Maintenance schedule
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Oil Pressure low idle | MD162326M | Amazon eBay $28.08 |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
The Mitsubishi S4Q2.Y262SD is a 2.5 L 4-cylinder athmo engine rated at 1800 rpm, producing up to 28.71 kW. It powers generator sets from SDMO, including the T20UC and TM20UC. It holds 6.5 L (1.7 gal) of oil and 5.5 L (1.5 gal) of coolant.
Also known as: MITSUBISHI S4Q2.Y262SD
Part of the Mitsubishi S4Q2 engine family — 10 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 | 6.5 L |
|---|---|
| Coolant capacity | 5.5 L |
| Displacement | 2.5 L |
| Cylinders | 4 |
| Aspiration | Athmo |
| Rated speed | 1800 rpm |
| Gross power | 28 kW |
| Item | Spec | Capacity | Part # | Interval | |
|---|---|---|---|---|---|
| Oil filter | Oil Pressure low idle | MD162326M | Amazon eBay $28.08 |
Pooled from every document that names this exact engine — confirm the interval and part number against your unit's serial number.
| Part # | Description | Category |
|---|---|---|
| 30801032101NE | Dusty air filter assembly | Air filter |
| 330170365 | Belt | Belt |
| 330910098 | Coolant GENCOOL (20L) | Fluid |
| 330910115 | Oil GENLUB TDX 20L | Fluid |
| 330170614 | Water pump gasket | Gasket |
| 330170777 | Exhaust gasket | Gasket |
| 330170780 | Gasket | Gasket |
| 330170844 | Gasket | Gasket |
| 330171211 | Gasket | Gasket |
| 330171571 | Gasket | Gasket |
| 330171575 | Gasket | Gasket |
| 330171484 | Durit | Hose |
| 330171692 | Durit | Hose |
| 330171942 | Lower Durit | Hose |
| 330171943 | Upper radiator Durit | Hose |
| 330170272 | Oil filter | Oil filter |
| AEHQ5682-03 | 304C CR Mini Hydraulic Excavator | Service part / kit |
| AEHQ5683 | 305C CR Mini Hydraulic Excavator | Service part / kit |
| AEHQ5683-03 | 305C CR Mini Hydraulic Excavator | Service part / kit |
| AEHQ6016 | 904H Compact Wheel Loader | Service part / kit |
| 31810015101NK | Oil drain pump assembly | Pump |
| 330170513 | Water pump | Pump |
| 330170581 | Oil pump | Pump |
| 31101077801NK | 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.
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 Mitsubishi S4Q2.Y262SD engine has an oil capacity of 6.5 liters.
The Mitsubishi S4Q2.Y262SD has a displacement of 2.5 liters with 4 cylinders.
The Mitsubishi S4Q2.Y262SD powers 2 generator set(s), including SDMO T20UC, SDMO TM20UC.
The Mitsubishi S4Q2.Y262SD uses oil filter part numbers Mitsubishi MD162326M, Donaldson P502051, Baldwin B161-S.