The Kohler KDI 3404 TCR is a 3.4 L 4-cylinder turbocharged, charge air cooled engine rated at 1800 rpm, producing up to 55.4 kW. It powers generator sets from Kohler, Lombardini and Valdinoci, including the 48REOZK4, 55REOZT4 and Power Pack KDI 3404 TCR. It holds 15.6 L (4.1 gal) of oil and 12 L (3.2 gal) of coolant.
Part of the Kohler KDI 3404 engine family — 2 variants share parts & fitment.
| Oil capacity | 15.6 L |
|---|---|
| Coolant capacity | 12.0 L |
| Displacement | 3.4 L |
| Cylinders | 4 |
| Aspiration | Turbocharged, Charge Air Cooled |
| Rated speed | 1800 rpm |
| Gross power | 55 kW |
Shared across brands: Kohler, Lombardini, Valdinoci
| Part # | Description | Category |
|---|---|---|
| 324586 | Battery, wet charged (12V, 950 CCA) | battery |
| GM61432 | Strap, Poly Battery | battery |
| X-545-252 | Cable, Battery (No.0 x 8”) Blk | battery |
| X-545-266 | Cable, battery (No.0 x 30”) red+ | battery |
| ED0053030050 | Fuel filter cartridge | oil_filter |
| 257046 | Guard, generator fan | other_service |
| 257442 | Clip, speed | other_service |
| ED0014603650-S | Six Nicks SN8 | other_service |
| GM71006 | Insulation, Exhaust Tube | other_service |
| GM88388 | Switch, Battery Disconnect | other_service |
| GM91129 | Fitting, Oil Pressure, 45kVA | other_service |
| GM93849-1 | Engine, KDI3404TCR | other_service |
| GM93865 | Tube, Flex Exhaust | other_service |
| GM94942 | Vibromount | other_service |
| X-217-12 | Pipe, Nipple (1/8” npt x 2.00”) | other_service |
| X-352-63 | Stud, 3/8-16 x 4 in. | other_service |
| X-400-132 | Spacer, 0.406 ID x 0.625 OD x 2.531 in. | other_service |
| X-555-2 | Elbow, street (90 deg x 1/8”nptf) | other_service |
| X-6210-9 | Nut, flange spiralock, 3/8-16 | other_service |
| X-801-3 | Washer, hardened, 0.406 ID x 0.812 OD | other_service |
| 343473 | Sender, oil pressure | sensor |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
The Kohler KDI 3404 TCR engine has an oil capacity of 15.6 liters.
The Kohler KDI 3404 TCR has a displacement of 3.4 liters with 4 cylinders.
The Kohler KDI 3404 TCR powers 4 generator set(s), including Kohler 48REOZK4, Kohler 55REOZT4, Lombardini KDI 3404 TCR, Valdinoci Power Pack KDI 3404 TCR.