ZF Hurth Marine Transmission 25M MS25L 2.74:1 3581835 Volvo Penta TMD22 Reverse Gear.
This is a ZF 25M. Branded by Volvo Penta as MS25L. Gear ratio is 2.74:1. These are bidirectional with full power and matched gearing for both directions. This unit is off a TMD22. The unit has been shift tested and performs beautifully. The unit was also pressure tested for cracks or leaks and the unit passed. Shifts smooth and had very clean fluid.