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Home›Engines›Mitsubishi S4Q2.Y262SD

Mitsubishi S4Q2.Y262SD Engine

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

2.5 L
Displacement
4
Cylinders
1800 rpm
Rated speed
28 kW
Gross power
On this pageService partsSpecsGenerator setsMaintenanceFilter cross-referenceFAQ

Service parts for the S4Q2.Y262SD

The cheapest captured merchant offer per filter — see the full cross-reference below for every OEM/aftermarket option.

Oil system

1 required
MD162326MOil filter$28.08eBay

Prices captured from merchant listings; some links are affiliate links. Verify against your serial number before ordering.

Engine specifications

Oil capacity6.5 L
Coolant capacity5.5 L
Displacement2.5 L
Cylinders4
AspirationAthmo
Rated speed1800 rpm
Gross power28 kW

Maintenance schedule

ItemSpecCapacityPart #Interval
Oil filterOil Pressure low idleMD162326M 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.

Aftermarket parts that fit this engine

8
MM435-94101 FridayParts $56.99 32C65-04010 FridayParts $1259.99 32C65-04011 FridayParts $1259.99 32C65-04040 FridayParts $1838.00 092000-4550 FridayParts $1838.00 MM514045 FridayParts $89.99 32c65 FP-XP-0013171

Parts 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

  • Oil filter: Mitsubishi MD162326M Donaldson P502051

Cross-referenced via Donaldson + OEM/engine-maker interchange — options to verify against your serial number, not confirmed for every exact variant.

Also used in

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  • Westerbeke 44B FOUR — Engine

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 oil capacity of the Mitsubishi S4Q2.Y262SD?

The Mitsubishi S4Q2.Y262SD engine has an oil capacity of 6.5 liters.

What is the displacement of the Mitsubishi S4Q2.Y262SD?

The Mitsubishi S4Q2.Y262SD has a displacement of 2.5 liters with 4 cylinders.

Which generators use the Mitsubishi S4Q2.Y262SD engine?

The Mitsubishi S4Q2.Y262SD powers 2 generator set(s), including SDMO T20UC, SDMO TM20UC.

What oil filter does the Mitsubishi S4Q2.Y262SD use?

The Mitsubishi S4Q2.Y262SD uses oil filter part numbers Mitsubishi MD162326M, Donaldson P502051.