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Home›Engines›Cummins/Onan KTA38 G14

Cummins/Onan KTA38 G14 Engine

The Cummins/Onan KTA38 G14 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 KTA38 G14

Part of the Cummins/Onan KTA38 engine family — 13 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

93
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 (Cooling System - Standpipe)hose
503-0788Hose (Cooling System - Standpipe)hose
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)other_service
151-0419Actuator (Electric Governor)other_service
159-0020Cap, Tankother_service
307-0839Valve, Solenoid (Cooling System - Standpipe)other_service
307-1861Valve, Solenoid (Overhead Supply)other_service
309-0407Valve, Float (Overhead Supply)other_service
3096680Piston STC 13.8:1 Ratioother_service
3096681Piston KT Series 15.5:1 Ratioother_service
3096682Piston KTA Series 14.5:1 Ratioother_service
3096683Piston 13.5:1 Ratioother_service
3096684Piston KTA 15.7:1 Ratioother_service
3096685Piston STC 13.9:1 Ratioother_service
331-0027Switch, Thermostaticother_service
332-2634Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)other_service
3628731Piston STC Kitother_service
3630913Piston KTA-50-G7other_service
3631241Piston Kit STC 13.9:1 Ratioother_service
3631242Piston Kit 13.5:1 Ratioother_service
3631243Piston Kit KTA 15.7:1 Ratioother_service
3631244Piston Kit KTA Series 14.5:1 Ratioother_service
3631245Piston Kit KT Series 15.5:1 Ratioother_service
3631246Piston Kit STC 13.8:1 Ratioother_service
3803530Piston Assembly STCother_service
3804747Piston Kit KTA-50-G7other_service
3804885Piston KTA-50-G8/G9other_service
4089847Piston Kit GTA38/19other_service
4090013Piston Kit KTA-38-M2other_service
4090029Piston Kit QSK19CEother_service
4090181Piston GTA38/19other_service
4097889Piston KTA-38-M2other_service
4910463Piston QSK19R/Mother_service
4910465Piston QSK Seriesother_service
4916177Piston GTA/GQSK19other_service
4918058Piston QSK19CEother_service
4922319Piston QSK19Cother_service
4955233Piston Kit QSK19R/Mother_service
4955235Piston Kit QSK Seriesother_service
4955236Piston Kit QSK19Cother_service
4955238Piston Kit GTA/GQSK19other_service
508-0018Washer, Insulating (1/4" ID)other_service
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)other_service
518-0548-42Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper)other_service
960-0104other_service
960-0142other_service
960-0263other_service
960-0606other_service
960-0609other_service
M-3804747Piston Kitother_service
V2403-M-E3BGEngine Modelother_service
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
309-0243Valve, Control - Temperature Regulatingthermostat
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 KTA38 G14?

The Cummins/Onan KTA38 G14 has a displacement of 38.0 liters with 12 cylinders.

Which generators use the Cummins/Onan KTA38 G14 engine?

The Cummins/Onan KTA38 G14 powers 2 generator set(s), including Cummins/Onan C1000 D2R, Cummins/Onan C1100 D5B.