The Kohler KDI 2504 TCR 2.5 L is a 2.5 L 4-cylinder turbocharged engine rated at 1800 rpm, producing up to 47 kW. It powers generator sets from Kohler, including the 40 REOZK4. It holds 11.2 L (3.0 gal) of oil and 17.2 L (4.5 gal) of coolant.
Also known as: Kohler Diesel KDI 2504 TCR 2.5 L
Part of the Kohler KDI2504 engine family — 15 variants share parts & fitment.
The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.
Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.
| Oil capacity | 11.2 L |
|---|---|
| Coolant capacity | 17.2 L |
| Displacement | 2.5 L |
| Cylinders | 4 |
| Aspiration | Turbocharged |
| Rated speed | 1800 rpm |
| Gross power | 47 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dry | 002175339000 | Amazon eBay $40.50 | ||
| Fuel filter | Primary 5 Microns @ 98% Efficiency | — | |||
| Oil filter | Cartridge | — | |||
| Oil | API CJ-4 or ACEA E6--E9 | 11.2 L | — |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| A-226955 | Air cleaner assembly | Air filter |
| GM16944 | Element, air cleaner | Air filter |
| GM66601 | Element, Inner | Air filter |
| 8972824032 | Acid charge Pb-Ca maintenance free, 12V - 1100 CCA | Battery |
| 8972824033 | Acid charge Pb-Ca maintenance free, 12V - 1100 CCA | Battery |
| ED0082051350-S | COV.HEAD GASK.-OR SET 2504 TCR | Gasket |
| ED0082051370-S | COV.HEAD GASK.-OR SET 2504 M | Gasket |
| GM22310 | Hose, Reducer | Hose |
| GM86224 | Hose, Air Intake (Item 5) | Hose |
| GM92268 | Bracket, air cleaner Mtg. | Mounting |
| GM95611 | Bracket, Air Cleaner Mtg. | Mounting |
| ED0053029490 | 2.5 Blue smoke | Service part / kit |
| M125A-08-80 | Washer, Plain 8.4 ID x 16.0 OD | Service part / kit |
| 273377 | Gauge, restriction | Sensor |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
Other equipment known to use this engine, via filter-application cross-reference — useful for sourcing parts even when your exact machine isn't listed elsewhere on this page.
The Kohler KDI 2504 TCR 2.5 L engine has an oil capacity of 11.2 liters.
The Kohler KDI 2504 TCR 2.5 L has a displacement of 2.5 liters with 4 cylinders.
The Kohler KDI 2504 TCR 2.5 L powers 1 generator set(s), including Kohler 40 REOZK4.
The Kohler KDI 2504 TCR 2.5 L uses air filter part numbers Kohler 002175339000, Donaldson P828889, Wix 46562.