HomeCummins/OnanCummins/Onan CS1250-6

Cummins/Onan CS1250-6 Generator Set

The Cummins/Onan CS1250-6 is a 1020 kW (1276 kVA) Diesel standby generator set powered by a Cummins/Onan KTA38-G4 engine. It is available at 220 V and 480 V, Single-phase and 60 Hz. It holds about 135 L (35.7 gal) of oil and 307 L (81.1 gal) of coolant, with a maximum ambient rating of 40 °C. The set weighs about 2210 kg (4872 lb).

1020 kW
Standby
37.7 L
Displacement
135.0 L
Oil capacity
1
Document types

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

Specifications

FuelDiesel
Frequency60.0 Hz
Standby power1020 kW
Standby kVA1276
ControllerPCL
Oil capacity135.0 L
Voltage options220 V, 480 V
PhaseSingle
Coolant capacity307 L
Max ambient40 °C
Dry weight2210 kg

Engine

Cummins/Onan KTA38-G4
Oil capacity128.7 L
Displacement37.7 L
AspirationTurbocharged and Aftercooled
Rated speed1800 rpm

Common questions

What is the power rating of the Cummins/Onan CS1250-6?

The Cummins/Onan CS1250-6 is rated 1020 kW standby (1276.0 kVA).

What engine does the Cummins/Onan CS1250-6 use?

The Cummins/Onan CS1250-6 is powered by the Cummins/Onan KTA38-G4 engine.

What fuel does the Cummins/Onan CS1250-6 use?

The Cummins/Onan CS1250-6 runs on Diesel.

What is the oil capacity of the Cummins/Onan CS1250-6?

The Cummins/Onan KTA38-G4 engine in the Cummins/Onan CS1250-6 has an oil capacity of 128.7 liters.

Parts

43
Part #DescriptionQtySystem
009492Angle, Air Cleaner MIG2Angle PartsGeek
009515Heat Shield, Hose Insulation2Heat shield PartsGeek
009577Mounting Plate1Mounting plate PartsGeek
009578Side Support LH1Side support PartsGeek
009579Side Support RH1Side support PartsGeek
009580Support Plate1Support plate PartsGeek
009581Air Cleaner Kit (Normal Duty) – 03SC0581Kit PartsGeek
009762Induction Tube, 6” x 350 mm2Induction tube PartsGeek
010112Thermostat2Thermostat PartsGeek
010156Heater Hose Connection2Connection PartsGeek
0101591” NPT x 16 I/D Hose Connector2Connector PartsGeek
010167Heater Support2Support PartsGeek
011250Battery Link2Link PartsGeek
011261Battery Lead (-VE)1Battery lead PartsGeek
011262Battery Lead (+VE)1Battery lead PartsGeek
011270Battery Lead, +ve1Battery lead PartsGeek
011281STR/STR - STR/Earth Lead (-VE)2Lead PartsGeek
01930388Sender, Oil Temperature1Sensor PartsGeek
0300-4623-26DFJD (600V)1Current transformer PartsGeek
0300-4623-51DFJD BR (0-480V)1Current transformer PartsGeek
03090269Switch, Low Engine Temperature (LET)1Switch PartsGeek
035090Battery Clamp1Clamp PartsGeek
035095Clamp Bolt2Bolt PartsGeek kuduparts $239.99
035105Battery Tray1Tray PartsGeek
049001Clip4Clip PartsGeek
05050151Reducer, 1/2” x 1/8” NPT1Reducer PartsGeek
05086111/4’’ NPT x 1’’ NPT Hex Nipple2Nipple PartsGeek
052045Lead Acid Battery - Dry (Export)4Battery PartsGeek
418520Battery Terminal, On Line4Terminal PartsGeek
427560Battery Boot, Single Outlet2Boot PartsGeek
427561Battery Boot, Copper Link2Boot PartsGeek
706187M4 x 12 mm Steel Cheesehead Screw8Screw PartsGeek
715250M8 Steel Wing Nuts2Nut PartsGeek
716007M4 Plain Washer, Thick, Steel, Form A8Washer PartsGeek
960-0504PCC Control Service Manual*Service manual PartsGeek
960-0507Detector Control Service Manual**Service manual PartsGeek
332-2634Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)10Service 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
960-0104Service part / kit PartsGeek
960-0142Service part / kit PartsGeek
960-0263Service part / kit PartsGeek
960-0606Service 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

Spec sheet — KTA38 60HZ 928~1020kw (Cummins/Onan)