Service parts for the EF series
Grouped by system, with how many of each the parts manual calls for.
Belts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Gasoline |
|---|---|
| Oil capacity | 5.0 L |
| Battery voltage | 12.0 V |
Maintenance & consumables
for the Ford VB| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | 7200 hr | |||
| Fuel filter | — | 150 hr | |||
| Oil filter | — | 150 hr | |||
| Belt | Belt | 321098765 | Amazon eBay | ||
| Coolant filter | — | 150 hr | |||
| Oil | 5.0 quarts | — | 2800 hr | ||
| Spark plug | — | 150 hr |
Common questions
What engine does the Cummins/Onan EF series use?
The Cummins/Onan EF series is powered by the Ford VB engine.
What fuel does the Cummins/Onan EF series use?
The Cummins/Onan EF series runs on Gasoline.
Troubleshooting
6Symptoms & remedies
| Symptom | Remedy |
|---|---|
| Engine lacks power. | Tighten cylinder head and spark plugs. If still not corrected; grift the valve clearance. Replace pistons rings, if necessary. |
| Excessive choking. | See that choke opens properly. |
| Carbon or lead in cylinder. | Remove carbon. |
| Restricted air cleaner. | Clean or increase the size. |
| Engine misfires at light load. | Carburetor needs adjustment. Adjust, clean if needed. Sparkplug gaps too narrow. Adjust to correct gap. Intake air leak. Tighten or replace gaskets. Faulty ignition. Clean, adjust, or replace breaker points, plugs; condenser, coil, etc., or retime ignition. |
| Uneven compression. | Tighten cylinder head and spark plugs. If still not corrected, grind valves. Replace piston rings, if necessary. Worn intake valve stems or guides. Replace valves or guides. |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan EF series troubleshooting guide (38 entries) →
Parts
23| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 321098765 | Belt | 1 | Belt | Amazon eBay |
| 432109876 | Spark Plug | 1 | Spark plug | Amazon eBay |
| 59F4L073AWG | E/F Series & International T444 | 1 | Service part / kit | Amazon eBay |
| 59F4M215E | Van (E350), 50 State | 1 | Service part / kit | Amazon eBay |
| 59F4M215F | Truck (F250-F550), 50 State | 1 | Service part / kit | Amazon eBay |
| 59F6L073AWG | Ford 1995.5-98.5, IH 1995.5-97.5, E/F Series & International T444 (up to 1997.5) | 1 | Service part / kit | Amazon eBay |
| 59F6M215EC | Van (E350), 50 State | 1 | Service part / kit | Amazon eBay |
| 59F6M215EF | Van (E350), 49 State | 1 | Service part / kit | Amazon eBay |
| 59F6M225FC | Truck (F250-F550), California | 1 | Service part / kit | Amazon eBay |
| 59F6M225FF | Truck (F250-F550), 49 State | 1 | Service part / kit | Amazon eBay |
| 59F8L073AWG | E/F Series Only, 1998.5 & up | 1 | Service part / kit | Amazon eBay |
| 59F8L073B | Ford 2000 up, IH 1997.5 up, F650/750, International T444 | 1 | Service part / kit | Amazon eBay |
| 59F8M215E | Van (E350), 50 State | 1 | Service part / kit | Amazon eBay |
| 59F8M235F | Truck (F250-F550), 50 State | 1 | Service part / kit | Amazon eBay |
| 59F9M225E | Van (E350), 50 State | 1 | Service part / kit | Amazon eBay |
| 59F9M235F | Truck (F250-F550), 50 State | 1 | Service part / kit | Amazon eBay |
| 59G6L060E | E-Series, All Transmission, 2004-2007 | 1 | Service part / kit | Amazon eBay |
| 59G6L060F | F-Series, Automatic Transmission, 2004-2007 | 1 | Service part / kit | Amazon eBay |
| 59G6L060FM | F-Series, Manual Transmission, 2004-2007 | 1 | Service part / kit | Amazon eBay |
| 59G6M060E | E-Series, All Transmission, with 2004-2007 | 1 | Service part / kit | Amazon eBay |
| 59G6M060I | International, All Types, with 2004-2007 | 1 | Service part / kit | Amazon eBay |
| 59G6M065F | F-Series, Auto Transmission, with 2004-2007 | 1 | Service part / kit | Amazon eBay |
| 59G6M065FM | F-Series, Manual Transmission, with 2004-2007 | 1 | Service 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.
Available documents
Service manual — 963-0002 Onan EF Instruction Manual (3-1961) (Cummins/Onan)