Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Heavy-duty | — | |||
| Oil filter | — | 250 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Mitsubishi S4SDTG is a 3.33 L natural engine. It powers generator sets from Mitsubishi, including the MDG and MDG40.
Also known as: Mitsubishi S4SDTG
Part of the Mitsubishi S4S engine family — 12 variants share parts & fitment.
| Displacement | 3.33 L |
|---|---|
| Aspiration | Natural |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Heavy-duty | — | |||
| Oil filter | — | 250 hr |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| 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 | Oil pan common gasket | 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 | Service part / kit |
| 330171721 | Plug | Service part / kit |
| 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.
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 Mitsubishi S4SDTG has a displacement of 3.33 liters.
The Mitsubishi S4SDTG powers 2 generator set(s), including Mitsubishi MDG, Mitsubishi MDG40.