Allison Off Highway M / MG Series

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.

Allison Transmission logo
Off Highway Allison Twin Disc Powershift Transmission Model TRT2421

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.

Off Highway Allison Twin Disc Twin Turbine Series Transmission

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!


Contact Us

  • This field is for validation purposes and should be left unchanged.