The Mitsubishi S4S-DT is a 3.33 L 4-cylinder turbocharged engine rated at 1500 rpm, producing up to 41.9 kW. It powers generator sets from SDMO, including the T44K. It holds 10 L (2.6 gal) of oil and 9.5 L (2.5 gal) of coolant.
Service parts for the S4S-DT
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.
Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|
| Air filter | | | — | | |
| Fuel filter | | | 330560536 | | Amazon eBay |
| Oil filter | | | — | | |
| Battery | | | — | | |
| Belt | | | — | | |
| Coolant | | 9.5 L | — | | |
| Oil | | 10.0 L | — | | |
| Spark plug | | | — | | |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
Parts cataloged across the Mitsubishi S4S family
28| Part # | Description | Category |
|---|
| 30801093801NK | Dusty air filter assembly | air_filter |
| 330171694 | Fan belt | belt |
| 330910098 | Coolant GENCOOL (20L) | fluid |
| 330910115 | Oil GENLUB TDX 20L | fluid |
| 32413-03200 | Common gasket (oil pan) | gasket |
| 32491-05100 | Three Bond 1207C (liquid gasket) | gasket |
| 330170438 | Water pump gasket | gasket |
| 330170458 | Exhaust gasket | gasket |
| 330171211 | Gasket | gasket |
| 330171528 | Gasket | gasket |
| 330171591 | Gasket | gasket |
| 330171670 | Gasket | gasket |
| 330171736 | Gasket | gasket |
| 330172339 | Cover gasket | gasket |
| 330171462 | Bottom radiator hose | hose |
| 330171463 | Upper radiator Durit | hose |
| 330171592 | Durit | hose |
| 330171675 | Durit | hose |
| 330172341 | Durit | hose |
| 330171693 | Oil filter | oil_filter |
| 330171425 | Radiator cap | other_service |
| 330171721 | Plug | other_service |
| 31810066301NK | Oil drain pump flexible assembly | pump |
| 330170721 | Oil pump | pump |
| 330172276 | Water pump | pump |
| 330171604 | O ring | seal |
| 31101084601NK | Coolant temp. and oil pressure sender assembly | sensor |
| 330170377 | Thermostat | thermostat |
Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.
Common questions
What is the oil capacity of the Mitsubishi S4S-DT?
The Mitsubishi S4S-DT engine has an oil capacity of 10.0 liters.
What is the displacement of the Mitsubishi S4S-DT?
The Mitsubishi S4S-DT has a displacement of 3.33 liters with 4 cylinders.
Which generators use the Mitsubishi S4S-DT engine?
The Mitsubishi S4S-DT powers 1 generator set(s), including SDMO T44K.
What fuel filter does the Mitsubishi S4S-DT use?
The Mitsubishi S4S-DT uses fuel filter part numbers Sdmo 330560536, Mitsubishi 3446200300, Donaldson P502143.