generator cover.
  12. Loads may be connected: T3 to Neutral 120 volts; T1 to Neutral 120 volts; T1 to T3 240 volts.

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

VoltagePhaseConnectionLeadsNotes
1201T1 (red) to NeutralT1, neutralAfter dual voltage reconnection.
1201T1 (red) to T2 (white)T1, T2Line-to-neutral; protected by circuit breaker CB1; up to 3600 watts.
1201T1 (red) to T2 (white) neutralT1, T2Protected by circuit breaker CB1; use separately for 120 volts, 1-phase, 60 Hz loads up to 3600 watts (3.6 kW).
1201T3 (black) to NeutralT3, neutralAfter dual voltage reconnection.
1201T3 (black) to T2 (white)T3, T2Line-to-neutral; protected by circuit breaker CB2.
1201T3 (black) to T2 (white) neutralT3, T2Protected by circuit breaker CB2; total unit load must not exceed maximum rating.
120singleFigure 1 - Connections for 120 Volts Onlydual 2-wire connection system; neutral groundedDual stator AC power windings; generator may have been installed to power 120 volts AC loads
120/2401Stator leads 11 and 44 to new circuit breaker; 22 and 33 to grounding terminal11, 44, 22, 33Reconnection procedure for dual voltage output.
120/2401Stator leads 11 and 44 to new circuit breaker; stator leads 22 and 33 to grounding terminal11, 44, 22, 33Dual voltage reconnection procedure. Not applicable to Q-40G.
120/240singleDual voltage - install jumper wire between the circuit breakers when reconnectingAll units are reconnectable to 120 and/or 240 volts dual voltage output; units are no longer listed per RVIA/ANSI when reconnected for dual voltage output. Refer to the Installation Manual.
2401T1 (red) to T3 (black)T1, T3Dual voltage; neutral T2.
2401T1 to T3T1, T3After dual voltage reconnection. Replace CB1 and CB2 with a single suitably rated circuit breaker.

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 does the Generac NP-50G use?

The Generac NP-50G is powered by the Generac GN-410 engine.

What fuel does the Generac NP-50G use?

The Generac NP-50G runs on gasoline.

What's the oil capacity on a Generac NP-50G?

The Generac GN-410 engine in the Generac NP-50G has an oil capacity of 1.4 liters.

What alternator does the Generac NP-50G use?

The Generac NP-50G uses a NP-50G/LP alternator. It has 2 poles.

Which oil filter part number does the Generac NP-50G take?

The Generac NP-50G uses oil filter part number 70185.

Which fuel filter part number does the Generac NP-50G take?

The Generac NP-50G uses fuel filter part number 87769.

Which air filter part number does the Generac NP-50G take?

The Generac NP-50G uses air filter part number 73111.

Troubleshooting

5

Symptoms & remedies

SymptomCauseRemedy
Engine won't crank.1. 15 amp fuse blown. 2. Loose or corroded or defective battery cables as necessary. 3. Battery is discharged or defective. 4. Defective starter contactor. 5. Defective starter motor.1. Replace fuse. 2. Tighten, clean or replace battery cables as necessary. 3. Recharge or replace battery. 4. Replace if defective. 5. Replace if defective.
Engine cranks but won't start1. Out of fuel. 2. Fuel shutoff valve is closed. 3. Fuel pump not operating 4. Automatic choke not operating property 5. Engine is flooded. 6. Fuel Filter is clogged. 7. Defective Controller Circuit Board.1. Replenish fuel. 2. Open fuel shutoff valve(s). 3. Repair or replace if defective. 4. Repair, replace or adjust. 5. Wait 5-10 minutes; try again. 6. Replace filter if clogged. 7. Replace bad circuit board
Engine spark plug defective.Clean, regap or replace as needed.
Bad ignition magneto on engine.Replace if defective.
Bad carburetor.Adjust, repair or replace.

Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing.

Parts

250
Part #DescriptionQtySystem
021713BCYLINDER HEAD GASKET1Gasket Amazon eBay $15.96
029459SPRING, BELT TENSION2Belt Amazon eBay
070185BRecommended Oil Filter1Oil filter Amazon $46.62 eBay $26.99
073111Air Filter1Air filter Amazon $11.69 eBay
074994HOSE 1\2 ID1Hose Amazon eBay
076701CRANKCASE GASKET1Gasket Amazon eBay $7.99
077643GASKET, EXHAUST OUTLET1Gasket Amazon eBay $13.87
078672SEAL, VALVE STEM D72Seal Amazon eBay $6.49
081646PRE-CLEANER, AIR FILTER1Air filter Amazon eBay $11.17
086999GASKET, OIL FILTER SUPPORT1Gasket Amazon eBay $10.99
089228GASKET, CARB/MANIFOLD1Gasket Amazon eBay $7.66
090239GASKET, EXHAUST MANIFOLD1Gasket Amazon eBay $3.99
090970GASKET, CARB/AIR FILTER1Gasket Amazon eBay $9.95
091039GASKET, MANIFOLD/HEAD1Gasket Amazon eBay $2.69
0A6858GASKET, COLLECTOR PAN1Gasket Amazon eBay $15.00
0A7975GOVERNOR GEAR ASSEMBLY1Pump Amazon eBay
0A8010GASKET, BLOWER HOUSING1Gasket Amazon eBay
0A8010AGASKET, BLOWER HOUSING1Gasket Amazon eBay
0A8407GASKET, BLOWER SIDE1Gasket Amazon eBay $20.00
0A8726GASKET, BLOWER / PAN1Gasket Amazon eBay $20.00
0A9539OIL DRAIN HOSE ASSEMBLY1Hose Amazon eBay
0C3150ROCKER COVER GASKET1Gasket Amazon eBay $5.45
0C4647GASKET, SOLENOID1Gasket Amazon eBay $20.00
0C6066SEAL, INLET REGULATOR1Seal Amazon eBay
0C6069GASKET, DIAPHRAGM1Gasket Amazon eBay
0E3812CRANKSHAFT SEAL2Seal Amazon eBay $13.95
0E7585Spark Plug (Champion RC14YC or equivalent)1Spark plug Amazon $8.99 eBay $12.77
21544MOTOR, STARTER-12VOLT 45 70185 1 FILTER, OIL1Oil filter Amazon eBay $61.00
21713BCYLINDER HEAD GASKET1Gasket Amazon eBay
21714CYLINDER HEAD W/VALVE 55 C3150 j ROCKER COVER GASKET1Gasket Amazon eBay
222373/8" LOCK WASHER17Gasket Amazon eBay
26925PIPE PLUG-3/8" 48 C3396C 1 CRANKCASE SUB ASSEMBLY1Spark plug Amazon eBay
303401/4" FUEL LINE (8" LONG)1Hose Amazon $39.99 eBay
35685CLAMP, HOSE #28 33° 22413 8 CAPSCR., HEX HD.-1/4"-20 x 1"1Hose Amazon eBay
43791Hose, 3/8" I.D.1Hose eBay KuduParts $26.00
4424981/4 Dia. 250mm Fuel Hose1Hose eBay
57822CLAMP, HOSE #82Hose Amazon eBay
60108GASKET, OIL FILTER SUPPORT1Sensor Amazon eBay
63463BARBED HOSE FITTING 34. C2417 1 GROUND STRAP1Hose Amazon eBay KuduParts $88.00
66386BRUSH HOLDER1Brush Amazon eBay
66480Air Cleaner Gasket1Gasket Amazon $69.99 eBay
70185FILTER, OIL1Oil filter Amazon $28.95 eBay $18.99 KuduParts $11.00
70941Air Cleaner Element1Air filter Amazon $55.95 eBay $67.59
70987ROCKER COVER GASKET1Gasket Amazon eBay
71987ROCKER COVER GASKET1Gasket Amazon eBay
72347SPARK PLUG-CHAMPION R12YC1Spark plug Amazon $7.19 eBay $9.99
72655CAMSHAFT SEAL2Seal Amazon eBay $10.80
73111FILTER, AIR1Air filter Amazon $11.69 eBay $17.99
73114FILTER, AIR1Air filter Amazon eBay
73132Spark Plug Boot-Spark plug Amazon eBay $52.79 FridayParts $19.99
74948FITTING, 5/16" COMPRESSION 76 ©1950 2 GASKET, EXHAUST4Gasket Amazon eBay
749941/2" I.D. x 10" LONG HOSE1Hose Amazon eBay
7521640" Poly Vinyl 4L Belt1Belt Amazon eBay
75229Slide Pan Gasket1Gasket Amazon eBay
75281High Temperature Switch1Sensor Amazon eBay
76216BELT (POLY V 4L)-40"1Belt Amazon eBay
76701CRANKCASE GASKET1Gasket Amazon eBay
77643Exhaust Outlet Gasket2Gasket Amazon $15.55 eBay $13.87
78672SEAL, VALVE STEM1Seal Amazon eBay
80308BREATHER GASKET2Gasket Amazon eBay
80342"O" RING 14 I.D. x 2.4 THICK2Seal Amazon eBay
81646PRE-CLEANER, AIR FILTER1Air filter Amazon eBay $9.44
82774FILTER, OIL1Oil filter Amazon eBay
83049Voltage Regulator1Avr eBay $52.99 FridayParts $114.30
8622413Y%4-20 x 1° HEX HEAD BOLT 70 ©2078 1 OIL DRAIN HOSE4Hose Amazon eBay
86254"O" RING 17.8 I.D. X 2.4 THICK1Seal Amazon eBay
86729Contactor, Starter1Starter Amazon eBay $18.99 KuduParts $41.00
86999GASKET, OIL FILTER SUPPORT1Gasket Amazon eBay
87769FUEL FILTER1Fuel filter Amazon $43.25 eBay $18.99
89228GASKET, CARB/MANIFOLD1Gasket Amazon eBay $5.99 FridayParts $455.99
90239GASKET, EXHAUST MANIFOLD1Gasket Amazon eBay
90475FUEL PUMP1Pump Amazon $59.99 eBay $25.93
90747BREATHER VALVE ASSEMBLY1Crankcase breather eBay
90970GASKET, CARB/AIR FILTER1Gasket Amazon eBay
91039GASKET, MANIFOLD/HEAD1Gasket Amazon eBay
91519GASKET, OIL FILTER SUPPT.1Gasket eBay
91648"O" Ring DIA.-14 X 3 WALL1Hose Amazon eBay
92363Heat Riser Box Gasket1Gasket Amazon eBay
92645Collector Pan Gasket1Gasket Amazon eBay
95277Outlet Adaptor Gasket1Gasket eBay
A5360OIL FILTER SUPPORT1Oil filter Amazon eBay
A6358COVER, TOP FLYWHEEL 35 90892 1 SUPPORT, OIL FILTER1Oil filter Amazon eBay
A6562CARBURETOR1Gasket Amazon eBay $21.99 FridayParts $26.86
A6564BASE, AIR CLEANER 27 = 91161 1 BOLT, SHOULDER M6-1.0 x1Air filter Amazon eBay
A6581BREATHER, TUBE1Hose Amazon eBay
A6796GASKET, MUFFLER1Gasket Amazon eBay
A6858GASKET, COLLECTOR PAN1Gasket Amazon eBay
A6898OIL FILTER SUPPORT 79° = 73132 2 BOOT, SPARK PLUG1Oil filter Amazon eBay
A6922FUEL TUBE, METAL1Hose Amazon eBay
A7299OIL DRAIN/DIPSTICK TUBE 49 90239 1 GASKET1Gasket Amazon eBay
A8010GASKET, BLOWER HSNG1Gasket Amazon eBay FridayParts $29.50
A8010AGASKET, BLOWER HSNG1Gasket Amazon eBay
A8407GASKET, BLOWER SIDE1Gasket Amazon eBay
A8584SWITCH-OIL PRESSURE1Sensor Amazon eBay
A8693GASKET, BLOWER HOUSING1Gasket Amazon eBay
A8726GASKET, BLOWER / PAN1Gasket Amazon eBay
A8875ASSEMBLY, DIPSTICK & CAP1Gasket Amazon eBay
A906410KW ROTOR ASSEMBLY 14 29459 2 BELT TENSIONING SPRING1Belt Amazon eBay KuduParts $48.00
A9539OIL DRAIN HOSE ASSEMBLY1Hose Amazon eBay
C1112V-BELT 04079 (8”)1Belt Amazon eBay
C1228DECAL, AiR CLEANER 13"1Air filter Amazon eBay
C1354ASTARTER, WRAPPER1Starter Amazon eBay
C1441GASKET SET, BLOWER 26 22145 3 5/16 FLAT WASHER1Gasket Amazon eBay
C1546O-RING, 2-3/8" HEAD SCREW1Seal Amazon eBay
C1547O-RING, 7/8" 75 =75789 4 5/16-18 x 34" SOCKET1Seal Amazon eBay
C1557O-RING, 13/16" LD. 74 01624 2 EXHAUST GASKET1Gasket Amazon eBay
C1625GASKET, INTAKE 54 65852 1 CLIP2Gasket Amazon eBay
C1626GASKET, CARBURETOR 58 22129 6 5/16" LOCK WASHER1Gasket Amazon eBay
C1702BREATHER HOSE1Hose Amazon eBay
C1753ALTERNATOR PULLEY 21 C1751 1 ALTERNATOR FAN MODEL1Alternator Amazon eBay
C2206BARBED HOSE FITTING 31 22237 2 3/8" LOCK WASHER1Hose Amazon eBay
C2310GASKET, SET-MUFFLER BOX1Gasket Amazon eBay
C2423NUT, SPEED CONTROL 69 43790A 1 90 DEG. HOSE FITTING1Hose Amazon eBay
C3150ROCKER COVER GASKET1Gasket Amazon eBay FridayParts $45.00
C5401GASKET, MUFFLER1Gasket Amazon eBay
RC12YCSpark Plug1Spark plug Amazon $19.99 eBay $12.90 FridayParts $19.99
0213BSTAND-OFF4Service part / kit Amazon eBay
04164CRANKSHAFT ASSEMBLY1Service part / kit Amazon eBay
075242SPRING, GENERATOR MOUNT4Service part / kit Amazon eBay
086516VALVE, EXHAUST2Service part / kit Amazon eBay $26.00
086517INTAKE VALVE1Service part / kit Amazon eBay $11.49
0A5771OIL PRESSURE SPRING1Service part / kit Amazon eBay $8.00
0A6778SPRING, A/L GOV. LEVER-BELLCRANK1Service part / kit Amazon eBay $11.99
0A6780SPRING, A/L BELLCRANK-CARB.1Service part / kit Amazon eBay
0A8222SPRING, GOVERNOR1Service part / kit Amazon eBay
0C4391VALVE SPRING2Service part / kit Amazon eBay $12.50
0C5764ASPRING, REGULATOR 45N/M 29MM1Service part / kit Amazon eBay
0C6070SPRING-SOLENOID PLUNGER1Service part / kit Amazon eBay
20753HHCS-M6-1.0 x 60 LG 35 22145 1 M8-FLAT WASHER1Service part / kit Amazon eBay
21533PISTON RING SET1Service part / kit Amazon eBay $27.96
21742M10 1.5 x 105MM HHFL 37 A8930 1 GOVERNOR GEAR ASSEMBLY4Service part / kit Amazon eBay
22097LOCK WASHER 1/42Service part / kit Amazon eBay
22127HEX NUT 7/4"-201Service part / kit Amazon eBay
22129LOCK WASHER-M83Service part / kit Amazon eBay
221313/8" FLAT WASHER4Service part / kit Amazon eBay
22145Axle 6000# - 57” frame Hydraulic brake2Service part / kit Amazon eBay KuduParts $90.00
22152LOCK WASHER NO. 106Service part / kit Amazon eBay
222413/8"- 16 HEX NUT2Service part / kit Amazon eBay
222595/16"- 18 HEX NUT4Service part / kit Amazon eBay
22264M4 LOCK WASHER 45 A9992B 2 END BRACKETS9Service part / kit Amazon eBay FridayParts $35.00
22287%-20 x 9%" HEX HEAD LOCK WASHER2Service part / kit Amazon eBay FridayParts $60.99
22413%-20 x 1" HEX HEAD BOLT4Service part / kit Amazon eBay FridayParts $52.85
22473WASHER, FLAT 1/4" 54 22152 8 #10 LOCK WASHER3Service part / kit Amazon eBay
22507A23116Service part / kit Amazon eBay
2267615 Amp Fuse1Service part / kit Amazon $20.06 eBay
22985M4/#6 FLAT WASHER1Service part / kit Amazon eBay
23484FSNAP BUSHING A9947 1 25A CIRCUIT BREAKER (6KW)3Service part / kit Amazon eBay
23897#10 FLAT WASHER3Service part / kit Amazon eBay
2491244-20 X 5/8" TAPTITE NO. 10-32 x 4"1Service part / kit Amazon eBay
249408-32 x %" TAPTITE 25 77052 2 LUG .25-TAB #10-SCRW4Service part / kit Amazon eBay
2717AGROMMET, RUBBER1Service part / kit Amazon eBay
27628HEX NUT-3/8"-16 POSITION1Service part / kit Amazon eBay
29289SCROLL, FLYWHEEL1Service part / kit Amazon eBay
31580PIPE NIPPLE, 3/8" x 8.5" LG. 52 40976 2 M8- 1.25 x 20 SOCKET HEAD1Service part / kit Amazon eBay
3163H8KW ROTOR ASSEMBLY 13 75215 2 SPRING CENTERING WASHER1Service part / kit Amazon eBay
31971BALL BEARING1Service part / kit Amazon eBay
32300HOLDER, FUSE 39 51716 4 M5-0.8 HEX NUT1Service part / kit Amazon eBay KuduParts $57.00
33873Manual-off-auto switch1Service part / kit Amazon eBay
3590AFUSE, 5A 600 VOLT2Service part / kit Amazon eBay
36932SCREW, PAN HEAD6Service part / kit Amazon eBay
38353RUBBER MOUNT 24 23152 4 3/8"-16 x 3/4" HEX HEAD BOLT4Service part / kit Amazon eBay
40213PCB SUPPORT, SNAP-IN 34 22473 1 M6 FLAT WASHER4Service part / kit Amazon eBay FridayParts $37.59
40976SOCKET HD. CAPSCR., M82Service part / kit Amazon eBay
42568CAPSCREW, HEX HD. - M6-1.0 X 20MM2Service part / kit Amazon eBay
43181M3-0.5 x 10 PAN HEAD 50 38150 6 M4 FLAT WASHER6Service part / kit Amazon eBay
43182M3 LOCK WASHER 49 75475 4 M4 x 0.7 x 10 PMMS6Service part / kit Amazon eBay FridayParts $24.62
45756M6-1.0 x 10 TAPTITE 40 89280D 1 OIL SUMP ASSEMBLY2Service part / kit Amazon eBay
48850TERMINAL BLOCK-51Service part / kit Amazon eBay
51715M4-0.7 HEX NUT 46 A9992C 1 INSULATING PLATE5Service part / kit Amazon eBay KuduParts $42.00
52108Muffler1Service part / kit Amazon eBay
5224GENGINE PULLEY, 8 KW 23 22237 4 3/8" LOCK WASHER1Service part / kit Amazon eBay
545023A Circuit Breaker1Service part / kit Amazon eBay
5689310-24 x %" CRIMPTITE2Service part / kit Amazon eBay
57073NEUTRAL LUG-JUNCTION 29 = 73591 2 FUSE HOLDER1Service part / kit Amazon eBay
57821CAPSCR., HEX HD.-M8-1.252Service part / kit Amazon eBay
59637SCREW, TAPTITE 3/8"-16 x4Service part / kit Amazon eBay
62684LUG, GROUND 27 = C2261 1 COVER1Service part / kit Amazon eBay
64113WING NUT, M6-1.01Service part / kit Amazon eBay
64182M6-1.0 x 16 SOCKET HEAD4Service part / kit Amazon eBay
65795Battery Charge Rectifier1Service part / kit Amazon eBay $33.96
66849M5-0.8 x 1 5mm Taptite screw2Service part / kit Amazon eBay
71978CONNECTING ROD WITH CAP 32 A5776 1 PRESSURE RELIEF BALL1Service part / kit Amazon eBay
71980PISTON PIN 34 78645 1 GOVERNOR RETAINER1Service part / kit Amazon eBay
71983PISTON PIN RETAINER (C-RING)2Service part / kit Amazon eBay
7237986/8BKW UPPER BEARING 16 45771 4 M8 NUT1Service part / kit Amazon eBay
72379BBearing Carrier, Upper-Service part / kit Amazon eBay
72694PIVOT BALL STUD 50 86002 1 OUTER GEROTOR2Service part / kit Amazon eBay
72696JAM NUT (ROCKER ARM) 51 86026 1 INNER GEROTOR2Service part / kit Amazon eBay
731466/8BKW NYLON SLIDES 21 22145 2 M8 FLAT WASHER4Service part / kit Amazon eBay
73159BALL BEARING1Service part / kit Amazon eBay
73591FUSE HOLDER2Service part / kit Amazon eBay
74908M5-0.8 x 10 TAPTITE 22 36932 6 SCREW, PAN HEAD4Service part / kit Amazon eBay
74975ENCLOSURE COVER 19 22131 1 FLAT WASHER-3/8"1Service part / kit Amazon eBay
75210ATERMINAL BLOCK . 33 A2053 1 M6-1.0 x 65 HEX HEAD1Service part / kit Amazon eBay
75211GASEOUS FUEL REGULATOR1Service part / kit Amazon eBay FridayParts $15.89
75214GAS REGULATOR1Service part / kit Amazon eBay
75224DENGINE PULLEY 22 22131 5 3/8" FLAT WASHER1Service part / kit Amazon eBay
75234RESISTER, 1 OHM 25W 42 A9947B 1 45A CIRCUIT BREAKER (10KW)1Service part / kit Amazon eBay
75235M5-0.8 x 30 HEX HD. 56 31879 2 #4 FLAT WASHER4Service part / kit Amazon eBay
75476M4-0.7 x 16 PHILLIPS 43 A9992A 8 TERMINAL BLOCK2Service part / kit Amazon eBay
75995Bearing Carrier, Lower1Service part / kit Amazon eBay
76361THRUST WASHER1Service part / kit Amazon eBay
77006Generator stud4Service part / kit Amazon eBay $8.49
77033SOLDERLESS LUG6Service part / kit Amazon eBay
77158OIL SCREEN PICKUP ASSEMBLY1Service part / kit Amazon eBay KuduParts $81.00
77441MANUAL TRANSFER HANDLE1Service part / kit Amazon eBay $29.00
78645GOVERNOR RETAINER1Service part / kit Amazon eBay
78658GOVERNOR ARM ‘R" PIN1Service part / kit Amazon eBay
78659THRUST WASHER2Service part / kit Amazon eBay $10.00
78691COVER, OIL PRESSURE1Service part / kit Amazon eBay
78694PUSH ROD GUIDE PLATE 53 90416A 1 CRANKSHAFT ASSEMBLY1Service part / kit Amazon eBay
79246M6- 1.0 x 16 HEX HD. & LOCK6Service part / kit Amazon eBay
80077M4-0.7 x 20 PHILLIPS 47 A9872 1 DIN RAIL1Service part / kit Amazon eBay KuduParts $28.00
80309BREATHER COVER 43 78659 2 THRUST WASHER1Service part / kit Amazon eBay
80338OIL BREATHER SEPARATOR1Service part / kit Amazon eBay
83048Voltage Regulator1Service part / kit Amazon eBay $325.07
83512TAPTITE-M8-1.25 x 15 LG CRANK TO CARB.2Service part / kit Amazon eBay
83897TAPPET, SOLID 49 84430 1 BALANCER2Service part / kit Amazon eBay
83907ROCKER ARM 54 90747 1 BREATHER VALVE ASSEMBLY2Service part / kit Amazon eBay
83921BEARING TUBE SHAFT1Service part / kit Amazon eBay
843181M3-0.5 x 10 PAN HEAD 50 =. 38150 6 M4 FLAT WASHER6Service part / kit Amazon eBay
86002OUTER GEROTOR1Service part / kit Amazon eBay
86026INNER GEROTOR1Service part / kit Amazon eBay
86514VALVE SPRING RETAINER 58 79246 4 M6-1.0 x 16MM HEX HEAD.2Service part / kit Amazon eBay
86515VALVE SPRING KEEPER SCREW. AND LOCK WASHER4Service part / kit Amazon eBay $9.95
86516EXHAUST VALVE 59 83921 1 BEARING TUBE SHAFT1Service part / kit Amazon eBay
86517INTAKE VALVE1Service part / kit Amazon eBay
89473Bimetal Choke Assembly1Service part / kit eBay FridayParts $260.20
89673WASHER, VALVE SPRING 63 76329 1 OJL FILL PLUG2Service part / kit Amazon eBay $9.95
89685GROMMET, RUBBER1Service part / kit Amazon eBay
91188ACarburetor1Service part / kit eBay $29.59
91306Choke Solenoid1Service part / kit eBay
91308VALVE SPRING 63 76329 1 OIL FILL PLUG2Service part / kit Amazon eBay $9.95
91646DEFLECTOR, EXHAUST 36 91159 1 BUSHING, RUBBER1Service part / kit Amazon eBay
92079SCREW, TAPTITE M6-1.0 x2Service part / kit Amazon eBay
92113dk a_i Dh ok1Service part / kit Amazon eBay
92164GOV. SPRING -ADJUSTMENT1Service part / kit Amazon eBay
92362ROCKER COVER W/FILL1Service part / kit Amazon eBay
9257222717A1Service part / kit Amazon eBay
92675AExhaust Muffler1Service part / kit eBay
9280DOIL SUMP ASSEMBLY1Service part / kit Amazon eBay
93064OIL FILL CAP ASSEMBLY1Service part / kit Amazon eBay
95685CLAMP, #28 56 C1863 1 BAFFLE1Service part / kit Amazon eBay KuduParts $54.00
956893CRIMPTITE-#10-24 x 1/2" LG 15LG2Service part / kit Amazon eBay
96290STUD, CARB. MOUNT M6-1.0 x BELLCRANK2Service part / kit Amazon eBay
96699PISTON 37 A8930 1 GOVERNOR GEAR ASSEMBLY1Service part / kit Amazon eBay
9673JSRV C3677 15Service part / kit Amazon eBay
A1442FLANGED HEX HD. CAP- 35 78691 4 COVER, OIL PRESSURE8Service part / kit Amazon eBay
A1495M4-0.7 x 10 TAPTITE 55 C1226 1 HARNESS (NOT SHOWN)2Service part / kit Amazon eBay
A1658WASHER % SHAKEPROOF 23 =77033 6 SOLDERLESS LUG1Service 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

RatingLoadL/hgal/h
Continuous25%0.610.16
Continuous50%1.210.32
Continuous75%1.740.46
Continuous100%2.380.63

Available documents

Owner's manual — A6448 (Generac)Owner's manual — A6448 (Generac)Parts manual — 0A6448 (Generac)Parts manual — Chart4 (Generac)Service manual — 91355 (Generac)Service manual — 91355 (Generac)
Full service, cheapest listings

Priced items from this model's own parts manual.

Air filter 73111$11.69
Fuel filter 87769$18.99
Oil filter 70185$18.99
Spark plug 72347$7.19
4 priced items$56.86