PRM 90 D2.5 2.5:1 Marine Gearbox

Configure a compact offset drivetrain with the PRM 90 D2.5 2.5:1 Marine Gearbox. This marine gearbox is specified for small sailboats and canal boats, with a 2.5:1 reduction ratio and a parallel output configuration with offset.

Model PRM90-D2.5 uses a mechanical cone clutch and has a maximum pleasure-use input rating of 48 HP (36 kW) at 5,000 RPM. Its separate continuous-duty input rating is 15 HP (11 kW) at 3,000 RPM. The supplied service data lists ATF Dexron II or III, a 0.08-gallon (0.30-liter) oil capacity, and a dry weight of 20 lb (9 kg).

Fitment and Propulsion Use

The PRM 90 D2.5 is specified for small sailboats and canal boats. It supports propulsion systems requiring a 2.5:1 reduction ratio and a parallel offset output configuration. The pleasure-use and continuous-duty ratings apply at different engine speeds, so match the actual engine output and vessel operating profile before ordering. Confirm fitment using the engine model, serial number, rated torque, operating RPM, reduction ratio, and manufacturer drivetrain documentation before ordering.

Before Ordering the PRM 90 D2.5

Verify that PRM Marine model PRM90-D2.5 is suitable for your small sailboat or canal-boat propulsion system. Confirm the 2.5:1 reduction ratio, parallel offset output configuration, 48 HP (36 kW) maximum pleasure rating at 5,000 RPM, 15 HP (11 kW) maximum continuous rating at 3,000 RPM, mechanical cone clutch, ATF Dexron II or III oil requirement, 0.08-gallon (0.30-liter) oil capacity, and 20 lb (9 kg) dry weight. Confirm compatibility with your engine manufacturer’s documentation before purchase.