Home›Engines›John Deere PE6068HFG94

John Deere PE6068HFG94 Engine

The John Deere PE6068HFG94 is a 6.8 L 6-cylinder turbocharged engine rated at 1800 rpm, producing up to 162 kW. It powers generator sets from Generac and Magnum, including the MMG175, MMG175 and MMG175 Super Start. It holds 31.2 L (8.2 gal) of oil and 29.8 L (7.9 gal) of coolant.

Also known as: John Deere PE6068HFG94

Part of the John Deere 6068 engine family — 92 variants share parts & fitment.

6.8 L
Displacement
6
Cylinders
1800 rpm
Rated speed
162 kW
Gross power

Engine specifications

Oil capacity31.2 L
Coolant capacity29.8 L
Displacement6.8 L
Cylinders6
Aspirationturbocharged
Rated speed1800 rpm
Gross power162 kW

Generator sets powered by this engine

3

Shared across brands: Generac, Magnum

How to read your John Deere engine serial & model number →

Common problems

15
  • High Coolant Temperature Shutdown
    Cause: Low coolant level
    Fix: Add coolant if needed. Allow engine to cool, then check coolant level in radiator. Restart engine and check coolant temperature (on controller). Stop engine immediately if coolant temperature is 210°F (99°C) or more.
  • Low Oil Pressure Shutdown
    Cause: Low oil level
    Fix: Check oil level on dipstick. Add oil, if needed.
  • Low Fuel Level Shutdown
    Cause: Low fuel level
    Fix: Check fuel level in LCD window of controller.
  • Overcrank Shutdown
    Cause: Fuel level low
    Fix: Check fuel level in tank. Check fuel pump operation. Check air filter for blockage. See the OEM engine operator's manual for additional information.
  • Low Coolant Level Shutdown
    Cause: Low coolant level
    Fix: Allow engine to cool, then check coolant level in radiator. Add coolant if needed.
  • To Service 1
    Fix: Oil Maintenance
  • Overspeed or Underspeed Shutdown
    Cause: Frequency setting incorrect
    Fix: Disconnect all loads and restart unit. Read frequency (Hz) in the LCD window on controller. Frequency should read 60 Hz. If frequency is above 60 Hz, engine speed will need to be adjusted. Contact Generac Mobile Products to adjust.
  • WrnMaintenance (Time to Service reminder displayed)
    Cause: Unit is due for maintenance or service (250 hour interval)
    Fix: Reset the running hours to 250: with the unit shut down, power up the controller with the Control On/Off toggle switch; press PAGE SELECT; press the down button to move the > cursor to Engine Protect; press ENTER; press ENTER again; press the up button and reset the current run time hour setting to 250; press ENTER to save; move the CONTROL ON/I toggle switch to the CONTROL OFF/O position
  • Very high soot load warning SPN:3719.16
  • Very high soot load - needs service SPN:3719.00
  • TimingSensor SPN:637
  • PositionSensor SPN:636
  • Intake Temp SPN:105
  • InjectorCyl#6 SPN:656
  • InjectorCyl#5 SPN:655

Compiled from service & troubleshooting documentation across every generator set that uses the John Deere PE6068HFG94.

Service intervals

17
ItemActionHoursMonthsNotes
Engine mountsCheck500 hr12 mo
Oil vapor recirculation system/non-return valveCheck250 hr
Air intake hoses, connections, and systemCheck500 hr
Automatic belt tensioner and belt wearCheck500 hr12 moBelt removed and checked for wear at 500 hour/12 month service interval
BatteryCheck500 hrService battery
Cooling systemCheck500 hr
Engine electrical ground connectionCheck500 hr
Engine oil and oil filterChange500 hr12 moFirst service — Also 100 hrs break-in period; interval reduced to every 250 hours if not using John Deere Plus 50 II engine oil
Fuel filter elementsReplace500 hr12 mo
Leveling jack(s)Lubricate500 hr
Oil vapor recirculation filterReplace500 hr
Generator drive plate torqueCheck3000 hr36 moSee Checking Generator Drive Plate Torque
Air cleaner elementsReplace3000 hr36 mo
Alternator and fan beltsReplace3000 hr36 mo
Diesel Particulate Filter (DPF) ash removalReplace3000 hrExpected service interval at least 3,000 or 4,500 hours; by OEM authorized dealer only
FusesCheck3000 hr36 mo
ThermostatsTest3000 hr36 mo

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

21
TypeItemValueUnitCondition
PressureEngine oil pressure (minimum on start)5psi (34 kPa)within five seconds
PressureEngine oil pressure (normal operating)35-80psi (241-552 kPa)
PressureOil pressure20psishutdown
PressureOil pressure25psiwarning
SpeedEngine governed operating speed1800rpm
SpeedOutput frequency (no load)60Hzno loads connected
TemperatureCoolant temperature104°Cwarning
TemperatureCoolant temperature110°Cshutdown
TemperatureCoolant temperature (normal operating)180-200°F (82-93°C)average ambient 70°F (21°C)
TemperatureCoolant temperature gauge range150-250°F (66-121°C)
TemperatureHigh coolant temperature shutdown210°F (99°C)
TorqueGenerator drive plate bolt36 (49)ft-lbs (Nm)
TorqueGenerator drive plate bolt46 (63)ft-lbs (Nm)
TorqueGenerator drive plate bolt47 (64)ft-lbs (Nm)
TorqueWheel lug nuts - first pass20-25ft-lbs (Nm)
TorqueWheel lug nuts - second pass50-60ft-lbs (Nm)
TorqueWheel lug nuts - third pass90-120ft-lbs (Nm)
VoltageBattery voltage11VDCunder voltage
VoltageBattery voltage15VDCover voltage
VoltageBattery voltage (normal, engine running)12-14V12 volt systems
VoltageBattery voltage (normal, engine running)24-26V24 volt systems

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
CoolantPropylene glycol base antifreezeDo not use chromate base rust inhibitor with propylene glycol base antifreeze, boosters or additivesabove -24°CMixtures (antifreeze/water by volume -> freezing point): 40/60 = -12°F (-24°C); 50/50 = -34°F (-36°C); 60/40 = -54°F (-48°C); 70/30 = -90°F (-67°C) (maximum freeze protection is at 70%)
Engine oilJohn Deere Plus 50 IIHigh quality detergent oil, appropriate classification and viscosity for engine type/ambient temperatureFactory filled with engine oil of a grade recommended by the engine supplier; consult IASD or engine service manual
Engine oilJohn Deere Plus 50 II recommended31.2 qtChange interval: 500 hours on John Deere Plus 50 II; 250 hours on other oils
FuelClean diesel fuel1295.0 LUse only clean diesel fuel

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
Fine Voltage Adjustment adjustment
  1. With the unit running, press the Generator button.
  2. Press Enter; the voltages displayed begin flashing.
  3. Use ▲ and ▼ to adjust the voltage.
  4. Press Enter to confirm the new voltage; voltages stop flashing.
To Achieve 240V in 208V Configuration adjustment

⚠ Equipment Damage. Verify voltage application before making changes to factory settings.

  1. Shut down unit, move Control Power switch to ON (I).
  2. Press a directional arrow to enter the maintenance screens.
  3. Press ► until the Status tab shows the Power Zone™ application version (must be V4 or higher).
  4. Press any directional arrow to enter maintenance screens.
  5. Press Enter and O simultaneously to display the Configuration menu.
  6. Navigate to Config Selection, then Config to Edit, then Selected Configuration.
  7. Select Alternative Configuration 1.
  8. Enter Password Entry and enter password 4444 if applicable.
  9. Highlight Generator, then Generator voltage, then Over Voltage Alarms.
  10. Set Alarm Trip to 153V.
  11. Set Pre-alarm Trip to 151V.
  12. Press and hold Enter for five seconds until the Saving screen appears.
Checking Generator Drive Plate Torque maintenance
  1. Disconnect battery.
  2. Remove generator fan guard.
  3. Torque each of the drive plate bolts to the specification shown in the table.
  4. Install generator fan guard.
  5. Connect battery.
Force a Manual Exhaust Filter Cleaning maintenance

⚠ Check for adequate fuel level before beginning exhaust filter cleaning.

  1. Open the control door and locate the switch labeled EXHAUST FILTER CLEANING.
  2. Move and hold the switch in ON/FORCED (I) for five seconds.
  3. On the DPF Status screen verify the Regeneration indicator shows DPF Lamp - Solid.
Resetting the Maintenance Alarms maintenance
  1. With unit shut down, move Control Power switch to CONTROL ON (I).
  2. Press any directional arrow to enter the maintenance screens.
  3. Press Enter and O simultaneously to display the Configuration menu.
  4. Press ▼ to move to the Maintenance group.
  5. Press ► to access sections; highlight the Maintenance section.
  6. Press ► to access parameters and highlight the alarm to reset.
  7. Press Enter to select editable parameters; highlight Reset.
  8. Press Enter to reset the selected maintenance alarm.
  9. To save changes, press and hold Enter for five seconds.
Trailer Wheel Bearing Lubrication maintenance

⚠ Use only a high quality grease made specifically for lubrication of wheel bearings.

Tools: Grease gun

  1. Remove the small rubber plug on the grease cap.
  2. Attach a standard grease gun fitting to the grease fitting.
  3. Pump grease into the fitting until new grease is visible around the nozzle.
  4. Wipe any excess grease from the hub with a clean cloth.
  5. Replace the rubber plug when finished.
AUTO (Remote) Starting the Unit operation

⚠ Verify contacts on any remote switch are open before entering AUTO mode.

Tools: Jumper wire (minimum 16 gauge)

  1. Perform a manual start at least once to verify correct operation.
  2. To check remote start circuit, remove wires from remote start terminal block.
  3. Press AUTO/MANUAL Mode button so LCD shows Auto Mode.
  4. Attach a minimum 16 gauge jumper wire across the two remote start terminals.
  5. Engine should crank, start and run; remove jumper to stop.
  6. Reconnect remote start switch (transfer switch) wires.
  7. Verify unit is in AUTO mode.
  8. Close the main circuit breaker (ON/I) and lock all access doors.
Disabling Automatic (AUTO) Exhaust Filter Cleaning operation

⚠ Risk of Burn. Stay clear of the exhaust system during operation and exhaust filter cleaning.

  1. Open the control door and locate the switch labeled EXHAUST FILTER CLEANING.
  2. Move the switch to DISABLED (O).
  3. On the DPF Status screen verify the Disabled Regeneration indicator shows DPF Inhib - Solid.
Enable Exhaust Filter Cleaning operation
  1. Open the control door and locate the switch labeled EXHAUST FILTER CLEANING.
  2. Move the switch to ON/AUTO (I/O).
  3. On the DPF Status screen verify the Regeneration indicator shows DPF Lamp - Solid.
Lifting the Unit operation

⚠ Always remain aware of people and objects around when moving or lifting the unit.

  1. Attach a sling or hook directly to the central lift point only if devices are in good condition.
  2. Verify the equipment used to raise the unit has sufficient capacity.
  3. Keep doors and hood closed and locked while moving or lifting.
Manually Starting the Unit operation

⚠ Asphyxiation. Running engines produce carbon monoxide.

  1. Move the Control Power switch to ON (I).
  2. Press the AUTO/MANUAL Mode button to enter MANUAL mode.
  3. Press the green Engine Start (I) button to initiate startup.
  4. If engine does not start, it pauses 15 seconds; up to three crank cycles.
  5. If Fail to Start alarm, wait two minutes then press Enter to clear.
  6. Verify AC output voltage is correct (see Fine Voltage Adjustment).
  7. Check frequency (Hz) reads approximately 60 Hz with no load.
  8. Switch main circuit breaker ON (I) and add loads via receptacle breakers.
Set the Controller Clock operation
  1. Navigate to the Maintenance group and press ► to access it.
  2. Press ► to select the Time section.
  3. Set the time and date to the correct local time.

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
120V3Low DeltaT1-T12 (dedicated 12 lead generator)Dedicated 12 lead generators option
208/120V3Low WyeT1-T12 (dedicated 12 lead generator)Dedicated 12 lead generators option
240/120V1Low Zig ZagT1-T12 (dedicated 12 lead generator)Dedicated 12 lead generators option
240/120V3High DeltaT1-T12 (dedicated 12 lead generator)Dedicated 12 lead generators option
480/240V1High Zig ZagT1-T12 (dedicated 12 lead generator)Dedicated 12 lead generators option
480/277V3High WyeT1-T12 (dedicated 12 lead generator)Dedicated 12 lead generators option

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

Parts cataloged across the John Deere 6068 family

300
Part #DescriptionCategory
100-001Air FilterAir filter
24-21000Air FilterAir filter
60205MOUNT, CONTROL BOX - COMMONAir filter
85400737OUTER AIR FILTERAir filter
85400786INNER AIR FILTERAir filter
85403921AIR FILTER HEAVY DUTYAir filter
C03327Air CleanerAir filter
C03396AIR FILTERAir filter
G030077Air Cleaner Element (Engine) PrimaryAir filter
G030078Air Cleaner Element (Engine) SecondaryAir filter
GM100703Element, PrimaryAir filter
GM100704Element, SafetyAir filter
GM90735Air CleanerAir filter
GM91358Element, Air CleanerAir filter
GM92823Element, Air Cleaner SafetyAir filter
GM94203Heavy Duty Air CleanerAir filter
MQ-125-AIR-FILTERAir FilterAir filter
DZ114956ALTERNATORAlternator
DZ117503ALTERNATORAlternator
DZ123153ALTERNATORAlternator
LSA462M3AlternatorAlternator
RE505895ALTERNATOR (12V, 75A)Alternator
RE506196Alternator 12 Volt 55 AmpAlternator
RE533516ALTERNATORAlternator
RE533653ALTERNATORAlternator
RE533654ALTERNATORAlternator
RE537146ALTERNATOR (28V, 50A) (3142)Alternator
RE537507ALTERNATOR (12V, 90 A) (31AE)Alternator
RE537508ALTERNATORAlternator
RE550906ALTERNATORAlternator
RE555751ALTERNATORAlternator
RE558675ALTERNATORAlternator
RE558676ALTERNATORAlternator
RE558678ALTERNATORAlternator
RM100224ALTERNATOR (REMAN FOR RE505895) (12V, 75A) (3135)Alternator
SE501341(REMAN FOR AT161324, DZ114957) (3142)Alternator
SE502560(3164)Alternator
SE502628ALTERNATOR (REMAN FOR RE533654) (12V, 120A) (3141)Alternator
85402451VOLTAGE REGULATORAvr
8972824026Battery Acid charge Pb-Ca maintenance free, 24V - 1100 CCABattery
MQ-125-BATTERYBatteryBattery
85425460BELTBelt
DZ114929FAN BELT (LGTH = 1655 mm)Belt
DZ115455FAN BELT (LGTH = 1550 mm)Belt
DZ115812FAN BELT (LGTH = 1680 mm)Belt
DZ117267FAN BELT (LGTH = 1690 mm)Belt
DZ117268FAN BELT (LGTH = 1530 mm)Belt
DZ118556FAN BELTBelt
DZ118557FAN BELTBelt
DZ118558FAN BELTBelt
DZ118559FAN BELTBelt
DZ118560FAN BELTBelt
DZ118561FAN BELT; LGTH = 1750 mm (24JX)Belt
DZ118764FAN BELT (LGTH = 1525 mm)Belt
DZ118781FAN BELT (LGTH = 1700 mm)Belt
DZ118786FAN BELTBelt
DZ118815FAN BELT (LGTH = 1725 mm)Belt
DZ119018FAN BELTBelt
DZ119059FAN BELTBelt
DZ119060FAN BELT (LGTH = 1555 mm)Belt
DZ119061FAN BELT (LGTH = 1540 mm)Belt
DZ119062FAN BELTBelt
DZ119063FAN BELTBelt
DZ119416FAN BELTBelt
DZ119477FAN BELT (LGTH = 1565 mm)Belt
DZ119478FAN BELT (LGTH = 1570 mm)Belt
DZ119515FAN BELTBelt
DZ119516FAN BELTBelt
DZ119520FAN BELTBelt
DZ119521FAN BELTBelt
DZ119522FAN BELTBelt
DZ119530FAN BELT (LGTH = 1675 mm)Belt
DZ119531FAN BELTBelt
DZ119533FAN BELTBelt
DZ119715FAN BELTBelt
DZ121128FAN BELT; LGTH = 1725 mm (24JW)Belt
DZ121129FAN BELTBelt
DZ121133FAN BELTBelt
GM70424-1Fan Belt (12V)Belt
GM70424-2Fan Belt (24V)Belt
GM70798-1Fan BeltBelt
GM70798-2Fan BeltBelt
GM70798-3Fan BeltBelt
GM70798-4Fan BeltBelt
GM84749Fan BeltBelt
L114292FAN BELTBelt
MQ-125-BELTV-BeltBelt
R123308Drive Belt, L1066H Late Production and M1066H allBelt
R123437Drive Belt, LP-MP668T-H (with turbo)Belt
R123439Drive Belt, LP-MP445D (non-turbo)Belt
R123457Drive Belt LP-MP668T-H (with turbo, formerly #R123464)Belt
R123464Drive Belt, LP668D (non-turbo, replaces R123463)Belt
R134625FAN BELT (LGTH = 1645 mm)Belt
R500277FAN BELTBelt
RE518097Belt TensionerBelt
T282795FAN BELTBelt
T428692FAN BELT (LGTH = 1665 mm)Belt
T428724FAN BELT (LGTH = 1575 mm)Belt
T428725FAN BELTBelt
T428818FAN BELTBelt
T428820FAN BELT (LGTH = 1580 mm)Belt
T428822FAN BELTBelt
T428823FAN BELTBelt
T428825FAN BELTBelt
T428863FAN BELTBelt
VP64S17Pump BeltBelt
011064Cold Weather OperationCold weather operation
RM100100CONTROLLERController
RM100131CONTROLLERController
SE502800CONTROLLERController
SE502801CONTROLLER (REMAN FOR RE520953) (8498) (8420) (8414)Controller
362140-SMain controller circuit boardController board
950-1682Coolant filterCoolant filter
MOOOOO-20001QAuto START/STOP Engine Controller (ECU)ECM / ECU
RE522680Short Block Assembly (L-M1066H and NL1066H4)Engine
5990101Power switching device (contactor)Exerciser switch
950-1683Pilot Hydraulic FilterFilter
950-2002Secondary Fuel FilterFilter
MQ-125-FUEL-FILTERFuel FilterFilter
MQ-125-OIL-FILTEROil FilterFilter
85403756BATTERY ELECTROLYTEFluid
G122208Clarke Eng Fluid - 5 galFluid
G122209Clarke Eng Fluid -1 galFluid
MQ-125-COOLANTCoolantFluid
MQ-125-OILEngine OilFluid
TY22041John Deere ENGINE BREAK-IN OIL (SAE 10W-30)Fluid
24-51003Fuel Filter without Drain ValveFuel filter
24-51005Fuel Filter with Metal Drain ValveFuel filter
85400976FUEL FILTERFuel filter
85403525FUEL FILTER SEPARATORFuel filter
85431120FUEL FILTERFuel filter
950-2001Fuel FilterFuel filter
CO2775Element, Fuel Water SeparatorFuel filter
CO2776Element, Fuel Filter PrimaryFuel filter
DZ112918SECONDARY FUEL FILTERFuel filter
DZ115392Secondary Fuel FilterFuel filter
DZ122688SECONDARY FILTER ELEMENT (35E6)Fuel filter
DZ128543PRIMARY FUEL FILTERFuel filter
GM50006Fuel FilterFuel filter
GM50074Fuel Filter (primary)Fuel filter
P-205-003Fuel FilterFuel filter
RE509031Filter ElementFuel filter
RE5090362Fuel filterFuel filter
RE509208Filter Element (also order R113565)Fuel filter
RE520906PRIMARY FUEL FILTERFuel filter
RE522878Fuel filterFuel filter
RE541578CRANKSHAFT PULLEY AND DAMPER; OD = 190 mm (1343)Fuel filter
RE541922PRIMARY FUEL FILTERFuel filter
RE60021FINAL FUEL FILTERFuel filter
RE62419FUEL FILTERFuel filter
SE501934(16CB)Fuel injection nozzle
11-11013Gasket, Thermostat Cover MountingGasket
11-11023Gasket, Manifold to Expansion TankGasket
11-11043GasketGasket
11-21011GasketGasket
11-31031Gasket, Turbo Oil ReturnGasket
11-31615GasketGasket
11-31635Gasket, Turbo Exhaust (K27)Gasket
33702GASKET KITGasket
36476GASKET KITGasket
85401131ROCKER COVER GASKETGasket
DZ123559COMPLETE BLOCK ASSEMBLY INCLUDES CYLINDER HEAD WITH VALVES AND ROCKER ARM ASSEMBLY, COMPLETE GASKET KIT WITH FRONT AND REAR SEALSGasket
R116516Engine Cylinder Head GasketGasket
R123226Gasket, Water By-pass TubeGasket
R123345Gasket, Thermostat HousingGasket
R123354Gasket, Engine Oil PanGasket
R123417Gasket, Water PumpGasket
R123501GasketGasket
R123504Gasket, Remote Oil Filter AdapterGasket
R123525GasketGasket
R123543Gasket, Rocker Arm CoverGasket
R123570GasketGasket
R123572GasketGasket
R135896GasketGasket
R500374GasketGasket
R504882Gasket, Rocker Arm Cover MountingGasket
R53108Gasket, Starting MotorGasket
R90658Gasket, Exhaust ManifoldGasket
10000037182Clamp, hose - spring type CTB-27STHose
18-19501Hose 1-1/4" ID x 3-1/2" 3 Ply SiliconeHose
18-21016Hose, 2" I.D. x 1-3/4" 3 Ply SiliconeHose
18-31605Hose, 1-1/4 x 32" Wire ReinforcedHose
50332Hose, fuel .750 ID 35 PSI SAE 30R7Hose
60316Clamp, hose - SAE 032 (1.56-2.50)Hose
85401289RADIATOR TOP HOSEHose
85426005RADIATOR BOTTOM HOSEHose
GM62396Hose, ReducerHose
GM91647Hose, HumpHose
R128455Hose, Radiator InletHose
R128456Hose, Radiator OutletHose
25-11011Impeller with GasketImpeller
25-15704ImpellerImpeller
35104NOZZLE CLAMP ASSEMBLYInjector
85400893INJECTORInjector
RE48786Fuel Injector (with turbocharger, includes keys 2-3)Injector
RE519730Fuel InjectorInjector
RE60062Fuel Injector (without turbocharger, includes keys 2-3)Injector
Y5020DEF Dosing InjectorInjector
Y5021Fuel Injector HarnessInjector
223673Filter, oilOil filter
24-01002Oil FilterOil filter
352793Oil FilterOil filter
36881696ELEMENT, ENGINE OIL FILTEROil filter
950-1681Engine Oil FilterOil filter
C04521Element, Oil FilterOil filter
DZ118286OIL FILTEROil filter
GM32809FILTER, OILOil filter
GM64496Oil FilterOil filter
GM77161Oil FilterOil filter
GM86400Oil FilterOil filter
LF3703Lube, Spin-OnOil filter
P-175-002Oil FilterOil filter
RE504836OIL FILTEROil filter
RE539279ENGINE OIL FILTEROil filter
SE501813(REMAN FOR DZ100021) (5024)Oil pump
011068Status: Generator at Rest, Stop Mode, 22:31Service part / kit
011136DANGER Electrocution. Do not disable or modify the connection box door safety switch.Service part / kit
05-79650SoundshieldService part / kit
100REOZJ4Stationary non-emergency gen-setsService part / kit
12547Assembly, cam lock, qrtr turnService part / kit
12632Lug Door Safety Swtiches(2)Service part / kit
14203Block, terminal - 10 pos.Service part / kit
14204Kit, ground barService part / kit
17776THROTTLE SHAFT BUSHING REPLACEMENTService part / kit
18556Regulator, voltage - SE 350Service part / kit
18893Handle, lug doorService part / kit
18934Guard, potentiometerService part / kit
20-29601-1Element, Intake AftercoolerService part / kit
21-10000Zinc PlugService part / kit
21-10010Zinc AnodeService part / kit
22018Hinge, continuous - 10.25Service part / kit
22208Hinge, control panel - 28”Service part / kit
23025Light, interior control panelService part / kit
23093Governor linkage gap kitService part / kit
24-20015Crankcase Breather Filter, Left handService part / kit
24540Holder, manualService part / kit
25-19511Wear PlateService part / kit
25077Switch, toggle - 20A VACService part / kit
26229Kit, voltage adjustment pot w/wiresService part / kit
26431ESO MOUNTING AND GROUNDING KITService part / kit
26888PROTECTIVE SHIPPING CAPService part / kit
26891PROTECTIVE SHIPPING CAPService part / kit
27828Panel, lug box glasticService part / kit
28561WBox, lug enclosureService part / kit
28564WPanel, control leftService part / kit
28567Bus, main breaker outService part / kit
28569WPanel, lug box outletService part / kit
28570WDoor, lug boxService part / kit
28583WAngle, top lug boxService part / kit
28584Bus, lug extensionService part / kit
28653BWeldment, control boxService part / kit
28910SPRING, pressure adjustingService part / kit
29893Bracket, control board wire guideService part / kit
2x594Ampere ratingService part / kit
30175Decal, UN31A tank cautionService part / kit
30246WPanel, digital controlService part / kit
32966O.S. METERING VALVE AND ARM ASSEMBLYService part / kit
33002SEAT, springService part / kit
34195VALVE BODYService part / kit
34270COIL ASSEMBLYService part / kit
34488HOUSING AND ADVANCE PISTON KITService part / kit
36493HEAD AND ROTOR KITService part / kit
37055CSA SOLENOID KIT 12V NON-DELAYService part / kit
38411CONNECTOR, back-leakageService part / kit
51551Decal set, safetyService part / kit
51552Decal, high tempService part / kit
54-51006Drain Valve, MetalService part / kit
54005CAP, DEF FILLService part / kit
55104CAP, FUEL FILL 3.50 - GREENService part / kit
60020Nut, M8-1.25 sflg lockService part / kit
60062Screw, 10-32 x .750 pan phil, G2Service part / kit
60068Screw, 10-24X.500 pan philService part / kit
60145Nut, .375-16 ser flg lockService part / kit
60161Nut, .250-20 hx ser flgService part / kit
60168Screw, .312-18X.750 hx hdService part / kit
60175Screw, .250-20X.500 sflg hexService part / kit
60252Washer, #10 split lockService part / kit
60268Rivet, .188 dia. x .126 to .250 grip, SSService part / kit
60270Nut, 8-32 nylock, G6Service part / kit
60398Screw, 10-32 x .500 pan phil, SSService part / kit
60452Washer, .313 flat 1.125/1.0 bonded rubber, SSService part / kit
60473Rivet, 3/16Service part / kit
60478Screw, .375-16X2.000 hx hdService part / kit
60505Nut, .312-18 U-clip - long typeService part / kit
60507Screw, .312-18x1.0 std hex, SSService part / kit
60525Screw, 8-32X1.500 pan philService part / kit
6068HF120-183EngineService part / kit
60749Plug, hole .500 dia. whiteService part / kit
61045Nut, 10-32 sflgService part / kit
65309Connector, 21 pin, deutschService part / kit
65444Transformer, currentService part / kit
655KGround Contact AreaService part / kit
65890Lug, terminal dual #6-350mcmService part / kit
66191Controller, eng/gen - prog.Service part / kit
66455Relay, 12V/70A NC/80A NO w/diodeService part / kit
80REOZJ4Stationary non-emergency gen-setsService part / kit
85401081COOLANT HEATER RESISTANCE 1000W 240VService part / kit
85403616ELECTRONIC ACTUATORService part / kit
85403731STARTING BATTERY 12V 100Ah 450AService part / kit
85404267AIR HEATER RESISTANCE 1200W 12VService part / kit

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Common questions

What is the oil capacity of the John Deere PE6068HFG94?

The John Deere PE6068HFG94 engine has an oil capacity of 31.2 liters.

What is the displacement of the John Deere PE6068HFG94?

The John Deere PE6068HFG94 has a displacement of 6.8 liters with 6 cylinders.

Which generators use the John Deere PE6068HFG94 engine?

The John Deere PE6068HFG94 powers 3 generator set(s), including Generac MMG175, Magnum MMG175, Magnum MMG175 Super Start.

What is a common problem with the John Deere PE6068HFG94 engine?

A commonly reported issue on generators using the John Deere PE6068HFG94 is: High Coolant Temperature Shutdown. Cause: Low coolant level. Fix: Add coolant if needed. Allow engine to cool, then check coolant level in radiator. Restart engine and check coolant temperature (on controller). Stop engine immediately if coolant temperature is 210°F (99°C) or more..