HomeCummins/OnanCummins/Onan C1250 D2R

Cummins/Onan C1250 D2R Generator Set

The Cummins/Onan C1250 D2R is a 1000 kW prime generator set powered by a Cummins/Onan KTA 50 G3 engine. It holds about 254 L (67.1 gal) of oil and 351 L (92.7 gal) of coolant. An integrated tank holds 68000 L (17963.7 gal).

50.3 L
Displacement
254.0 L
Oil capacity
3
Document types

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

Specifications

Prime power1000 kW
Oil capacity254.0 L
Fuel tank68000.0 L

Engine

Cummins/Onan KTA 50 G3
Oil capacity254.0 L
Coolant capacity351.0 L
Displacement50.3 L
AspirationTurbocharged-Aftercooled
Rated speed1800 rpm

Maintenance & consumables

for the Cummins/Onan KTA 50 G3
ItemSpecCapacityPart #Interval
Air filter find
Fuel filter find
Oil filter find
Belt find
Coolant440.0 l
OilLube Oil Filter Types: Five spin-on, full flow177.0

Common questions

What engine does the Cummins/Onan C1250 D2R use?

The Cummins/Onan C1250 D2R is powered by the Cummins/Onan KTA 50 G3 engine.

What is the oil capacity of the Cummins/Onan C1250 D2R?

The Cummins/Onan KTA 50 G3 engine in the Cummins/Onan C1250 D2R has an oil capacity of 254.0 liters.

Parts

29
Part #DescriptionQtySystem
140-1548Element, Air Cleaner2Air filter Amazon eBay $91.60
140-2501Cleaner, Air (Disposable)2Air filter FridayParts $152.02
140-2502Band, Mounting – Air Cleaner4Air filter Amazon eBay $59.99
502-1162Connector, Hose (3/8")2Hose buy
503-0685Clamp, Hose2Hose buy
503-1484Elbow, Hose (45 Deg) (7" ID)2Hose buy
503-1620Hose – Bulk (3/8" ID) (Order by the Foot)-Hose buy
503-1870-11Clamp, Hose2Hose buy
503-1870-12Clamp, Hose2Hose buy
960-0504PCC Control Service Manual*Service manual buy
960-0507Detector Control Service Manual**Service manual buy
140-1260Fitting, Safety Filter2Service part / kit Amazon eBay $35.00
140-2508Tube, Air Inlet (7" x 9" - 3/4")2Service part / kit Amazon eBay $129.95
140-2528Shield – Air In Heat1Service part / kit buy
309-0635-02Valve, Check2Service part / kit buy
503-1717Elbow, Reducer (45 Deg) (7" ID to 6" ID)2Service part / kit buy
503-1720Insert, Reducer (6" OD to 5-1/2" ID)2Service part / kit buy
505-0017Bushing, Pipe – Reducer (3/8" to 1/4")2Service part / kit dieselpartscenter $2032.36
505-0376Elbow – 45 Deg (3/8")2Service part / kit buy
526-0030Washer, Flat (3/8")8Service part / kit buy
800-0055Screw, Cap – Hex Head (3/8–16 x 2-1/4")8Service part / kit buy
800-0094Screw, Cap – Hex Head (1/2–13 x 2")8Service part / kit buy
821-0029Screw, Self–Locking – Hex Washer Head (3/8–16 x 3/4")8Service part / kit buy
821-0033Screw, Self–Locking – Hex Washer Head (7/16–14 x 3/4")8Service part / kit buy
821-5004-03Screw, Self-Locking – Hex Washer Head (3/8–16 x 1")2Service part / kit buy
870-0281Nut, Self-Locking – Hex Washer Head (3/8–16)2Service part / kit buy
960-0606Service part / kit buy
960-0608Service part / kit buy
F-2375A single line drawing of the prime power systemService part / kit buy

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

Spec sheetReferenceParts manual

Other sets with this engine