HomeCummins/OnanCummins/Onan 17.5RDJF-3CR

Cummins/Onan 17.5RDJF-3CR Generator Set

The Cummins/Onan 17.5RDJF-3CR is a 17.5 kW (21.88 kVA) Diesel standby generator set powered by a Cummins/Onan RDJF engine. It is available at 120/240 V, single-phase and 60 Hz. It holds about 11.36 L (3.0 gal) of oil and 11.36 L (3.0 gal) of coolant. Starting uses 2 group-IH batteries at 12 V. The set measures 1574×686×1019 mm (62.0×27.0×40.1 in) and weighs about 507 kg (1118 lb).

17 kW
Standby
2.3 L
Displacement
11.36 L
Oil capacity
1
Document types

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

Typical fuel consumption for 15–20 kW Diesel generators →

Compare with other 15–20 kW Diesel generators →

Service parts for the 17.5RDJF-3CR

Grouped by system, with how many of each the parts manual calls for.

Oil system

1 required

Prices captured from merchant listings; some links are affiliate links. Confirm against your serial number before ordering.

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power17 kW
Standby kVA21
Oil capacity11.36 L
AlternatorYD (4-pole)
Voltage options120/240 V
Phase1
Power factor1.0
Battery groupIH
Battery voltage12 V
Battery quantity2
Coolant capacity11.36 L
Dimensions (L×W×H)1574×686×1019 mm
Dry weight507 kg

Engine

Cummins/Onan RDJF
Oil capacity11.36 L
Coolant capacity11.36 L
Displacement2.3 L
AspirationNaturally Aspirated
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan RDJF
ItemSpecCapacityPart #Interval
Air filterDry
Oil filterFilter122-0185 Amazon $8.99 Amazon eBay $19.55 eBay
OilType: Light11.36 quarts

Common questions

What is the power rating of the Cummins/Onan 17.5RDJF-3CR?

The Cummins/Onan 17.5RDJF-3CR is rated 17 kW standby (21.875 kVA).

Which engine powers the Cummins/Onan 17.5RDJF-3CR?

The Cummins/Onan 17.5RDJF-3CR is powered by the Cummins/Onan RDJF engine.

Is the Cummins/Onan 17.5RDJF-3CR diesel or gas?

The Cummins/Onan 17.5RDJF-3CR runs on Diesel.

What is the oil capacity of the Cummins/Onan 17.5RDJF-3CR?

The Cummins/Onan RDJF engine in the Cummins/Onan 17.5RDJF-3CR has an oil capacity of 11.36 liters.

What alternator comes on the Cummins/Onan 17.5RDJF-3CR?

The Cummins/Onan 17.5RDJF-3CR uses a YD alternator. It has 4 poles.

Which oil filter part number does the Cummins/Onan 17.5RDJF-3CR take?

The Cummins/Onan 17.5RDJF-3CR uses oil filter part number 122-0185.

Parts

27
Part #DescriptionQtySystem
110-1852Gasket, Head2Gasket Amazon eBay
120-0547Pump Assembly, Oil1Pump Amazon eBay $295.00
122-01821 Adapter, Oil Filter 71Oil filter Amazon eBay
122-0185Oil Filter1Oil filter Amazon $8.99 Amazon eBay $19.55 eBay
147-0043Nozzle Only (Component of Nozzle & Holder Assembly)1Injector Amazon eBay
147-0044Shield, Nozzle Heat (Steel)8Injector Amazon eBay
147-0134+Nozzle - Includes Nozzle Gasket 504Injector Amazon eBay
149-1046Repair Kit, Fuel Pump1Fuel pump Amazon eBay
333-0106Glow Plug (12 Volt)2Glow plug Amazon eBay
509-00904 Seal, Oil Intake Valve (Includes Retaining Rings) 122Seal Amazon eBay
104-0464Crankshaft1Service part / kit Amazon eBay
110-1221Spring, Valve8Service part / kit Amazon eBay
110-1268INSERT, VALVE SEAT, INTAKE & EXHAUST (Stellite) Standard8Service part / kit Amazon eBay
110-1278Valve, Exhaust (Stellite)4Service part / kit Amazon eBay
110-1320Valve, Intake8Service part / kit Amazon eBay $49.99
110-1456HEAD, CYLINDER (Without Heat Exchanger)2Service part / kit Amazon eBay
110-1501Guide, Valve8Service part / kit Amazon eBay
110-1541HEAD, CYLINDER (With Heat Exchanger)2Service part / kit Amazon eBay
110-1856HEAD, CYLINDER (Includes Push Rod Guide, Valve Guides and Valve Seat)2Service part / kit Amazon eBay
112-0118PISTON AND PIN (Includes Pin Retaining Rings)4Service part / kit Amazon eBay
113-0137Ring, Retaining - Piston Pin4Service part / kit Amazon eBay
114-0164Wearing Half - Connecting Rod - Standard2Service part / kit Amazon eBay
114-0168Rod Assembly, Connecting4Service part / kit Amazon eBay
115-0149Rod, Valve-Push (Steel)8Service part / kit Amazon eBay
115-01958 Begin Spec P 192Service part / kit Amazon eBay
120-0539Valve, Oil By-Pass1Service part / kit Amazon eBay
502-0065ELBOW, NOZZLE (Fuel Return Line) Inverted 45 Degrees (#1 and 4 Cylinders)2Service 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.

Available documents

Operator's manual — 974-0308 Onan RDJF Operator's and Parts Manual (1-1974) (Cummins/Onan)
Full service, cheapest listings

Priced items from this model's own parts manual.

Oil filter 122-0185$8.99
1 priced item$8.99