S4S Naturally aspirated
Standby / Prime power
- Output
- 23.5–33.5 kW
- Cylinders
- 4
- Bore × stroke
- 94 × 120 mm
- Displacement
- 3,331 cc
- Dry weight
- 245 kg
- Aspiration
- Naturally aspirated
- Combustion system
- Direct injection
4-cylinder naturally aspirated, direct-injection diesel – shares its bore, stroke and displacement with the turbocharged S4S-DT.
Generator output (kW, ISO 3046 gross)
50Hz (1500 min-1)26.0/30.923.5/28.0
60Hz (1800 min-1)33.531.7
Where two values are separated by "/", the source spec sheet gives both without stating what distinguishes them — shown as printed rather than guessed.
Parts for the S4S
Genuine MHI parts stocked in Wangara WA, with a regional supply hub in Singapore.
Figures on this page are indicative and subject to change without notice — confirm the exact rating and configuration with OPS before specifying.
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