The Mitsubishi S4S-Y3DT61SD is a 3.33 L 4-cylinder turbo engine rated at 1800 rpm, producing up to 43.9 kW. It powers generator sets from Kohler, including the 40REOZT. It holds 10 L (2.6 gal) of oil and 9.5 L (2.5 gal) of coolant.
Also known as: Mitsubishi S4S-Y3DT61SD
Part of the Mitsubishi S4S engine family — 8 variants share parts & fitment.
| Oil capacity | 10.0 L |
|---|---|
| Coolant capacity | 9.5 L |
| Displacement | 3.33 L |
| Cylinders | 4 |
| Aspiration | Turbo |
| Rated speed | 1800 rpm |
| Gross power | 43 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Air filter | Dusty air filter assembly | 30801093801NK | Amazon eBay | ||
| Oil filter | Oil filter | 330171693 | Amazon eBay | ||
| Belt | Fan belt | 330171694 | Amazon eBay | ||
| Coolant | GENCOOL | 9.5 L | 330910098 | 2 hr | Amazon eBay |
| Oil | GENLUB TDX | 10.0 L | 330910115 | Amazon eBay |
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 | 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.
Parts listed by aftermarket suppliers as fitting this engine — leads compiled from supplier catalogs; verify the exact part for your serial number.
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 S4S-Y3DT61SD engine has an oil capacity of 10.0 liters.
The Mitsubishi S4S-Y3DT61SD has a displacement of 3.33 liters with 4 cylinders.
The Mitsubishi S4S-Y3DT61SD powers 1 generator set(s), including Kohler 40REOZT.