Kohler KDI 2504TM Engine
The Kohler KDI 2504TM is a 3.25 L 4-cylinder engine rated at 1800 rpm. It powers generator sets from Kohler, including the KDI 2504 TM, KDI 2504 TM E.PACK 30 kVA, KDI 2504 TM E.PACK 32 kW and KDI 2504 TM E.PACK 36.9 kW.
Also known as: Kohler KDI 2504TM
Part of the Kohler KDI 2504TM engine family — 3 variants share parts & fitment.
Service parts for the KDI 2504TM
The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.
Air intake
1 requiredP600975Air filterfind
Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.
Engine specifications
| Displacement | 3.2482 L |
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| Cylinders | 4 |
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| Rated speed | 1800 rpm |
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Common problems
15- Warning YELLOW light turn on
Cause: Engine ECU has detect a malfunctions
Fix: Contact REHLKO authorised workshops - The engine does not start
Cause: Sulphated battery terminals corroded
Fix: Clean the battery terminals - RPM instability at idle speed
Cause: Clogged fuel pipes
Fix: Contact REHLKO authorised workshops - Poor quality fuel
Fix: Clean the tank and refuel with quality fuel - Numero dei giri al minimo basso
Cause: Clogged fuel pipes
Fix: Contact KOHLER authorised workshops - Low idle RPM
Cause: Clogged fuel pipes
Fix: Contact REHLKO authorised workshops - Intake or exhaust system clogged
Fix: Replace with a new fuse; if the problem persists, Contact REHLKO authorised workshops - High oil sump level
Fix: Replace the engine oil; if the problem persists, Contact REHLKO authorised workshops - Excessive fuel consumption
Cause: Clogged air filter
Fix: Replace with a new filter - Engine starts but stops
Cause: Inefficient electrical connections
Fix: Clean the electrical contacts; if the problem persists, Contact REHLKO authorised workshops - Engine overheats
Cause: Insufficient coolant level
Fix: Fill up to the level - Engine lost its initial performance
Cause: Clogged air filter
Fix: Replace with a new filter - Clogged radiator
Fix: Clean the radiator; if the problem persists, contact REHLKO authorised workshops - Clogged pipes
Fix: Contact REHLKO authorised workshops - Clogged fuel pipes
Fix: Contact REHLKO authorised workshops
Compiled from service & troubleshooting documentation across every generator set that uses the Kohler KDI 2504TM.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | external cartridge | | — | 1000 hr | |
| Fuel filter | | | — | 500 hr | |
| Oil filter | | | — | 250 hr | |
| Battery | | | — | 250 hr | |
| Belt | Check and setting alternator standard belt tension | | ED0024405540-S | 500 hr | Amazon eBay $504.60 |
| Coolant | interior radiator cleaning | | — | 1000 hr | |
| Coolant filter | | | — | | |
| Oil | | 11.5 lt. | — | 250 hr | |
| Spark plug | | | — | 2 hr | |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Service intervals
1| Item | Action | Hours | Months | Notes |
|---|
| oil | Change | 500 hr | | Minimum 500 hours oil change interval |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Recommended fluids
| Fluid | Grade | Standard | Ambient | Capacity | Notes |
|---|
| Fuel | No 1 Diesel (US) - ASTM D 975-09 B - Grade 1-D S 15 and No 2 Diesel (US) - ASTM D 975-09 B - Grade 2-D S 15, S 500 for mechanical models only | ASTM D 975-09 B | | | |
Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.
Aftermarket parts that fit this engine
3Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
Filters for this engine
- Air filter: Donaldson P600975 Donaldson P608533 Wix 49276 Wix 49275
Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.
Also used in
1- Merlo TF27.6 — Telehandler
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.
Common questions
What is the displacement of the Kohler KDI 2504TM?
The Kohler KDI 2504TM has a displacement of 3.2482 liters with 4 cylinders.
Which generators use the Kohler KDI 2504TM engine?
The Kohler KDI 2504TM powers 5 generator set(s), including Kohler KDI 2504 TM, Kohler KDI 2504 TM E.PACK 30 kVA, Kohler KDI 2504 TM E.PACK 32 kW, Kohler KDI 2504 TM E.PACK 36.9 kW, Kohler KDI 2504 TM E.PACK 40 kVA.
What air filter does the Kohler KDI 2504TM use?
The Kohler KDI 2504TM uses air filter part numbers Donaldson P600975, Donaldson P608533, Wix 49276.
How often should you change the oil in the Kohler KDI 2504TM?
The Kohler KDI 2504TM oil change interval is every 250 hours.
What is a common problem with the Kohler KDI 2504TM engine?
A commonly reported issue on generators using the Kohler KDI 2504TM is: Warning YELLOW light turn on. Cause: Engine ECU has detect a malfunctions. Fix: Contact REHLKO authorised workshops.