Service parts for the C70
Grouped by system, with how many of each the parts manual calls for.
Air intake
1 requiredBelts
1 requiredPrices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.
Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 50.0 Hz |
| Standby power | 56 kW |
| Standby kVA | 70 |
| Prime power | 50 kW |
| Oil capacity | 10.9 L |
| Voltage options | 380 V, 440 V, 254/440 V, 240/416 V, 230/40 V, 220/380 V, 127/220 V, 115/200 V, 110/190 V |
| Phase | 3 |
| Battery voltage | 12 V |
| Coolant capacity | 21.2 L |
| Dimensions (L×W×H) | 1950×1084×1480 mm |
| Dry weight | 1063 kg |
| Fuel tank | 106.0 L |
Engine
| Oil capacity | 11.5 L |
|---|---|
| Coolant capacity | 16.9 L |
| Displacement | 3.9 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Maintenance & consumables
for the Cummins/Onan 4BT3.9-G4| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Normal duty air filter | 0140-3765 | Amazon eBay | ||
| Fuel filter | Oil and fuel filter fitted, water separator | — | 500 hr | ||
| Oil filter | Oil and fuel filter fitted, water separator | — | 500 hr | ||
| Battery | Battery capacity (1x) 75 A/h | — | |||
| Belt | 328876800 | eBay | |||
| Coolant | Coolant capacity (only engine) | 7.2 l | — | ||
| Oil | Lubrication system oil capacity | 11.5 l | — | 1000 hr | |
| Spark plug | — | 1000 hr |
Common questions
How many kW is the Cummins/Onan C70?
The Cummins/Onan C70 is rated 56 kW standby (70.0 kVA).
What engine does the Cummins/Onan C70 use?
The Cummins/Onan C70 is powered by the Cummins/Onan 4BT3.9-G4 engine.
What kind of fuel does the Cummins/Onan C70 run on?
The Cummins/Onan C70 runs on Diesel.
What is the oil capacity of the Cummins/Onan C70?
The Cummins/Onan 4BT3.9-G4 engine in the Cummins/Onan C70 has an oil capacity of 11.5 liters.
Which air filter part number does the Cummins/Onan C70 take?
The Cummins/Onan C70 uses air filter part number 0140-3765.
Parts
11| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0249-0814 | Relay 2P Base | 1 | Relay 2p base | Amazon eBay |
| 0307-3047 | Relay (24V) | Relay 24v | Amazon eBay | |
| 0332-3923-02 | Terminal Block | Terminal block | Amazon eBay | |
| 0332-3925-02 | Jumper-Terminal | Jumper terminal | Amazon eBay | |
| 0332-3926 | Terminal Block End Stop | Terminal block end stop | Amazon eBay | |
| 0332-3927-02 | Terminal Block End Plate | 1 | Terminal block end plate | Amazon eBay |
| 0332-3943-02 | Jumper-Terminal | Jumper terminal | Amazon eBay | |
| 0332-4036-02 | Terminal Block (Earth) | Terminal block | Amazon eBay | |
| 328876800 | Belt, V-Grooved | 1 | Belt | eBay |
| AN500T0013 | STARTER MOTOR | Starter | Amazon eBay | |
| AN500T0083 | ALTERNATOR | Alternator | 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.
Fuel consumption
| Rating | Load | L/h | gal/h |
|---|---|---|---|
| Prime | 100% | 15.0 | 3.94 |
| Standby | 70% | 16.0 | 4.23 |
Available documents
Reference — Cummins-C70-D5 4BT3.9 (Cummins/Onan)Service manual — 908-0109 Cummins Set Mounted Battery Chargers (11-2009) (Cummins/Onan)