John Deere 6329D Engine Engine

• When pressing test lamp button - one or more fault lamps do not light.
  Fix: Fault lamp/lamps burned out - replace.
• Overspeed lamp lights - no fault condition exists.
  Fix: Replace overspeed circuit board.
• Overcrank fault lamp lights and engine stops cranking after approximately 75 seconds.
  Fix: See engine service manual for troubleshooting fuel system. After correcting fault, reset monitor by moving run-stop/reset-remote switch to reset position, then to either run or remote to restart engine.
• Overcrank fault lamp lights after engine has run for approximately 75 seconds.
  Fix: Replace start-disconnect circuit board.
• Low oil pressure lamp lights after engine is running.
  Fix: Check: a. Oil level - engine will shut down after approximately 12-1/2 seconds if oil pressure is low.
• High engine temperature lamp lights as soon as engine starts.
  Fix: Check for defective sensor or actual high temperature condition.
• High engine temperature lamp lights after engine is running.
  Fix: Check for: a. Defective thermostat/thermostats. b. Low coolant level. c. Defective high engine temperature sensor.
• High engine temperature fault lamp lights - no fault condition exists.
  Fix: Be certain that no fault condition exists. Remove lead 31 from TB11 inside control box (refer to wiring diagram). If high engine temperature lamp still lights, remove and replace engine monitor plug-in printed circuit board.
• Fault lamp lights immediately after engine starts.
  Fix: Check for: a. overspeed condition as engine starts. b. high temperature condition. c. faulty high engine temperature sensor or overspeed switch. d. faulty starter disconnect.
• Fault lamp lights after engine is running.
  Fix: Check the following: a. Oil level-engine will shutdown after approximately 12-1/2 seconds if low oil pressure sensor does not open. b. Oil pressure sensor may be defective. c. High engine temperature - caused by low coolant level, faulty thermostat, etc. d. Faulty high engine temperature sensor. e. Faulty starter disconnect.
• Fault lamp lights - no fault condition exists.
  Fix: Be certain that no fault condition exists. Disconnect lead 29, 30 and 31 from TB11 inside control box (refer to wiring diagram). If fault lamp still lights with leads disconnected, remove and replace engine monitor plug-in printed circuit board.
• Low oil pressure fault lamp lights r no fault condition exists.
  Fix: Be certain that no fault condition exists. Disconnect lead 30 from TB11 inside control box (refer to wiring diagram). If low oil pressure lamp still lights, remove and replace engine monitor plug-in printed circuit board.
• Low oil pressure fault lamp lights - no fault condition exists.
  Fix: Be certain that no fault condition exists. Disconnect lead 30 from TB11 inside control box (refer to wiring diagram), if low oil pressure lamp still lights, remove and replace engine monitor plug-in printed circuit board.
• Fault lamp lights and, engine stops cranking after approximately 75 seconds.
  Fix: See engine service manual for troubleshooting fuel system, ignition system, etc. After correcting problem, reset the engine monitor by moving run-stop/reset-remote switch to reset position. Release and return to run position.
• Fault lamp lights and engine stops cranking after approximately 75 seconds.
  Fix: See engine service manual for troubleshooting fuel system. After correcting fault, reset monitor by moving run-stop/reset-remote switch to reset position, then to either run or remote to restart engine.

Compiled from service & troubleshooting documentation across every generator set that uses the John Deere 6329D.

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

Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.

• Air filter: John Deere AR39797 John Deere AR54337 Donaldson P130763 Donaldson P136401 Wix 42540 Ac Delco A525C Wix 42655 Ac Delco A617C
• Fuel filter: John Deere AR50041 John Deere DQ24057 John Deere R27091 John Deere AR86755 John Deere AT13387 Donaldson P551130 Donaldson P551846 Donaldson P556745
• Oil filter: John Deere AR58956 Donaldson P550020 Wix 51243 Ac Delco PF17

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

• John Deere 2840 — Tractor
• John Deere 4030 — Tractor
• John Deere 4400 — Combine
• John Deere 4420 — Combine
• John Deere 444 — Loader Wheeled
• John Deere 444C — Loader Wheeled
• John Deere 444CH — Loader Wheeled
• John Deere 444D — Loader Wheeled
• John Deere 484 — Cotton Picker
• John Deere 540A — Skidder
• John Deere 544A — Loader Wheeled
• John Deere 570A — Grader

Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.