Specifications
| Fuel | Diesel |
|---|---|
| Frequency | 50.0 Hz |
| Standby power | 2 kW |
| Voltage options | 120 V |
| Phase | Single |
Maintenance & consumables
for the Cummins/Onan DJA| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | — | find | |||
| Fuel filter | — | 300 hr | find | ||
| Oil filter | — | 50 hr | find | ||
| Belt | — | 50 hr | find | ||
| Coolant | — | 600 hr | |||
| Oil | — |
Common questions
What is the power rating of the Cummins/Onan 2.5DJA-51R?
The Cummins/Onan 2.5DJA-51R is rated 2 kW standby.
What engine does the Cummins/Onan 2.5DJA-51R use?
The Cummins/Onan 2.5DJA-51R is powered by the Cummins/Onan DJA engine.
What fuel does the Cummins/Onan 2.5DJA-51R use?
The Cummins/Onan 2.5DJA-51R runs on Diesel.
Parts
51| Part # | Description | Qty | System | |
|---|---|---|---|---|
| 101-0386 | Gasket and Shim Kit, Rear Bearing Plate - Includes Bearing Plate Mounting Washers | 1 | Gasket | PartsGeek |
| 120-0572 | Tube, Crankcase Oil | 1 | Hose | PartsGeek |
| 123-0315 | Filter, Breather - Spec A and B | 1 | Air filter | PartsGeek |
| 123-0667 | Gasket, Oil Fill Tube - Spec A | 1 | Gasket | PartsGeek |
| 123-0716 | Cap and Valve Assembly, Breather | 1 | Gasket | PartsGeek |
| 123-0724 | Tube, Oil Fill - Spec A through R | 1 | Hose | PartsGeek |
| 1777777/77 | ASBESTOS GASKET | Gasket | PartsGeek | |
| 333-0106 | Plug, Glow - Key 1-12 Volt | 1 | Glow plug | PartsGeek |
| 333-0107 | Plug, Glow - Key 3-24 Volt | 1 | Glow plug | PartsGeek |
| 333-0112 | Plug, Glow - Key 2, 4-32 Volt | 1 | Glow plug | PartsGeek |
| 509-0086 | Seal, Crankshaft Rear | 1 | Seal | PartsGeek |
| 509-0090 | Seal, Oil - Intake Valve - Early Style | 1 | Seal | PartsGeek |
| 509-0132 | Seal, Oil - Intake Valve - Late Style | 1 | Seal | PartsGeek |
| A936 | SHIFTING SOLENOID | Shifting solenoid | PartsGeek | |
| 101-0337 | Plate, Bearing (Less Bearing & Pins) | 1 | Service part / kit | PartsGeek |
| 101-0359 | Bearing, Precision | 2 | Service part / kit | PartsGeek |
| 101-0363 | Bearing, Precision Cam - Front | 1 | Service part / kit | PartsGeek |
| 101-0365 | Bearing, Precision Cam - Rear | 1 | Service part / kit | PartsGeek |
| 102-0488 | Base, Oil - Sets Without Oil Base Heater | 1 | Service part / kit | PartsGeek |
| 104-0170 | Screw, Cap - Hex Head (Special) | 4 | Service part / kit | PartsGeek |
| 104-0416 | Flywheel | 1 | Service part / kit | PartsGeek |
| 104-0418 | Gear | 1 | Service part / kit | PartsGeek |
| 104-0420 | Washer, Crankshaft Thrust | 2 | Service part / kit | PartsGeek |
| 104-1288 | Crankshaft Kit (Includes All Keys) | 1 | Service part / kit | PartsGeek |
| 105-0248 | Camshaft - Spec A through Q | 1 | Service part / kit | PartsGeek |
| 105-0299 | Camshaft - Begin Spec R | 1 | Service part / kit | PartsGeek |
| 110-0814 | Screw, Cylinder Head (3/8-16 X 4-1/4") | 4 | Service part / kit | PartsGeek |
| 110-1221 | Spring, Valve | 2 | Service part / kit | PartsGeek |
| 110-1278 | Valve, Exhaust | 1 | Service part / kit | PartsGeek |
| 110-1320 | Valve, Intake - Early Style | 1 | Service part / kit | PartsGeek |
| 110-1335 | Block Assembly, Cylinder (Includes Parts Marked Plus Tappets) | 1 | Service part / kit | PartsGeek FridayParts $220.35 |
| 110-1871 | Valve, Intake - Late Style | 1 | Service part / kit | PartsGeek |
| 110-2963 | Head, Cylinder With Valves | 1 | Service part / kit | PartsGeek |
| 112-0109 | Piston & Pin, Includes Pin Retaining Rings - Standard - Begin Spec R | 1 | Service part / kit | PartsGeek |
| 112-0173 | Piston & Pin, Includes Pin Retaining Rings - Standard - Spec A through Q | 1 | Service part / kit | PartsGeek |
| 113-0130 | Ring Set, Piston - Standard | 1 | Service part / kit | PartsGeek |
| 114-0168 | Rod Assembly, Connecting | 1 | Service part / kit | PartsGeek |
| 123-0458 | Cap, Breather - Spec A through Q | 1 | Service part / kit | PartsGeek |
| 123-0645 | Valve, Breather - Spec A through Q | 1 | Service part / kit | PartsGeek |
| 402-0036 | Mount, Vibration - Cylindrical Shaped - Upper - Spec A and B | 1 | Service part / kit | PartsGeek |
| 402-0038 | Mount, Vibration - Cylindrical Shaped - Lower - Spec A and B | 1 | Service part / kit | PartsGeek |
| 402-0046 | Bushing, Spacer | 4 | Service part / kit | PartsGeek |
| 505-0002 | Nipple, Pipe (1/2" x 3") Sets Without Housing or Skid Mounting | 1 | Service part / kit | PartsGeek |
| 505-0014 | Coupling, Pipe (1/2') | 1 | Service part / kit | PartsGeek |
| 505-0056 | Plug, Pipe - Square Head (1/2") | 1 | Service part / kit | PartsGeek |
| 516-0072 | Screw, Drive | 4 | Service part / kit | PartsGeek |
| 516-0141 | Pin, Dowel - Gearcase Locating | 1 | Service part / kit | PartsGeek |
| 517-0053 | Plug, Camshaft Opening | 1 | Service part / kit | PartsGeek |
| 805-0019 | Bolt, Place (Special) | 6 | Service part / kit | PartsGeek |
| A935 | ENGINESPEED ADJ USTM ENT STUD AND NUT | Service part / kit | PartsGeek | |
| A937 | O" RING | 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.