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 | ||
| Fuel filter | Fleetguard fuel filters B5.9 C8.3 without water separator | FF5052 | 12000 hr | Amazon eBay $29.90 PartsGeek | |
| Oil filter | Fleetguard Filter | LF3349 | 6000 hr | Amazon eBay $15.44 PartsGeek | |
| 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.
Common questions
What oil filter does the Cummins/Onan B5.9 use?
The Cummins/Onan B5.9 uses oil filter part number LF3349.
What fuel filter does the Cummins/Onan B5.9 use?
The Cummins/Onan B5.9 uses fuel filter part number FF5052.
Parts
17model family| Part # | Description | Qty | System | |
|---|---|---|---|---|
| CC2602 | Fleetguard DCA4 test kit | 50 | Test kit | PartsGeek |
| 3165033 | INLINE™5 datalink adapter | 1 | Service part / kit | PartsGeek |
| 3165143 | Storage Case | 1 | Service part / kit | PartsGeek |
| 3165159 | Datalink cable (DB25F 9-Pin Deutsch connector) | 1 | Service part / kit | PartsGeek |
| 3165160 | Datalink cable (DB25F 6-Pin Deutsch connector) | 1 | Service part / kit | 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 | |
| 4918417 | INLINE™5 software compact disc | 1 | Service part / kit | PartsGeek |
| 4918418 | DB9F-DB9M serial cable | 1 | Service part / kit | PartsGeek |
| 4918419 | 1 | Service part / kit | PartsGeek | |
| 4918436 | INLINE™4 and 5 Ruggedized protective boot | 1 | 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 — 3606016 (Cummins/Onan)Engine spec — 3606058 (Cummins/Onan)Engine spec — 4087025 (Cummins/Onan)Engine spec — cummins-b-series-off-highway-specs (Cummins/Onan)Spec sheet — 6BTA5.9G5-G6 (Cummins/Onan)Reference — 3381326 0699Reference — 952-3 (Cummins/Onan)Reference — Apr2025 INCALDVD CoverLetterReference — Schedule Technical2012 (Cummins/Onan)Owner's manual — 3381335 (Cummins/Onan)Owner's manual — B59C83Service manual — 22660559 ESM Cummins 4B 3.9 (Cummins/Onan)Service manual — ServiceInstructions5 (Cummins/Onan)