Specifications
| Standby power | 102 kW |
|---|---|
| Prime power | 93 kW |
| Oil capacity | 16.4 L |
| Coolant capacity | 19.75 L |
| Max ambient | 54 °C |
| Dimensions (L×W×H) | 1525×817×1267 mm |
| Dry weight | 423 kg |
Engine
| Oil capacity | 16.4 L |
|---|---|
| Coolant capacity | 19.75 L |
| Displacement | 5.9 L |
| Aspiration | turbocharged |
| Rated speed | 1500 rpm |
Filters & service parts
model family| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Fuel filter | 3903640 | Amazon eBay $10.33 PartsGeek | |||
| Oil filter | — | find | |||
| Oil | — |
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 is the power rating of the Cummins/Onan 6BTA5.9?
The Cummins/Onan 6BTA5.9 is rated 102 kW standby.
What engine does the Cummins/Onan 6BTA5.9 use?
The Cummins/Onan 6BTA5.9 is powered by the Cummins/Onan 6BTA5.9-G5 engine.
What is the oil capacity of the Cummins/Onan 6BTA5.9?
The Cummins/Onan 6BTA5.9-G5 engine in the Cummins/Onan 6BTA5.9 has an oil capacity of 16.4 liters.
What fuel filter does the Cummins/Onan 6BTA5.9 use?
The Cummins/Onan 6BTA5.9 uses fuel filter part number 3903640.
Parts
4| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 3822509 | injector puller | 1 | Injector | PartsGeek |
| 3823276 | injector bore brush | 1 | Injector | PartsGeek |
| 3824469 | fuel pump gear puller | 1 | Fuel pump | PartsGeek |
| 3377259 | bosch timing tool (ve) | 1 | Service part / kit | PartsGeek |
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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Base | 100% | 21.0 | 5.6 |
| Base (cop) | 25% | 7.0 | 1.9 |
| Prime | 100% | 25.0 | 6.6 |
| Prime (prp) | 50% | 12.0 | 3.3 |
| Standby | 100% | 27.0 | 7.2 |
| Standby (esp) | 75% | 18.0 | 4.8 |
Available documents
Engine spec — fr90210 (Cummins/Onan)Spec sheet — 0057292 (Cummins/Onan)Spec sheet — 0070815 (Cummins/Onan)Spec sheet — 0070816 (Cummins/Onan)Spec sheet — 6BTA59-G3 (Cummins/Onan)Spec sheet — 6BTA59-G6 (Cummins/Onan)Spec sheet — 6bta59g6 (Cummins/Onan)Service manual — CONTENTS-Cummins-B-Series-Troubleshooting-Repair-3666087-588pages (Cummins/Onan)