Catalyst Powertrain Complete Service for Your Allison Marine Gear Transmission
Catalyst Powertrain is an Allison Transmission authorized service center. We provide reman units, parts, repair, and maintenance for all Allison Off Highway Transmissions.


About the Allison Marine Gear (MG) Series Transmission
The Allison marine transmission includes one constant mesh, straight spur gear planetary assembly that enables the transmission to rotate in forward when forward clutch is engaged and reverse when reverse clutch is engaged.
The marine gears were designed for Personal Pleasure Cruising Crafts to Heavy Duty Work/Crew Boats.

Features of the Allison Marine Gear (MG) Series Transmission
- Horsepower range 230HP – 720 HP
Multiple Gear Ratios
Clockwise or Counter Clockwise Rotation
Intergral Sump
Models: M10A, M10B, M11R, M15R, M17L, M17R, M20L, M20R, MH20L, MH20R, MH25L, MH25R, MH30L, MH30R, MH37L, MH37R, MH45L, MH45R

For more information regarding your Allison M / MG Series transmission, please contact us today!
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