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 | 10.9 L |
|---|---|
| Coolant capacity | 16.9 L |
| Displacement | 3.9 L |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
Filters for the Cummins/Onan 4BT3.9-G4
7Engine-mounted filters the filter manufacturers list for this engine family. These come from the engine, not from this generator set’s own parts list, so confirm against your serial number before ordering.
| System | Filter | Description | Cross-references | |
|---|---|---|---|---|
| Oil filter | P558616 | Lube Filter, Spin-On Full Flow | CUMMINS 3290712, CUMMINS 3890709, NAPA 1602, BALDWIN BT427 | KuduParts $11.00 FridayParts $13.20 |
| Oil filter | P550939 | Lube Filter, Spin-On Full Flow | CUMMINS 148459, CUMMINS 162097, NAPA 1521, NAPA 21521 | FridayParts $23.20 |
| Fuel filter | P550440 | Fuel Filter, Spin-On Secondary | CUMMINS 3831063, CUMMINS 3890707, NAPA 3358, BALDWIN BF788 | FridayParts $356.80 |
| Fuel filter | P553004 | Fuel Filter, Spin-On | CUMMINS 3903640, CUMMINS 53C0045, NAPA 3358, RENAULT VI 0000150564 | FridayParts $18.20 |
| Fuel / water separator | P551329 | Fuel Filter, Water Separator Spin-On Twist&Drain | CUMMINS 11E170210, CUMMINS 3890063, NAPA 3357, BALDWIN BF1280 | FridayParts $151.00 |
| Fuel / water separator | P550248 | Fuel Filter, Water Separator Spin-On Twist&Drain | CUMMINS 1492827, CUMMINS 3286503, NAPA 3472, BALDWIN BF1226 | FridayParts $229.00 |
| Coolant filter | P554071 | Coolant Filter, Spin-On | CUMMINS 209604, CUMMINS 209606, NAPA 4071, WALGAHN-MOTORENTECHN 00811412 | FridayParts $397.60 |
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 10.9 liters.
What is the cooling system capacity of the Cummins/Onan C70?
The Cummins/Onan C70 cooling system holds 21.2 liters (5.6 US gallons) for the radiator system including the engine, per the manufacturer specification sheet.
What is the continuous rating of the Cummins/Onan C70?
The Cummins/Onan C70 is rated 50 kW prime (63 kVA), against 56 kW standby.
How much does the Cummins/Onan C70 weigh?
The Cummins/Onan C70 has a dry weight of 1063 kg (2343 lb).
How big is the fuel tank on the Cummins/Onan C70?
The Cummins/Onan C70 has a 106 liter (28 US gallon) fuel tank.
What voltages is the Cummins/Onan C70 available in?
The Cummins/Onan C70 is offered in 380 V, 440 V, 254/440 V, 240/416 V, 230/40 V, 220/380 V, 3-phase.
Which air filter part number does the Cummins/Onan C70 take?
The Cummins/Onan C70 uses air filter part number 0140-3765.
Parts
13| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 0307-3047 | Relay (24V) | Relay 24v | Amazon eBay | |
| 0332-3923-02 | Terminal Block | 3 | Terminal block | Amazon eBay |
| 0332-3925-02 | Jumper-Terminal | Jumper terminal | 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 | |
| REC149-2106 | By-pass filter I | 1 | Oil filter | Amazon eBay $18.20 |
| REC1491754 | By-pass filter II | 1 | Oil filter | Amazon eBay |
| 0249-0814 | Relay 2P Base | 1 | Service part / kit | Amazon eBay |
| 0332-3926 | Terminal Block (End Stop) | 2 | Service part / kit | Amazon eBay |
| 0332-3927-02 | Terminal Block (End Plate) | 1 | Service part / kit | 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
This page was generated from the 2 manufacturer documents above by automated extraction; every figure shown is copied from one of them. How the data is compiled.