The Cummins/Onan KTA38-G5 is a 38 L 12-cylinder turbo charged and after-cooled engine rated at 1500 rpm, producing up to 660 kW. It powers generator sets from Cummins/Onan, including the C1000 D5, C1010 D5 P, C1100 D5B and K38 Series. It holds 155 L (40.9 gal) of oil and 260 L (68.7 gal) of coolant.
Also known as: Cummins KTA38-G5
Part of the Cummins/Onan KTA38 engine family — 17 variants share parts & fitment.
| Oil capacity | 155.0 L |
|---|---|
| Coolant capacity | 260.0 L |
| Displacement | 38.0 L |
| Cylinders | 12 |
| Aspiration | turbo Charged and after-cooled |
| Rated speed | 1500 rpm |
| Gross power | 660 kW |
How to read your Cummins/Onan engine serial & model number →
| Part # | Description | Category |
|---|---|---|
| UC224C | Alternator Model | Alternator |
| UC274F | Alternator Model | Alternator |
| 052045 | Lead Acid Battery - Dry (Export) | Battery |
| 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 |
| 0300-4623-26 | DFJD (600V) | Current transformer |
| 0300-4623-51 | DFJD BR (0-480V) | Current transformer |
| 149-1689 | Element (Dual Fuel/Water Separator) | Fuel filter |
| FF202 | Fuel, Spin-On | Fuel filter |
| FS1216 | Fuel/Water Sep Spin-On | Fuel filter |
| 155-0675 | Gasket (Water Outlet) | Gasket |
| 155-1030 | Gasket (Exhaust Header) | Gasket |
| 415-0486 | Gasket (Fuel Tank - Overhead/Underground Supply) | Gasket |
| 526-0063 | Gasket (Fuel Tank) | Gasket |
| M-4352580 | Upper Gasket Set | Gasket |
| 503-0359 | Hose (1-5/8" I.D. x 3 ' )' | Hose |
| 503-0788 | Hose (Cooling System - Standpipe) | Hose |
| 518-0548-24 | Clamp, Hose | Hose |
| 3822575 | Injector and valve adjustment kit | Injector |
| 011281 | STR/STR - STR/Earth Lead (-VE) | Lead |
| 011250 | Battery Link | Link |
| 309-0243 | Valve, Control - Temperature Regulating | Marsh valve |
| 050861 | 11/4’’ NPT x 1’’ NPT Hex Nipple | Nipple |
| 715250 | M8 Steel Wing Nuts | Nut |
| 151-0399 | Controller (Electric Governor) | Service part / kit |
| 151-0419 | Actuator (Electric Governor) | Service part / kit |
| 159-0020 | Cap, Tank | Service part / kit |
| 307-0839 | Valve, Solenoid | Service part / kit |
| 307-1861 | Valve, Solenoid (Overhead Supply) | Service part / kit |
| 309-0407 | Valve, Float (Overhead Supply) | Service part / kit |
| 3096680 | Piston STC 13.8:1 Ratio | Service part / kit |
| 3096681 | Piston KT Series 15.5:1 Ratio | Service part / kit |
| 3096682 | Piston KTA Series 14.5:1 Ratio | Service part / kit |
| 3096683 | Piston 13.5:1 Ratio | Service part / kit |
| 3096684 | Piston KTA 15.7:1 Ratio | Service part / kit |
| 3096685 | Piston STC 13.9:1 Ratio | Service part / kit |
| 331-0027 | Clamp, Junction Box - Spec A through G | Service part / kit |
| 332-2634 | Clamp, Hose | Service part / kit |
| 3628731 | Piston STC Kit | Service part / kit |
| 3630913 | Piston KTA-50-G7 | Service part / kit |
| 3631241 | Piston Kit STC 13.9:1 Ratio | Service part / kit |
| 3631242 | Piston Kit 13.5:1 Ratio | Service part / kit |
| 3631243 | Piston Kit KTA 15.7:1 Ratio | Service part / kit |
| 3631244 | Piston Kit KTA Series 14.5:1 Ratio | Service part / kit |
| 3631245 | Piston Kit KT Series 15.5:1 Ratio | Service part / kit |
| 3631246 | Piston Kit STC 13.8:1 Ratio | Service part / kit |
| 3803530 | Piston Assembly STC | Service part / kit |
| 3804747 | Piston Kit KTA-50-G7 | Service part / kit |
| 3804885 | Piston KTA-50-G8/G9 | Service part / kit |
| 4089847 | Piston Kit GTA38/19 | Service part / kit |
| 4090013 | Piston Kit KTA-38-M2 | Service part / kit |
| 4090029 | Piston Kit QSK19CE | Service part / kit |
| 4090181 | Piston GTA38/19 | Service part / kit |
| 4097889 | Piston KTA-38-M2 | Service part / kit |
| 4910463 | Piston QSK19R/M | Service part / kit |
| 4910465 | Piston QSK Series | Service part / kit |
| 4916177 | Piston GTA/GQSK19 | Service part / kit |
| 4918058 | Piston QSK19CE | Service part / kit |
| 4922319 | Piston QSK19C | Service part / kit |
| 4955233 | Piston Kit QSK19R/M | Service part / kit |
| 4955235 | Piston Kit QSK Series | Service part / kit |
| 4955236 | Piston Kit QSK19C | Service part / kit |
| 4955238 | Piston Kit GTA/GQSK19 | Service part / kit |
| 508-0018 | Washer, Insulating (1/4" ID) | Service part / kit |
| 518-0548-42 | Clamp, Retainer 4 Prior To December 1996 Production (Mounted On Top And Side Of Control Box Wrapper) | Service part / kit |
| M-3804747 | Piston Kit | Service part / kit |
| V2403-M-E3BG | Engine Model | Service part / kit |
| 05050151 | Reducer, 1/2” x 1/8” NPT | Reducer |
| 706187 | M4 x 12 mm Steel Cheesehead Screw | Screw |
| 01930388 | Sender, Oil Temperature | Sensor |
| 150-0717 | Switch Assembly, Overspeed | Sensor |
| 151-0411 | Pickup, Magnetic | Sensor |
| 960-0504 | PCC Control Service Manual | Service manual |
| 960-0507 | Detector Control Service Manual | Service manual |
| 010167 | Heater Support | Support |
| 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-G5 engine has an oil capacity of 155.0 liters.
The Cummins/Onan KTA38-G5 has a displacement of 38.0 liters with 12 cylinders.
The Cummins/Onan KTA38-G5 powers 4 generator set(s), including Cummins/Onan C1000 D5, Cummins/Onan C1010 D5 P, Cummins/Onan C1100 D5B, Cummins/Onan K38 Series.