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Mitsubishi S12R 1350HP

S12R Engine-1

Mitsubishi Marine Engine

S12R
Tier 3
Power
1350 HP
@ 1600 & 1800 RPM
Configuration
V12
Turbocharged, aftercooled
View Spec Sheet Contact Us

From Rebuild Risk to Reliable Power: The John Austin Repower

Case Study

M/V JOHN AUSTIN

Maritime Partners | Pushboat Repower
Previous Engine
QSK38
1300 HP
@ 1800 RPM
New Engine
S12R-Y3
1260 HP
@ 1600 RPM
 
Modifications
Grid Coolers 14 in Exhaust Air Inlet System Engine Mounts Cooling Line Adjustments
Gearbox Retained
Reintjes WAF 665
Result
Smooth repower with fewer unknowns and greater operational confidence.
M/V John Austin Repower Mitsubishi S12R
Existing systems including electronic controls, Racor filtration, fuel supply, and the air start system remained fully compatible with the new engine. The installation required no custom rework, introduced no unexpected issues, and came together with limited yard time and a clearly defined scope.

“At 28,000 hours, it came down to a full overhaul or a repower. We chose the S12R. It meant less downtime, more value over the long haul, and confidence that Laborde’s team would be there with the right service support.”

Austin Sperry

Co-Founder & President, Maritime Partners

START YOUR REPOWER WITH CONFIDENCE

Your Partner in Marine Power

At Laborde Products, we specialize in powering commercial marine vessels with reliable, low-maintenance Mitsubishi engines. Whether you’re repowering or building new, our team is here to guide you every step of the way.

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