HomeCummins/OnanCummins/Onan QSK78

Cummins/Onan QSK78 Generator Set

Cummins/Onan QSK78 generator set: . Specifications, engine details, filters, oil capacity and 5 document types.

5
Document types

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

Specifications

Ratings spec sheet not in our library yet — see the documents below.

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filter find
Fuel filter find
Oil filter find
Belt find
Coolant
Oil

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Parts

46
Part #DescriptionQtySystem
A049E322Belt (Matched Set)1Belt buy
550224grease0.09 kg minimumService part / kit buy
550226ear mesh grease1.12 kgService part / kit FridayParts $39.99
5572840Cylinder Head Lifting Handle KitService part / kit buy
5572936Threaded Fitting Clean Care KitService part / kit buy
5573037Camshaft Removal & Installation KitService part / kit buy
5573156Retaining CompoundService part / kit buy
A023-259Coupling, Flexible1Service part / kit buy
A023-270Coupling, Flexible1Service part / kit buy
A023-271Coupling, Flexible1Service part / kit buy
A023-272Coupling, Flexible1Service part / kit buy
A023-4121-01Screw, Hex Head (M12 x 1.75 x 55)16Service part / kit buy
A023-4121-02Screw, Hex Head (M12 x 1.75 x 55)16Service part / kit buy
A023-4121-03Screw, Hex Head (M12 x 1.75 x 55)16Service part / kit buy
A023-4121-04Screw, Hex Head (M12 x 1.75 x 55)16Service part / kit buy
A023-4121-05Screw, Hex Head (M12 x 1.75 x 55)16Service part / kit buy
A023-4121-06Screw, Hex Head (M12 x 1.75 x 55)8Service part / kit buy
A023-4126-01Screw, Hex Head (M12 x 1.75 x 55)8Service part / kit buy
A023-4126-02Screw, Hex Head (M12 x 1.75 x 55)8Service part / kit buy
A023-4126-03Screw, Hex Head (M12 x 1.75 x 55)8Service part / kit buy
A023-4126-04Screw, Hex Head (M12 x 1.75 x 55)8Service part / kit buy
A023-4126-05Screw, Hex Head (M12 x 1.75 x 55)8Service part / kit buy
A023-4918-02Skid1Service part / kit buy
A023-4919-02Skid1Service part / kit buy
A023-4933-02Pad, Jacking − “E”, “F” and “G” Generators8Service part / kit buy
A023-5083-02Skid1Service part / kit buy
A023-5130-02Crossmember, Skid − Upper1Service part / kit buy
A023-5131-02Crossmember, Skid − Lower1Service part / kit buy
A023-5132-02Plate, Skid1Service part / kit buy
A023-6308Screw, Hex Head (M36 x 4 x 100)4Service part / kit buy
A023-6311Screw, Hex Head (M20 x 1.5 x 45)8Service part / kit buy
A030A823Nut (M10)1Service part / kit buy
A030W925Pipe, J/W Bottom − Assy.1Service part / kit buy
A030W929Pipe, LTA L/H1Service part / kit buy
A030W930Pipe, LTA L/H1Service part / kit buy
A030W931Pipe, LTA L/H1Service part / kit buy
A030W936Pipe, LTA R/H1Service part / kit buy
A030W939Pipe, LTA R/H1Service part / kit buy
A030W940Pipe, LTA R/H1Service part / kit buy
A041E813U-Bolt1Service part / kit buy
A041E815Bracket, Pipe Support1Service part / kit buy
A041E817Pully1Service part / kit buy
A049D324Clamp, U-Bolt1Service part / kit buy
A049D330Screw, Set (M8 x 25)2Service part / kit buy
A049D335Bush, Taperlock1Service part / kit buy
A049W329Washer (M10)1Service 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 sheetInstallation manualReferenceParts manualService manual