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Mitsubishi S4S Generator Set

The Mitsubishi S4S is a 33.5 kW standby generator set.

33 kW
Standby
4
Document types

Specifications

Standby power33 kW

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filterAir cleaner element find
Fuel filterFuel filter find
Oil filterOil filter element50 hr find
BeltV-belt500 hr find
CoolantLong Life Coolant (LLC)1000 hr
Coolant filter find
OilEngine oil - SAE/API grade per temperature50 hr

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Common questions

What is the power rating of the Mitsubishi S4S?

The Mitsubishi S4S is rated 33 kW standby.

Parts

10model family
Part #DescriptionQtySystem
30691-02100Compression gageCompression gage buy
30691-04500Valve spring pusherValve spring pusher buy
31391-12900Piston ring pliersPiston ring pliers buy
33391-02100Special tool gage adapterSpecial tool buy
M2TS5071Starter (24 V-3.2 kW)Starter buy
M31T67671Starter (24 V-3.2 kW)Starter buy
M8T60373Starter (24 V-3.2 kW)Starter sinocmp $319.00
M8T75171Starter (24 V-3.2 kW)Starter FridayParts $156.00
34491-00200Piston installer1Service part / kit buy
58309-73100Turning socketService part / kit buy

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Engine specSpec sheetOwner's manualService manual