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PRM 125 Gearbox

Simple mechanical operation, lightweight, compact & rugged

New for 2016, the PRM 125 replaces the PRM 120 gearbox.

The PRM 125 gearbox is designed for use in pleasure craft where a simple lightweight transmission is required.
The cone clutches for both ahead and astern are mechanically operated and require no adjustment.
The gearbox is purposely built to operate with standard rotation engines i.e. providing a clockwise rotation of the gearbox input shaft when viewed on input. In forward drive the output shaft rotates opposite to input shaft therefore requiring a right hand propeller.

Download: Installation Drawing | User Manual

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Nominal Power Ratings, PRM 125 Gearbox

Model Ahead Ratio Pleasure Light Commercial
kW BHP kW BHP
125D2 2.04:1 1.31 1.75 0.71 0.95
125D2.5 2.50:1 1.04 1.39 0.71 0.95
125D3 2.94:1 0.86 1.15 0.60 0.80
Max. Input Power 52 70 36 48

Maximum operating speeds : 5000 rev/min

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