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John Deere PE609HFG95 Engine

The John Deere PE609HFG95 is a 9 L 6-cylinder engine rated at 1800 rpm, producing up to 328 kW. It powers generator sets from Generac and Magnum, including the MMG330DI4, MMG330 and MMG330 Super Start. It holds 70.9 L (18.7 gal) of coolant.

Also known as: John Deere PE609HFG95

9.0 L
Displacement
6
Cylinders
1800 rpm
Rated speed
328 kW
Gross power

Engine specifications

Coolant capacity70.9 L
Displacement9.0 L
Cylinders6
Rated speed1800 rpm
Gross power328 kW

Common problems

15
  • WrnMaintenance — The period for servicing is set by the WrnMaintenance setpoint; the protection comes active if the running hours of the engine reach this value
    Cause: Running hours of the engine reach the WrnMaintenance setpoint
    Fix: Reset the "ServiceTime" reminder to the 250 hour interval
  • Wrn RA15 fail — Warning alarm in case of lost connection to IGL=RA15 module
    Cause: Lost connection to IGL=RA15 module
  • Very high soot load warning SPN:3719.16
  • Very high soot load - needs service SPN:3719.00
  • TimingSensor SPN:637
  • PositionSensor SPN:636
  • Overspeed or underspeed shut down
    Cause: Engine speed above or below 60.0 Hz
    Fix: Disconnect all loads and restart the generator, read the frequency (Hz) on the LCD display (with no loads the frequency should read 60.0 Hz); if the frequency is above or below 60.0 Hz, adjust the engine speed per the engine manual for throttle adjustments on mechanical governed units and the electronic governor manual for electronically controlled units
  • Overcrank shut down
    Cause: Low fuel level in the tank; fuel pump not operating properly; air filter blockage; engine will not start
    Fix: Check the fuel level in the tank; check for proper operation of the fuel pump; check air filter for blockage; if the engine will not start, consult the engine operation and maintenance manual for additional information on troubleshooting starting problems
  • Low oil pressure shutdown
    Cause: Low engine oil level; oil leaks; loss of oil pressure; oil pressure sender fault
    Fix: Check the level of the engine oil with the dipstick and add oil if required; visually inspect the engine for oil leaks; restart the unit and verify the loss of oil pressure, shutting the engine down immediately if the oil pressure value does not read 5 psi (34kPa) within 5 seconds; check the oil pressure sender and refer to the troubleshooting section of the engine operation and maintenance manual
  • Low fuel level shut down
    Cause: Fuel level low; leaks in the fuel tank; fuel level sender and connecting wiring damaged
    Fix: Check the fuel level on the LCD window and confirm the generator is sitting level; check for leaks in the fuel tank; check the fuel level sender and the connecting wiring for damage and check for continuity between the sender and the engine controller
  • Low coolant level shut down
    Cause: Low coolant level; visible leaks in coolant hoses, engine block or water pump; coolant mixed with engine oil
    Fix: Allow the engine to cool; check the coolant level in the radiator and add coolant until it is 3/4 in (2 cm) below the filler neck; inspect coolant hoses, engine block and water pump for visible leaks; check the engine oil to verify no coolant has mixed with it and consult the engine operation and maintenance manual
  • Intake Temp SPN:105
  • InjectorCyl#6 SPN:656
  • InjectorCyl#5 SPN:655
  • InjectorCyl#4 SPN:654

Compiled from service & troubleshooting documentation across every generator set that uses the John Deere PE609HFG95.

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterreplace at dust valve restriction indicator gauge vacuum of 25 in. H2O, or at least every 500 hours—500 hr
Fuel filter—
Oil filter—
Battery—
Belt—500 hr
Coolant75.0—
Coolant filter—
Oil—500 hr
Spark plug—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Service intervals

7
ItemActionHoursMonthsNotes
Engine maintenance/service reminder (MDC "WrnMaintenance")Other250 hrMagnum Digital Controller default service reminder interval; reset to 250 hours after servicing
Engine oil and oil filterChange500 hrFirst service — Subsequent changes every 500 hours when using John Deere Plus-50 II oil or equivalent; every 250 hours otherwise
Fan/serpentine beltInspect500 hr12 moRemove and check for wear; inspect pulleys and bearings while removed
Primary air cleaner elementReplace500 hrOr when dust valve restriction indicator gauge shows a vacuum of 25 in. H2O, whichever comes first
Exhaust filter (DPF) ash removalOther3000 hrExpected service interval at least 3000 or 4500 hours based on engine power and operating conditions; actual service when indicator light appears
Trailer wheel bearing lubricationLubricate12 moMinimum recommended lubrication is every 12 months or 12,000 miles (19,312 km)
Trailer wheel lug nutsAdjustFirst service — Re-torque lug nuts in sequence after the first road use

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

11
TypeItemValueUnitCondition
OtherAir Filter Restriction Indicator (filter minder gauge)20in. H2Oreplace air filter when yellow center bar reaches red section
OtherLow Fuel Level Shutdown5% of tank remaining
PressureLow Oil Pressure Shutdown20psi (138 kPa)engine controller shuts down engine below this pressure
PressureOil Pressure Restart Check5psi (34 kPa)shut engine down immediately if pressure does not reach this value within 5 seconds of restart
SpeedNo-Load Frequency60.0Hzno loads on the generator
TemperatureHigh Coolant Temperature Shutdown230°F (110°C) or more
TorqueGenerator drive plate bolts33ft-lb (45 Nm)
TorqueTrailer wheel lug nuts, first pass20-25ft-lbs (27-33 Nm)first pass
TorqueTrailer wheel lug nuts, second pass50-60ft-lbs (67-81 Nm)second pass
TorqueTrailer wheel lug nuts, third pass90-120ft-lbs (122-162 Nm)third pass
VoltageVoltage Regulation+/- 1%

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
Fuelultra low sulfur diesel459.0 gal (1738 L)Usable fuel volume 423 gal (1601 L)

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

Fault codes

7
CodeNameMeaningSeverityAction
Coolant temperature shutdownCoolant temperature shutdown - 230°FShutdown
Coolant temperature warningCoolant temperature warning - 220°FWarning
Fuel level shutdownFuel level shutdown - 5%Shutdown
Fuel level warningFuel level warning - 15%Warning
Oil pressure shutdownOil pressure shutdown - 20 psiShutdown
Oil pressure warningOil pressure warning - 25 psiWarning
OverspeedOverspeed protection - 115%Shutdown

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

Procedures

3
Checking Generator Drive Plate Torque maintenance
  1. Disconnect the engine starting battery
  2. Remove the generator fan guard
  3. Torque each of the drive plate bolts to the specification (MMG330: 33 ft-lb / 45 Nm)
  4. Reinstall the generator fan guard and reconnect the battery
Resetting of the Time to Service Reminder maintenance
  1. With the unit shut down, power up the controller with the Control On/Off toggle switch
  2. Press Page Select until Engine Protect line is reached and press Enter
  3. "WrnMaintanance" appears with the current service time hour setting below it
  4. Press Enter; current run time in hours appears on the display
  5. Reset the current run time hour setting to 250
  6. Press Enter to save the run time hour setting
  7. Move the Control On/I toggle switch to Control Off/O
Towing the Trailer / Wheel Lug Torque Sequence maintenance
  1. Start all lug nuts by hand
  2. First pass: tighten to 20-25 ft-lbs (27-33 Nm)
  3. Second pass: tighten to 50-60 ft-lbs (67-81 Nm)
  4. Third pass: tighten to 90-120 ft-lbs (122-162 Nm)
  5. After the first road use, re-torque the lug nuts in sequence

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

Common questions

What is the displacement of the John Deere PE609HFG95?

The John Deere PE609HFG95 has a displacement of 9.0 liters with 6 cylinders.

Which generators use the John Deere PE609HFG95 engine?

The John Deere PE609HFG95 powers 3 generator set(s), including Generac MMG330DI4, Magnum MMG330, Magnum MMG330 Super Start.

How often should you change the oil in the John Deere PE609HFG95?

The John Deere PE609HFG95 oil change interval is every 500 hours.

What is a common problem with the John Deere PE609HFG95 engine?

A commonly reported issue on generators using the John Deere PE609HFG95 is: WrnMaintenance — The period for servicing is set by the WrnMaintenance setpoint; the protection comes active if the running hours of the engine reach this value. Cause: Running hours of the engine reach the WrnMaintenance setpoint. Fix: Reset the "ServiceTime" reminder to the 250 hour interval.