Specifications
| Fuel | Diesel |
|---|---|
| Standby power | 180 kW |
| Prime power | 130 kW |
| Oil capacity | 14.0 L |
| Alternator | UR (4-pole) |
| Voltage options | 60 V, 50 V |
| Phase | 3-phase |
| Power factor | 0.8 |
| Battery group | 2 x 12V, 225 Ah [10 kC] |
| Battery voltage | 24 V |
| Battery quantity | 2 |
| Dimensions (L×W×H) | 1760×1120×2930 mm |
| Dry weight | 2495 kg |
| Fuel tank | 10.5 L |
Engine
| Oil capacity | 14.0 L |
|---|---|
| Coolant capacity | 53.0 L |
| Displacement | 14.0 L |
| Aspiration | Solenoid Shift Isochronous |
| Rated speed | 1800 rpm |
Filters for the Cummins/Onan NT855-G
8Engine-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 | P551670 | Lube Filter, Spin-On Full Flow | CUMMINS 298670, CUMMINS 299670, NAPA 1970, CARBOCOL 0026 | FridayParts $26.68 |
| Oil filter | P550777 | Lube Filter, Spin-On Bypass | CUMMINS 3021658, CUMMINS 33004232, NAPA 1749, BALDWIN B7577 | FridayParts $43.56 |
| Fuel filter | P550105 | Fuel Filter, Spin-On Primary | CUMMINS 154700, CUMMINS 154710, NAPA 3109, NAPA 3405 | buy |
| Fuel filter | P557440 | Fuel Filter, Spin-On Secondary | CUMMINS BM78672, BALDWIN BF970, LPM 00013505994, WALGAHN-MOTORENTECHN 00811464 | FridayParts $189.69 |
| Fuel / water separator | P550106 | Fuel Filter, Water Separator Spin-On | CUMMINS 154789, CUMMINS 156164, NAPA 3405, BALDWIN BF957-D | FridayParts $285.60 |
| Fuel / water separator | P558000 | Fuel Filter, Water Separator Spin-On Twist&Drain | CUMMINS 3308638, CUMMINS 3308683, NAPA 3405, NAPA 3693 | KuduParts $24.00 FridayParts $25.66 |
| Coolant filter | P554071 | Coolant Filter, Spin-On | CUMMINS 209604, CUMMINS 209606, NAPA 4071, WALGAHN-MOTORENTECHN 00811412 | FridayParts $397.60 |
| Coolant filter | P554073 | Coolant Filter, Spin-On | CUMMINS 209605, CUMMINS 209607, NAPA 4073, VERSATILE 00104040 | KuduParts $40.00 |
Maintenance & consumables
for the Cummins/Onan NT855-G| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Air Filter | — | 500 hr | ||
| Fuel filter | Fuel Filters (Cummins engine) | — | 3000 hr | ||
| Oil filter | Oil Filter with Crankcase | — | 1000 hr | ||
| Battery | Battery | — | 1000 hr | ||
| Belt | Fan Belt and Radiator Fan | — | 500 hr | ||
| Coolant | Engine Coolant with Radiator | 53.0 L | — | 1000 hr | |
| Coolant filter | A shut off valve (see Figure 30) is installed in the inlet and outlet line to the coolant filter to be closed, for minimum coolant loss when the filter is removed. Refer to engine manufacturer's manual for coolant filter replacement information. | — | |||
| Oil | Engine Oil | 40.0 Gallons | — | 500 hr | |
| Spark plug | Spark Plug | — | 500 hr |
Common questions
How many kW is the Cummins/Onan DFE 15R?
The Cummins/Onan DFE 15R is rated 180 kW standby.
Which engine powers the Cummins/Onan DFE 15R?
The Cummins/Onan DFE 15R is powered by the Cummins/Onan NT855-G engine.
Is the Cummins/Onan DFE 15R diesel or gas?
The Cummins/Onan DFE 15R runs on Diesel.
What's the oil capacity on a Cummins/Onan DFE 15R?
The Cummins/Onan NT855-G engine in the Cummins/Onan DFE 15R has an oil capacity of 14.0 liters.
What is the cooling system capacity of the Cummins/Onan DFE 15R?
The Cummins/Onan DFE 15R cooling system holds 53 liters (14.0 US gallons) for the engine, per the manufacturer specification sheet.
What is the prime power rating of the Cummins/Onan DFE 15R?
The Cummins/Onan DFE 15R is rated 130 kW prime (162 kVA), against 180 kW standby.
How much does the Cummins/Onan DFE 15R weigh?
The Cummins/Onan DFE 15R has a dry weight of 2495 kg (5500 lb).
How big is the fuel tank on the Cummins/Onan DFE 15R?
The Cummins/Onan DFE 15R has a 10.5 liter (3 US gallon) fuel tank.
What voltage does the Cummins/Onan DFE 15R produce?
The Cummins/Onan DFE 15R is offered in 60 V, 50 V, 3-phase-phase.
What size battery does the Cummins/Onan DFE 15R need?
The Cummins/Onan DFE 15R uses 2 batteryies, 24 V each, group 2 x 12V, 225 Ah [10 kC], per the manufacturer specification sheet.
What alternator does the Cummins/Onan DFE 15R use?
The Cummins/Onan DFE 15R uses a UR alternator. It has 4 poles.
Troubleshooting
6Symptoms & remedies
| Symptom | Cause | Remedy |
|---|---|---|
| Engine stops cranking and fault lamp lights, after cranking approximately 75 seconds | See engine service manual for troubleshooting fuel system; after correcting problem, reset engine monitor relay by placing Run-Stop/Reset-Remote switch to Stop/Reset, then back to the required running position | |
| Fault lamp lights immediately after engine starts | Overspeed condition as engine starts | Check for overspeed condition as engine starts |
| Fault lamp lights and engine shuts down after running for a period | Oil level (engine will shut down if sensor is closed) | Check oil level |
| Fault lamp lights and engine shuts down after running for a period | Oil system problem | Check engine manual for troubleshooting oil system |
| Fault lamp lights and engine shuts down after running for a period | High engine temperature | Check coolant level; check water flow (city water cooled systems); check radiator for free air flow, and fan belts for tightness; see engine manual for troubleshooting cooling system |
| Fault lamp lights and engine shuts down after running for a period | Faulty oil pressure sensor or faulty high engine temperature sensor | Check for faulty oil pressure sensor or faulty high engine temperature sensor |
Fault codes and symptom→remedy steps extracted from this model’s service/owner documentation; verify against the official manual before servicing. Full Cummins/Onan DFE 15R troubleshooting guide (21 entries) →
Parts
3| Part # | Description | Qty | System | |
|---|---|---|---|---|
| TB11-29 | Engine Monitor Board | 1 | Service part / kit | Amazon eBay |
| TB11-30 | Engine Monitor Board | 1 | Service part / kit | Amazon eBay |
| TB11-31 | Engine Monitor Board | 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 | 0.83 | 0.22 | |
| Standby | 0.95 | 0.26 |
Available documents
This page was generated from the 1 manufacturer document above by automated extraction; every figure shown is copied from one of them. How the data is compiled.