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Home›Engines›Cummins/Onan KTA38G14

Cummins/Onan KTA38G14 Engine

The Cummins/Onan KTA38G14 is a 38 L 12-cylinder turbo charged, charge air cooled engine rated at 1500 rpm, producing up to 950 kW. It powers generator sets from Cummins/Onan, including the C1000 D2R and C1100 D5B.

Also known as: KTA38 G14, Cummins Inc. KTA38G14

Part of the Cummins/Onan KTA38 engine family — 20 variants share parts & fitment.

38.0 L
Displacement
12
Cylinders
1500 rpm
Rated speed
950 kW
Gross power
On this pageSpecsGenerator setsMaintenanceFAQ

Engine specifications

Displacement38.0 L
Cylinders12
Aspirationturbo charged, charge air cooled
Rated speed1500 rpm
Gross power950 kW

Maintenance schedule

ItemSpecCapacityPart #Interval
Air filterHeavy duty air cleaner—
Fuel filterDual spin on paper element fuel filters—
Oil filterSpin on full flow filter—
BatteryBattery charger, Battery isolator—
BeltWater jacket heater, Coolant heater, PMG excitation system, 900 L fuel tank, Fuel pre-filter with water separator, External fuel connection (3-way valve), Side external gauge for fuel, Electric fuel pump with external fuel connection—
CoolantCoolant heater, 50 ºC ambient radiator—
Oil38 L lubricating oil tank38.0 L—
Spark plug—

Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.

Parts cataloged across the Cummins/Onan KTA38 family

88
Part #DescriptionCategory
UC224CAlternator ModelAlternator
UC274FAlternator ModelAlternator
052045Lead Acid Battery - Dry (Export)Battery
011261Battery Lead (-VE)Battery lead
011262Battery Lead (+VE)Battery lead
011270Battery Lead, +veBattery lead
035095Clamp BoltBolt
427560Battery Boot, Single OutletBoot
427561Battery Boot, Copper LinkBoot
035090Battery ClampClamp
049001ClipClip
010156Heater Hose ConnectionConnection
0101591” NPT x 16 I/D Hose ConnectorConnector
0300-4623-26DFJD (600V)Current transformer
0300-4623-51DFJD BR (0-480V)Current transformer
149-1689Element (Dual Fuel/Water Separator)Fuel filter
FF202Fuel, Spin-OnFuel filter
FS1216Fuel/Water Sep Spin-OnFuel filter
155-0675Gasket (Water Outlet)Gasket
155-1030Gasket (Exhaust Header)Gasket
415-0486Gasket (Fuel Tank - Overhead/Underground Supply)Gasket
526-0063Gasket (Fuel Tank)Gasket
M-4352580Upper Gasket SetGasket
503-0359Hose (1-5/8" I.D. x 3 ' )'Hose
503-0788Hose (Cooling System - Standpipe)Hose
518-0548-24Clamp, HoseHose
3822575Injector and valve adjustment kitInjector
011281STR/STR - STR/Earth Lead (-VE)Lead
011250Battery LinkLink
05086111/4’’ NPT x 1’’ NPT Hex NippleNipple
715250M8 Steel Wing NutsNut
151-0399Controller (Electric Governor)Service part / kit
151-0419Actuator (Electric Governor)Service part / kit
159-0020Cap, TankService part / kit
307-0839Valve, SolenoidService part / kit
307-1861Valve, Solenoid (Overhead Supply)Service part / kit
309-0243Valve, Control - Temperature RegulatingService part / kit
309-0407Valve, Float (Overhead Supply)Service part / kit
3096680Piston STC 13.8:1 RatioService part / kit
3096681Piston KT Series 15.5:1 RatioService part / kit
3096682Piston KTA Series 14.5:1 RatioService part / kit
3096683Piston 13.5:1 RatioService part / kit
3096684Piston KTA 15.7:1 RatioService part / kit
3096685Piston STC 13.9:1 RatioService part / kit
331-0027Clamp, Junction Box - Spec A through GService part / kit
332-2634Clamp, HoseService part / kit
3628731Piston STC KitService part / kit
3630913Piston KTA-50-G7Service part / kit
3631241Piston Kit STC 13.9:1 RatioService part / kit
3631242Piston Kit 13.5:1 RatioService part / kit
3631243Piston Kit KTA 15.7:1 RatioService part / kit
3631244Piston Kit KTA Series 14.5:1 RatioService part / kit
3631245Piston Kit KT Series 15.5:1 RatioService part / kit
3631246Piston Kit STC 13.8:1 RatioService part / kit
3803530Piston Assembly STCService part / kit
3804747Piston Kit KTA-50-G7Service part / kit
3804885Piston KTA-50-G8/G9Service part / kit
4089847Piston Kit GTA38/19Service part / kit
4090013Piston Kit KTA-38-M2Service part / kit
4090029Piston Kit QSK19CEService part / kit
4090181Piston GTA38/19Service part / kit
4097889Piston KTA-38-M2Service part / kit
4910463Piston QSK19R/MService part / kit
4910465Piston QSK SeriesService part / kit
4916177Piston GTA/GQSK19Service part / kit
4918058Piston QSK19CEService part / kit
4922319Piston QSK19CService part / kit
4955233Piston Kit QSK19R/MService part / kit
4955235Piston Kit QSK SeriesService part / kit
4955236Piston Kit QSK19CService part / kit
4955238Piston Kit GTA/GQSK19Service part / kit
508-0018Washer, Insulating (1/4" ID)Service part / kit
518-0548-42Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)Service part / kit
M-3804747Piston KitService part / kit
V2403-M-E3BGEngine ModelService part / kit
05050151Reducer, 1/2” x 1/8” NPTReducer
706187M4 x 12 mm Steel Cheesehead ScrewScrew
01930388Sender, Oil TemperatureSensor
150-0717Switch Assembly, OverspeedSensor
151-0411Pickup, MagneticSensor
960-0504PCC Control Service ManualService manual
960-0507Detector Control Service ManualService manual
010167Heater SupportSupport
03090269Switch, Low Engine Temperature (LET)Switch
418520Battery Terminal, On LineTerminal
010112ThermostatThermostat
035105Battery TrayTray
716007M4 Plain Washer, Thick, Steel, Form AWasher

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Common questions

What is the displacement of the Cummins/Onan KTA38G14?

The Cummins/Onan KTA38G14 has a displacement of 38.0 liters with 12 cylinders.

Which generators use the Cummins/Onan KTA38G14 engine?

The Cummins/Onan KTA38G14 powers 2 generator set(s), including Cummins/Onan C1000 D2R, Cummins/Onan C1100 D5B.