The Cummins/Onan KTA38-G18 is a 37.8 L 12-cylinder turbocharged-aftercooled engine, producing up to 880 kW. It powers generator sets from Cummins/Onan, including the K38 Series and K38 Series C1010 D5 PC.
Also known as: Cummins KTA38-G18
Part of the Cummins/Onan KTA38 engine family — 17 variants share parts & fitment.
| Displacement | 37.8 L |
|---|---|
| Cylinders | 12 |
| Aspiration | Turbocharged-Aftercooled |
| Gross power | 880 kW |
| Part # | Description | Category |
|---|---|---|
| 3044190 | Actuator, 24V, Normally Closed, High Flow, for use on VTA-28, KT(A)38, and KTA-50 | actuator |
| 3044193 | Actuator, 12V, Normally Closed, High Flow, for use on VTA-28, KT(A)-38, and KTA-50 | actuator |
| 3052505 | Actuator High Flow-24V-For use on VTA-28 (VTA-1710), KTA-38 (KT(A)-2300) and KTA-50 (KTA-3067) engines | actuator |
| 3052508 | Actuator High Flow-12V-For use on VTA-28 (VTA-1710), KTA-38 (KT(A)-2300) and KTA-50 (KTA-3067) | actuator |
| 009492 | Angle, Air Cleaner MIG | angle |
| 052045 | Lead Acid Battery - Dry (Export) | battery |
| ES-1680-1 | BATTERY CONNECTIONS | battery_connections |
| 011261 | Battery Lead (-VE) | battery_lead |
| 011262 | Battery Lead (+VE) | battery_lead |
| 011270 | Battery Lead, +ve | battery_lead |
| 035095 | Clamp Bolt | bolt |
| 427560 | Battery Boot, Single Outlet | boot |
| 427561 | Battery Boot, Copper Link | boot |
| 035090 | Battery Clamp | clamp |
| 049001 | Clip | clip |
| 010156 | Heater Hose Connection | connection |
| 010159 | 1” NPT x 16 I/D Hose Connector | connector |
| 3044195 | Control, 24V, Normally Closed, Low Flow, for use on VTA-28, KTA-38 and KTA-50 | control |
| 3044198 | Control, 12V, Normally Closed, Low Flow, for use on VTA-28, KTA-38 and KTA-50 | control |
| 3044201 | Control, 24V, Normally Open, Low Flow, for use on VTA-28 and KTA-38 | control |
| 3044204 | Control, 12V, Normally Open, Low Flow, for use on VTA-28 and KTA-38 | control |
| 0300-4623-26 | DFJD (600V) | current_transformer |
| 0300-4623-51 | DFJD BR (0-480V) | current_transformer |
| ES-1214.2 | FUEL TRANSFER PUMP - ELECTRIC | fuel_filter |
| FF202 | Fuel, Spin-On | fuel_filter |
| FS1216 | Fuel/Water Sep Spin-On | fuel_filter |
| M-4352580 | Upper Gasket Set | gasket |
| CS-1075-1 | HEAT EXCHANGER | heat_exchanger |
| 009515 | Heat Shield, Hose Insulation | heat_shield |
| 009762 | Induction Tube, 6” x 350 mm | induction_tube |
| 3822575 | Injector and valve adjustment kit | injector |
| 009581 | Air Cleaner Kit (Normal Duty) – 03SC058 | kit |
| 011281 | STR/STR - STR/Earth Lead (-VE) | lead |
| 011250 | Battery Link | link |
| 009577 | Mounting Plate | mounting_plate |
| 050861 | 11/4’’ NPT x 1’’ NPT Hex Nipple | nipple |
| 715250 | M8 Steel Wing Nuts | nut |
| 3096680 | Piston STC 13.8:1 Ratio | other_service |
| 3096681 | Piston KT Series 15.5:1 Ratio | other_service |
| 3096682 | Piston KTA Series 14.5:1 Ratio | other_service |
| 3096683 | Piston 13.5:1 Ratio | other_service |
| 3096684 | Piston KTA 15.7:1 Ratio | other_service |
| 3096685 | Piston STC 13.9:1 Ratio | other_service |
| 332-2634 | Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper) | other_service |
| 3628731 | Piston STC Kit | other_service |
| 3630913 | Piston KTA-50-G7 | other_service |
| 3631241 | Piston Kit STC 13.9:1 Ratio | other_service |
| 3631242 | Piston Kit 13.5:1 Ratio | other_service |
| 3631243 | Piston Kit KTA 15.7:1 Ratio | other_service |
| 3631244 | Piston Kit KTA Series 14.5:1 Ratio | other_service |
| 3631245 | Piston Kit KT Series 15.5:1 Ratio | other_service |
| 3631246 | Piston Kit STC 13.8:1 Ratio | other_service |
| 3803530 | Piston Assembly STC | other_service |
| 3804747 | Piston Kit KTA-50-G7 | other_service |
| 3804885 | Piston KTA-50-G8/G9 | other_service |
| 4089847 | Piston Kit GTA38/19 | other_service |
| 4090013 | Piston Kit KTA-38-M2 | other_service |
| 4090029 | Piston Kit QSK19CE | other_service |
| 4090181 | Piston GTA38/19 | other_service |
| 4097889 | Piston KTA-38-M2 | other_service |
| 4910463 | Piston QSK19R/M | other_service |
| 4910465 | Piston QSK Series | other_service |
| 4916177 | Piston GTA/GQSK19 | other_service |
| 4918058 | Piston QSK19CE | other_service |
| 4922319 | Piston QSK19C | other_service |
| 4955233 | Piston Kit QSK19R/M | other_service |
| 4955235 | Piston Kit QSK Series | other_service |
| 4955236 | Piston Kit QSK19C | other_service |
| 4955238 | Piston Kit GTA/GQSK19 | other_service |
| 518-0548-24 | Clamp, Retainer Begin December 1996 Production (Mounted On Top And Side Of Control Box Wrapper On The Side Towards The Control Box Cover) | other_service |
| 518-0548-42 | Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper) | other_service |
| 960-0104 | other_service | |
| 960-0142 | other_service | |
| 960-0263 | other_service | |
| 960-0606 | other_service | |
| 960-0609 | other_service | |
| CS-1367-2 | COOLANT HEATER | other_service |
| M-3096682 | Piston | other_service |
| M-3631244 | Piston Kit - Aluminum | other_service |
| 05050151 | Reducer, 1/2” x 1/8” NPT | reducer |
| 706187 | M4 x 12 mm Steel Cheesehead Screw | screw |
| 01930388 | Sender, Oil Temperature | sensor |
| 960-0504 | PCC Control Service Manual | service_manual |
| 960-0507 | Detector Control Service Manual | service_manual |
| 009578 | Side Support LH | side_support |
| 009579 | Side Support RH | side_support |
| 010167 | Heater Support | support |
| 009580 | Support Plate | support_plate |
| 03090269 | Switch, Low Engine Temperature (LET) | switch |
| 418520 | Battery Terminal, On Line | terminal |
| 010112 | Thermostat | thermostat |
| 035105 | Battery Tray | tray |
| 716007 | M4 Plain Washer, Thick, Steel, Form A | washer |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
The Cummins/Onan KTA38-G18 has a displacement of 37.8 liters with 12 cylinders.
The Cummins/Onan KTA38-G18 powers 2 generator set(s), including Cummins/Onan K38 Series, Cummins/Onan K38 Series C1010 D5 PC.