Service parts for the 4.0 BF-3CR
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredFuel system
1 requiredOil system
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Gasoline |
|---|---|
| Prime power | 8 kW |
| Alternator | Four-pole, revolving armature |
| Voltage options | 120 V |
| Phase | Single |
| Rated current | 33.3 A |
| Battery voltage | 12 V |
| Dry weight | 98 kg |
Maintenance & consumables
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | AIR FILTER | 10-4568 | Amazon eBay | ||
| Fuel filter | FUEL FILTER | 10-3457 | Amazon eBay | ||
| Oil filter | OIL FILTER | 10-5679 | Amazon eBay | ||
| Battery | terminal cleaning, cable connections, electrolyte level maintenance, charging current control | — | |||
| Belt | BELT | 10-6780 | Amazon eBay | ||
| Coolant | — | ||||
| Oil | — | ||||
| Spark plug | — |
Common questions
What fuel does the Cummins/Onan 4.0 BF-3CR use?
The Cummins/Onan 4.0 BF-3CR runs on Gasoline.
What alternator does the Cummins/Onan 4.0 BF-3CR use?
The Cummins/Onan 4.0 BF-3CR uses a Four-pole, revolving armature alternator.
What oil filter fits the Cummins/Onan 4.0 BF-3CR?
The Cummins/Onan 4.0 BF-3CR uses oil filter part number 10-5679.
What fuel filter fits the Cummins/Onan 4.0 BF-3CR?
The Cummins/Onan 4.0 BF-3CR uses fuel filter part number 10-3457.
What air filter fits the Cummins/Onan 4.0 BF-3CR?
The Cummins/Onan 4.0 BF-3CR uses air filter part number 10-4568.
Parts
7| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 10-3457 | FUEL FILTER | 1 | Fuel filter | Amazon eBay |
| 10-4568 | AIR FILTER | 2 | Air filter | Amazon eBay |
| 10-5679 | OIL FILTER | 1 | Oil filter | Amazon eBay |
| 10-6780 | BELT | 1 | Belt | Amazon eBay |
| 10-2456 | FUEL SOLENOID | 1 | Service part / kit | Amazon Amazon eBay eBay |
| 16004 | Spec. 16004 | 1 | Service part / kit | Amazon eBay |
| 300-0986 | * - Included in 300-0986 Control Assembly | 1 | Service part / kit | Amazon eBay $150.00 |
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.