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The Allison M and MH marine transmissions were exclusively manufactured for Detroit Diesel marine engines and come in the following models: M15, M15L, M15R, M20, M20L, M20R, MH20, MH20L, MH20R, MH45, MH45L, MH45R. For the curious, MH 20 R stands for Allison MH marine transmission with a 2 to 1 ratio that is right hand rotation. You will find these marine transmissions in  fishing, scuba diving, coast guard, and other work and pleasure boat applications around the globe. 


Detroit Diesel/Allison part # - 5101603

Outside Diameter: 14.3 in

Inside Diameter: 7.12 in

Total Thickness: .211 in

Teeth: 0

Type: wet


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Excelent: I would definetly buy.

Forward Clutch Plate for Allison Marine Transmissions M and MH - 5101603

  • Brand:
  • Allison Marine
  • Product Code:
  • HDK-5101603
  • Availability:
  • 1000
  • Price:
  • $425.00

Tags: 5101603, Allison, M, MH, Marine, Transmission, forward, clutch, plate