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Home›Cummins/Onan›Cummins/Onan KTA50

Cummins/Onan KTA50 Generator Set

The Cummins/Onan KTA50 is a 1227 kW (1459.3 kVA) standby generator set powered by a Cummins/Onan KTA 50 G3 engine. It is available at 24 V, 50 Hz. It holds about 177 L (46.8 gal) of oil and 152 L (40.2 gal) of coolant, with a maximum ambient rating of 55.6 °C. The set measures 3275×2000×2200 mm (128.9×78.7×86.6 in) and weighs about 5900 kg (13007 lb).

1227 kW
Standby
50.3 L
Displacement
177.0 L
Oil capacity
3
Document types

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

Specifications

Frequency50.0 Hz
Standby power1227 kW
Prime power1097 kW
Oil capacity177.0 L
Alternator55A
Voltage options24 V
Coolant capacity152.0 L
Max ambient[55.6, 51.0] °C
Dimensions (L×W×H)3275×2000×2200 mm
Dry weight5900 kg

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 filter140-2501 PartsGeek FridayParts $152.02
Fuel filterFS1006 Amazon eBay $39.99 PartsGeek
Fuel filterFuel/Water Separator—1800 hr find
Oil filterLF3325 Amazon eBay $176.70 PartsGeek
Belt— find
Coolant440.0 l—3600 hr
OilLube Oil Filter Types: Five spin-on, full flow177.0—3600 hr

Common questions

What is the power rating of the Cummins/Onan KTA50?

The Cummins/Onan KTA50 is rated 1227 kW standby.

What engine does the Cummins/Onan KTA50 use?

The Cummins/Onan KTA50 is powered by the Cummins/Onan KTA 50 G3 engine.

What is the oil capacity of the Cummins/Onan KTA50?

The Cummins/Onan KTA 50 G3 engine in the Cummins/Onan KTA50 has an oil capacity of 254.0 liters.

What alternator does the Cummins/Onan KTA50 use?

The Cummins/Onan KTA50 uses a 55A alternator.

Parts

140
Part #DescriptionQtySystem
0300-4623-29DFLB (600V)1Current transformer PartsGeek
0300-4623-30DFLC (600V)1Current transformer PartsGeek
0300-4623-33DFLE (600V)1Current transformer PartsGeek
0300-4623-52DFLB BR (0-480V)1Current transformer PartsGeek
0300-4623-54DFLC BR (0-480V)1Current transformer PartsGeek
0300-4623-57DFLE BR (0-480V)1Current transformer PartsGeek
106069SCREW, HEXAGON HEAD CAP6Bolt PartsGeek
140-2096Element, Primary (Outer)2Air filter PartsGeek
140-2097Cleaner, Air (Includes Elements)2Air filter PartsGeek FridayParts $856.89
140-2467Element, Safety (Inner)2Air filter PartsGeek
140-2501Cleaner, Air (Disposable)2Air filter PartsGeek FridayParts $152.02
140-2502Band, Mounting – Air Cleaner4Air filter Amazon eBay $59.99 PartsGeek
140-3163Cleaner, Air (No Replaceable Element)2Air filter Amazon eBay $23.99 PartsGeek
140-3230Cleaner, Air (Includes Elements - See Ref. No. 25 and 26)2Air filter Amazon eBay $95.60 PartsGeek
148582DOE, PIN2Dowel pin PartsGeek
205059WASHER, PLAIN4Gasket PartsGeek
205230BUSSING34Bushing PartsGeek
205584SCREW, TWELVE POINT CAP18Bolt PartsGeek
205684BRACKET, LIFTING4Bracket lifting PartsGeek
205741SHIM, A/R .007 Inch O/S8Shim PartsGeek
205742SHIM, A/R .008 Inch O/S8Shim PartsGeek
205743SHIM, A/R .009 Inch O/S8Shim PartsGeek
205744SHIM, A/R .020 Inch O/S8Shim PartsGeek
205745SHIM, A/R .031 Inch O/S8Shim PartsGeek
206028SCREW, SOCKET HEAD CAP4Bolt PartsGeek
206224PLUG, EXPANSION2Expansion plug PartsGeek
206580BEARING, MAIN7Main bearing PartsGeek
206581BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Upper7Main bearing PartsGeek
206582BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Upper7Main bearing PartsGeek
206583BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Upper7Main bearing PartsGeek
206584BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Upper7Main bearing PartsGeek
206587CAP, MAIN BEARING7Bearing cap PartsGeek
206588CAP, MAIN BEARING7Bearing cap PartsGeek
206590BEARING, MAIN7Main bearing PartsGeek
206591BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Lower7Main bearing PartsGeek
206592BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Lower7Main bearing PartsGeek
206593BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Lower7Main bearing PartsGeek
206594BEARING, MAIN A/R No.2,3,4,5,6,7,&8, Lower7Main bearing PartsGeek
206600BEARING, MAIN2Main bearing PartsGeek
206601BEARING, MAIN A/R No.1&9, Upper2Main bearing PartsGeek
206602BEARING, MAIN A/R No.1&9, Upper2Main bearing PartsGeek
206603BEARING, MAIN A/R No.1&9, Upper2Main bearing PartsGeek
206604BEARING, MAIN A/R No.1&9, Upper2Main bearing PartsGeek
206610BEARING, MAIN2Main bearing PartsGeek
206611BEARING, MAIN A/R No.1&9, Lower2Main bearing PartsGeek
206612BEARING, MAIN A/R No.1&9, Lower2Main bearing PartsGeek
206613BEARING, MAIN A/R No.1&9, Lower2Main bearing PartsGeek
206614BEARING, MAIN A/R No.1&9, Lower2Main bearing PartsGeek
206742PLUG, EXPANSION16Expansion plug PartsGeek
3000138SUPPORT, BEARING1Support bearing PartsGeek
3000139BEARING, THRUST2Thrust bearing PartsGeek
3001708BEARING, THRUST A/R .010 Inch O/S2Thrust bearing PartsGeek
3001709BEARING, THRUST A/R .020 Inch O/S2Thrust bearing PartsGeek
3001710BEARING, THRUST A/R .030 Inch O/S2Thrust bearing PartsGeek
3001711BEARING, THRUST A/R .040 Inch O/S2Thrust bearing PartsGeek
3002993DOE, RING32Gasket PartsGeek
3007525(3022157) KIT, LINER LINER, CYLINDER40Liner kit PartsGeek
3011076SEAL, D RING1Seal PartsGeek
3011884INSERT, LINER1Insert liner PartsGeek
3012611CYLINDER LINER (O/S) KIT, LINER A/R .020 inch O/S1Liner kit PartsGeek
3012612CYLINDER LINER (O/S) KIT, LINER A/R .030 Inch O/S1Liner kit PartsGeek
3014668SEAL, D RING1Seal PartsGeek
3018210SET, MAIN BEARING STANDARD1Main bearing set PartsGeek
3018211SET, MAIN BEARING A/R .010 Inch O/S1Main bearing set PartsGeek
3018212SET, MAIN BEARING A/R .020 Inch O/S1Main bearing set PartsGeek
3018213SET, MAIN BEARING A/R .030 Inch O/S1Main bearing set PartsGeek
3019150INSERT, LINER1Insert liner PartsGeek
3021148INSERT, LINER1Insert liner PartsGeek
3025485WASHER, PLAIN18Gasket PartsGeek
3032633SCREW, TWELVE POINT CAP96Bolt PartsGeek
3033853SHAFT, IDLER2Shaft idler PartsGeek
3081489SEAL, OIL1Seal PartsGeek
3175281SHAFT, IDLER1Shaft idler PartsGeek
3176857DOE, RING9Gasket PartsGeek
3177556SEAL, RECTANGULAR RING6Seal PartsGeek
3177945SCREW, HEX FLANGE HEAD CAP2Bolt PartsGeek
3178450WASHER, PLAIN2Gasket PartsGeek kuduparts $131.00
3178457WASHER, PLAIN3Gasket PartsGeek
3178464PLATE, COVER2Plate cover PartsGeek
3178803CYLINDER BLOCK OPTION BP60891Cylinder block PartsGeek
3178910CYLINDER BLOCK1Cylinder block PartsGeek
3179664VALVE, PISTON COOLING1Valve piston cooling PartsGeek
3628452SCREW, HEXAGON HEAD CAP18Bolt PartsGeek
3628605PLUG, PIPE18Pipe plug PartsGeek
3628607PLUG, PIPE1Pipe plug PartsGeek
3629168PLUG, EXPANSION12Expansion plug PartsGeek
3629497DRAINCOCK3Draincock PartsGeek
3801268CYLINDER LINER (O/S) KIT, LINER A/R .040 Inch O/S1Liner kit PartsGeek
502-1162Connector, Hose (3/8")2Hose PartsGeek
503-0685Clamp, Hose2Hose PartsGeek
503-1484Elbow, Hose (45 Deg) (7" ID)2Hose PartsGeek
503-1620Hose – Bulk (3/8" ID) (Order by the Foot)-Hose PartsGeek
503-1870-11Clamp, Hose2Hose PartsGeek
503-1870-12Clamp, Hose2Hose PartsGeek
68445PIN, GROOVE32Pin PartsGeek
70662DOE, PIN2Dowel pin PartsGeek
960-0504PCC Control Service Manual*Service manual PartsGeek
960-0507Detector Control Service Manual**Service manual PartsGeek
FS1216Fuel/Water Sep Spin-On2Fuel filter Amazon eBay $44.99 PartsGeek
LF3325Lube, Full-Flow Spin-On5Oil filter Amazon eBay $176.70 PartsGeek
S-112SCREW, HEXAGON HEAD CAP12Bolt PartsGeek
S-604WASHER, LOCK12Gasket PartsGeek atldiesel $0.18
S-610WASHER, LOCK6Gasket PartsGeek atldiesel $0.29
140-1260Fitting, Safety Filter2Service part / kit Amazon eBay $35.00 PartsGeek
140-1548Indicator, Service2Service part / kit Amazon eBay $91.60 PartsGeek
140-2098Hood, Air Inlet (Includes Mounting Clamp)2Service part / kit Amazon eBay $49.99 PartsGeek
140-2099Band, Mounting4Service part / kit Amazon eBay $19.99 PartsGeek
140-2395Tube, Air Inlet1Service part / kit PartsGeek
140-2503Bracket, Mounting - Air Cleaner1Service part / kit PartsGeek
140-2504-01Bracket, Mounting (Right Side)1Service part / kit PartsGeek
140-2504-02Bracket, Mounting (Left Side)1Service part / kit PartsGeek
140-2508Tube, Air Inlet (7" x 9" - 3/4")2Service part / kit Amazon eBay $129.95 PartsGeek
140-2509Tube, Air Inlet2Service part / kit PartsGeek
140-2515Bracket, Mounting1Service part / kit PartsGeek
140-2519Tube, Air Inlet2Service part / kit PartsGeek
140-2521Tube, Air Inlet2Service part / kit PartsGeek
140-2528Shield – Air In Heat1Service part / kit PartsGeek
309-0635-02Valve, Check2Service part / kit PartsGeek
332-2634Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)10Service part / kit PartsGeek
503-1717Elbow, Reducer (45 Deg) (7" ID to 6" ID)2Service part / kit PartsGeek
503-1720Insert, Reducer (6" OD to 5-1/2" ID)2Service part / kit PartsGeek
505-0017Bushing, Pipe – Reducer (3/8" to 1/4")2Service part / kit PartsGeek dieselpartscenter $2032.36
505-0376Elbow – 45 Deg (3/8")2Service part / kit PartsGeek
518-0548-24Clamp, Retainer Begin December 1996 Production (Mounted On Top And Side Of Control Box Wrapper On The Side Towards The Control Box Cover)20Service part / kit PartsGeek
518-0548-42Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)20Service part / kit PartsGeek
518-0601Sealant, Thread (6 ml Tube)Service part / kit PartsGeek
525-0304Onan Green Enamel (Gallon Can)Service part / kit PartsGeek
525-0305Onan Green Enamel (12 oz. Pressurized Spray Can)Service part / kit PartsGeek
525-0306Onan Green Enamel (Quart Can)Service part / kit PartsGeek
526-0030Washer, Flat (3/8")8Service part / kit PartsGeek
800-0055Screw, Cap – Hex Head (3/8–16 x 2-1/4")8Service part / kit PartsGeek
800-0094Screw, Cap – Hex Head (1/2–13 x 2")8Service part / kit PartsGeek
821-0029Screw, Self–Locking – Hex Washer Head (3/8–16 x 3/4")8Service part / kit PartsGeek
821-0033Screw, Self–Locking – Hex Washer Head (7/16–14 x 3/4")8Service part / kit PartsGeek
821-5004-03Screw, Self-Locking – Hex Washer Head (3/8–16 x 1")2Service part / kit PartsGeek
870-0281Nut, Self-Locking – Hex Washer Head (3/8–16)2Service part / kit PartsGeek
960-0606Service part / kit PartsGeek
960-0608Service part / kit PartsGeek
F-2061Installation of two C1400 D5 generator setsService part / kit PartsGeek
F-2375A single line drawing of the prime power systemService 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.

Fuel consumption

RatingLoadL/hgal/h
Base25%82.0
Base75%222.0
Continuous100%266.070.4
Prime526.0139.0
Prime25%82.021.7
Prime50%155.040.9
Prime75%222.058.7
Prime100%289.076.3
Standby25%111.0
Standby50%180.0
Standby75%257.0
Standby100%345.091.2

Available documents

Engine spec — cummins-k-series-mining-specs (Cummins/Onan)Engine spec — fr6208 (Cummins/Onan)Spec sheet — 0070366 (Cummins/Onan)Spec sheet — 0070367 (Cummins/Onan)Spec sheet — KTA50-G3 (Cummins/Onan)Spec sheet — KTA50-G8 (Cummins/Onan)Spec sheet — KTA50-G9 (Cummins/Onan)Spec sheet — fr6387 (Cummins/Onan)Spec sheet — fr6416 (Cummins/Onan)Spec sheet — fr6417 (Cummins/Onan)Spec sheet — mg6385 (Cummins/Onan)Spec sheet — rental-generator-sets-rating-cards-international-50-60hz-10-2025Parts manual — cummins-kta50-parts-book-abby (Cummins/Onan)

Other sets with this engine

Cummins/Onan 1120 DFLCCummins/Onan BCC 1400S-50Cummins/Onan C1250 D2RCummins/Onan C1400 D5Cummins/Onan CP1400-6Cummins/Onan CS1600-6Cummins/Onan DFLC