The John Deere 6466T is a 6-cylinder engine rated at 1800 rpm, producing up to 148 kW. It powers generator sets from John Deere.
Also known as: John Deere 6466T
Part of the John Deere 6466 engine family — 2 variants share parts & fitment.
| Cylinders | 6 |
|---|---|
| Rated speed | 1800 rpm |
| Gross power | 148 kW |
| Symptom | Cause | Remedy |
|---|---|---|
| Engine Hard to Start or Will Not Start | Improper Starting Procedure | |
| Engine Hard to Start or Will Not Start | No fuel | |
| Engine Hard to Start or Will Not Start | Low battery output | Check electrolyte level and specific gravity of each battery. Page 22 and 23. |
| Engine Hard to Start or Will Not Start | Excessive resistance in starting circuit | Clean and tighten all connections on batteries and starter. Page 22. |
| Engine Hard to Start or Will Not Start | Fuel shut-off not operating (6466D) | Turn on key switch. Check for audible click at injection pump. If not corrected see your dealer. |
| Engine Hard to Start or Will Not Start | Crankcase oil too heavy | Use oil of proper viscosity. Page 10. |
| Engine Hard to Start or Will Not Start | Improper type of fuel | Consult fuel supplier and use proper type of fuel for operating conditions. Page 9. |
| Engine Hard to Start or Will Not Start | Water, dirt, or air in fuel system | Drain, flush, fill and bleed system. Page 19. |
| Engine Hard to Start or Will Not Start | Clogged fuel filter | Replace filter element. Page 18. |
| Engine Hard to Start or Will Not Start | Dirty or faulty fuel injection nozzles | Have your John Deere dealer check the fuel injection nozzles. |
| Engine Hard to Start or Will Not Start | Clogged air cleaner | Clean air cleaner. Page 13. |
| Engine Runs Irregularly or Stalls Frequently | Low coolant temperature | Remove and check thermostat. |
| Engine Runs Irregularly or Stalls Frequently | Clogged fuel filter | Replace filter element. Page 18. |
| Engine Runs Irregularly or Stalls Frequently | Water, dirt, or air in fuel system | Drain, flush, fill and bleed system. Page 19. |
| Engine Runs Irregularly or Stalls Frequently | Dirty or faulty fuel injection nozzles | Have your John Deere dealer check the fuel injection nozzles. |
Fault codes and symptom→remedy steps extracted from this engine’s service/owner documentation; verify against the official manual before servicing.
Compiled from service & troubleshooting documentation across every generator set that uses the John Deere 6466T.
| Part # | Description | Category |
|---|---|---|
| 11508 | Loader operating information | Service part / kit |
| TW72 | Loader operating information | Service part / kit |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
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.
The John Deere 6466T powers 1 generator set(s), including John Deere 6466T.
A commonly reported issue on generators using the John Deere 6466T is: Engine Hard to Start or Will Not Start. Cause: Improper Starting Procedure.