Engines · M series
S6M3H Inline-6
Propulsion
- Applications
- Propulsion
- Output
- 258–292 kW
- Output
- 346–392 bhp
- Displacement
- 7.545 L
- Cylinders
- 6
- Configuration
- Inline-6
- Bore × stroke
- 108.9 × 135 mm
- Dry weight
- 795 kg
- Dimensions (L×W×H)
- 1835 × 1024 × 999 mm
- EIAPP
- IMO II Compliant
Compact six-cylinder high-speed diesel, the smallest engine in MHI’s current marine propulsion line-up. Covers propulsion duty only.
Full ratings by duty
Rating codes
- HDHeavy Duty
- Up to 83% load, full load for 8 hrs per 24 hrs, under 6,000 hrs/year. Working, fishing, tug and ferry boats, passenger vessels.
- MDMedium Duty
- Up to 75% load, full load for 1 hr per 6 hrs, under 4,000 hrs/year. Pleasure and patrol boats, high-performance vessels.
Parts for the S6M3H
Genuine MHI parts stocked in Wangara WA, with a regional supply hub in Singapore.
Pair the S6M3H with Smart Cruising Assist for real-time engine monitoring, fuel tracking and maintenance alerts.
Figures on this page are indicative and subject to change without notice — confirm the exact rating and configuration with OPS before specifying.
Ready to spec the S6M3H?
Send your application details and we'll confirm the right variant and rating for your vessel.