The Cummins/Onan KTA38-G9 is a 37.8 L 12-cylinder turbocharged, aftercooled engine rated at 1500 rpm, producing up to 1089 kW. It powers generator sets from Cummins/Onan, including the C1250 D5A and KTA38. It holds 114 L (30.1 gal) of oil.
Part of the Cummins/Onan KTA38 engine family — 17 variants share parts & fitment.
| Oil capacity | 114.0 L |
|---|---|
| Displacement | 37.8 L |
| Cylinders | 12 |
| Aspiration | turbocharged, aftercooled |
| Rated speed | 1500 rpm |
| Gross power | 1089 kW |
| Part # | Description | Category |
|---|---|---|
| 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 |
| ES-1561 | CONTROL HEATER | control_heater |
| ES-1214.2 | FUEL TRANSFER PUMP - ELECTRIC | fuel_filter |
| FS-1776 | FUEL FILTERS | fuel_filters |
| FS-1692 | FUEL SOLENOID VALVE LOCATION | fuel_solenoid_valve_location |
| 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 |
| 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 |
| CS-1375 | REMOTE RADIATOR | other_service |
| LS-1180 | PRIMING TURBOCHARGER | priming_turbocharger |
| 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-G9 engine has an oil capacity of 114.0 liters.
The Cummins/Onan KTA38-G9 has a displacement of 37.8 liters with 12 cylinders.
The Cummins/Onan KTA38-G9 powers 2 generator set(s), including Cummins/Onan C1250 D5A, Cummins/Onan KTA38.