HomeCummins/OnanCummins/Onan 3.0DJA-2R

Cummins/Onan 3.0DJA-2R Generator Set

The Cummins/Onan 3.0DJA-2R is a 3 kW Diesel standby generator set powered by a Cummins/Onan DJA engine. It is available at 240 V, Single-phase and 60 Hz.

3 kW
Standby
0.49 L
Displacement
0
Document types

How to read your Cummins/Onan serial & model number →

Compare with other 0–5 kW Diesel generators →

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power3 kW
Voltage options240 V
PhaseSingle

Engine

Cummins/Onan DJA
Displacement0.49 L
AspirationAir-cooled
Rated speed2400 rpm

Maintenance & consumables

for the Cummins/Onan DJA
ItemSpecCapacityPart #Interval
Air filter find
Fuel filter300 hr find
Oil filter50 hr find
Belt50 hr find
Coolant600 hr
Oil

Common questions

What is the power rating of the Cummins/Onan 3.0DJA-2R?

The Cummins/Onan 3.0DJA-2R is rated 3 kW standby.

What engine does the Cummins/Onan 3.0DJA-2R use?

The Cummins/Onan 3.0DJA-2R is powered by the Cummins/Onan DJA engine.

What fuel does the Cummins/Onan 3.0DJA-2R use?

The Cummins/Onan 3.0DJA-2R runs on Diesel.

Parts

51
Part #DescriptionQtySystem
101-0386Gasket and Shim Kit, Rear Bearing Plate1Gasket PartsGeek
120-0572Tube, Crankcase Oil1Hose PartsGeek
123-06671 Gasket1Gasket PartsGeek
123-0716Cap and Valve Assembly, Breather1Gasket PartsGeek
123-0724Tube, Oil Fill1Hose PartsGeek
1777777/77ASBESTOS GASKETGasket PartsGeek
333-0106Glow Plug (12 Volt)1Glow plug PartsGeek
333-0107Plug, Glow - Key 3-24 Volt1Glow plug PartsGeek
333-0112Plug, Glow - Key 2, 4-32 Volt1Glow plug PartsGeek
509-0086Seal, Oil, Crankshaft Rear1Seal PartsGeek
509-0090Seal, Valve Stem - ‘Intake “2Seal PartsGeek
509-0132#+Seal, Oil - Intake Valve ARM, ROCKER2Seal PartsGeek
A936SHIFTING SOLENOIDShifting solenoid PartsGeek
101-0337'Plate. Rear Bearing (Less1Service part / kit PartsGeek
101-0359Bearing, Main - Front and Rear - Standard2Service part / kit PartsGeek
101-03631 "Bearing, Precision Cam Front (Standard Only) 81Service part / kit PartsGeek
101-03651 "Bearing, Precision Cam Rear (Standard Only) 8A1Service part / kit PartsGeek
102-0488Base, Oil1Service part / kit PartsGeek
104-0170Screw1Service part / kit PartsGeek
104-0416Gear, Crankshaft1Service part / kit PartsGeek
104-0418Gear1Service part / kit PartsGeek
104-04202 "Washer, Crankshaft Thrust2Service part / kit PartsGeek
104-1288Crankshaft Kit1Service part / kit PartsGeek
105-0248Camshaft - Spec A through Q1Service part / kit PartsGeek
105-0299Camshaft - Begin Spec R1Service part / kit PartsGeek
110-0814Screw, Cylinder Head (3/8-16 X 4-1/4")4Service part / kit PartsGeek
110-1221Valve, Exhaust (Stellite)8Service part / kit PartsGeek
110-1278Valve, Exhaust1Service part / kit PartsGeek
110-1320Valve, Intake1Service part / kit PartsGeek
110-1335Block Assembly, Cylinder (Includes Parts Marked Plus Tappets)1Service part / kit PartsGeek FridayParts $220.35
110-1871Valve, Intake - Late Style1Service part / kit PartsGeek
110-2963Head, Cylinder With Valves1Service part / kit PartsGeek
112-0109Piston & Pin, Includes Pin Retaining Rings - Standard - Begin Spec R1Service part / kit PartsGeek
112-0173Piston & Pin, Includes Pin Retaining Rings - Standard - Spec A through Q1Service part / kit PartsGeek
113-0130PISTON AND CONNECTING ROD GROUP REF. NO PART NO. RING SET1Service part / kit PartsGeek
114-0168Rod Assembly, Connecting4Service part / kit PartsGeek
123-0315Valve, Breather1Service part / kit PartsGeek
123-04581 Spec A through H1Service part / kit PartsGeek
123-06451 "Tube, Breather - Spec A through S 211Service part / kit PartsGeek
402-00364 Mount, Upper Vibration (Cylindrical Shaped) - Spec A through H1Service part / kit PartsGeek
402-00382 Engine End1Service part / kit PartsGeek
402-00464 Spec A through H . 402- 0290 ' 44Service part / kit PartsGeek
505-0002Nipple (1-1/2" x 3")1Service part / kit PartsGeek
505-0014Coupling (1/2")1Service part / kit PartsGeek
505-00561 Plug (1/2")1Service part / kit PartsGeek
516-0072Pin, Drive - Bearing Stop4Service part / kit PartsGeek
516-0141Filter, Breather2Service part / kit PartsGeek
517-00531 "Plug, Expansion Rear Camshaft Opening1Service part / kit PartsGeek
805-00196 "Bolt (3/8-16 x 1-1/4") - Rear Bearing Plate6Service part / kit PartsGeek
A935ENGINESPEED ADJ USTM ENT STUD AND NUTService part / kit PartsGeek
A937O" RINGService 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.

Available documents