Specifications
Ratings spec sheet not in our library yet — see the documents below.
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | — | 2000 hr | find | ||
| Oil filter | — | 1000 hr | find | ||
| Belt | — | find | |||
| Coolant filter | — | find | |||
| Oil | — | 250 hr |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.
Parts
12model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| E-11 | Fuel System | Fuel filter | PartsGeek | |
| E-19 | Air Intake System | Air filter | PartsGeek | |
| E-23 | Electrical System | Electrical | PartsGeek | |
| E-26 | Batteries (Specific Gravity) | Battery | PartsGeek | |
| 3379000 | Air For Your Engine | Service part / kit | PartsGeek | |
| 3379001 | Fuel for Cummins Engines | Service part / kit | PartsGeek | |
| 3379009 | Operation - Cold Weather | Service part / kit | PartsGeek | |
| 3666017 | B Series Shop Manual | Service part / kit | PartsGeek | |
| 3666087 | Troubleshooting and Repair Manual, B3.9 and B5.9 Series Engines | Service part / kit | PartsGeek | |
| 3666109 | Alternative Repair Manual, B and C Series Engines | Service part / kit | PartsGeek | |
| 3666132 | Coolant Requirements and Maintenance | Service part / kit | PartsGeek | |
| 3810340 | Cummins Engine Oil Recommendations | Service part / kit | PartsGeek |
Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.
Available documents
Engine spec — 4087025 (Cummins/Onan)Engine spec — cummins-b-series-off-highway-specs (Cummins/Onan)Owner's manual — 3381335 (Cummins/Onan)Service manual — 22660559 ESM Cummins 4B 3.9 (Cummins/Onan)Service manual — LeeBoy-Cummins-B3.9-B5.9-Engine-Manuals (Cummins/Onan)