HomeEnginesMitsubishi S4Q2-61MOG

Mitsubishi S4Q2-61MOG Engine

The Mitsubishi S4Q2-61MOG is a 2.5 L 4-cylinder natural engine rated at 1800 rpm. It powers generator sets from Mitsubishi, including the RML 23, RMS 23 and RMW 22.

Also known as: Mitsubishi S4Q2-61MOG

Part of the Mitsubishi S4Q2 engine family — 8 variants share parts & fitment.

2.505 L
Displacement
4
Cylinders
1800 rpm
Rated speed

Engine specifications

Displacement2.505 L
Cylinders4
AspirationNatural
Rated speed1800 rpm

Parts cataloged across the Mitsubishi S4Q2 family

25
Part #DescriptionCategory
30801032101NEDusty air filter assemblyair_filter
330170365Beltbelt
330910098Coolant GENCOOL (20L)fluid
330910115Oil GENLUB TDX 20Lfluid
330170614Water pump gasketgasket
330170777Exhaust gasketgasket
330170780Gasketgasket
330170844Gasketgasket
330171211Gasketgasket
330171571Gasketgasket
330171575Gasketgasket
330171484Durithose
330171692Durithose
330171942Lower Durithose
330171943Upper radiator Durithose
330170272Oil filteroil_filter
AEHQ5682-03304C CR Mini Hydraulic Excavatorother_service
AEHQ5683305C CR Mini Hydraulic Excavatorother_service
AEHQ5683-03305C CR Mini Hydraulic Excavatorother_service
AEHQ6016904H Compact Wheel Loaderother_service
31810015101NKOil drain pump assemblypump
330170513Water pumppump
330170581Oil pumppump
31101077801NKCoolant temp. and oil pressure sender assemblysensor
330170377Thermostatthermostat

Parts cataloged across all variants of this engine family — verify the exact part fits your specific variant and serial number before ordering.

Also used in

5
  • Caterpillar 304C — Excavator Tracked
  • Caterpillar 305C — Excavator Tracked
  • Orenstein & Koppel 1.48 — Construction Equipment
  • Terex HR18 — Excavator Compact
  • 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 displacement of the Mitsubishi S4Q2-61MOG?

The Mitsubishi S4Q2-61MOG has a displacement of 2.505 liters with 4 cylinders.

Which generators use the Mitsubishi S4Q2-61MOG engine?

The Mitsubishi S4Q2-61MOG powers 3 generator set(s), including Mitsubishi RML 23, Mitsubishi RMS 23, Mitsubishi RMW 22.