PRM 90 D2 2.04:1 Marine Gearbox

Description

Match a 2.04:1 reduction requirement with the PRM 90 D2 2.04:1 Marine Gearbox. This marine gearbox is specified for small yachts and canal boats, with a 2.04:1 reduction ratio and a parallel output configuration with offset.

Model PRM90-D2 uses a mechanical cone clutch and provides 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. Service data specifies ATF Dexron II or III, a 0.30-liter oil capacity, and a dry weight of 20 lb (9 kg).

Key Features of PRM 90 D2

• 2.04:1 reduction ratio identifies the listed speed-reduction configuration for propulsion-system matching.
• Parallel output with offset defines the supplied output-shaft arrangement.
• 48 HP (36 kW) maximum pleasure-use input rating at 5,000 RPM provides the stated pleasure-duty limit.
• 15 HP (11 kW) maximum continuous input rating at 3,000 RPM identifies the listed continuous-duty limit.
• Mechanical cone clutch provides the stated clutch configuration.
• ATF Dexron II or III is the listed service oil type.
• 0.30-liter oil capacity identifies the stated lubricant fill quantity.
• 20 lb (9 kg) dry weight supports installation and handling planning.
• Specified application for small yachts and canal boats helps identify the intended vessel category.

Fitment and Propulsion Use

The PRM 90 D2 is specified for small yachts and canal boats. It supports propulsion systems requiring a 2.04:1 reduction ratio and a parallel offset output configuration. The listed pleasure-use and continuous-duty ratings apply at different engine speeds, so verify the engine output, transmission interface, shaft geometry, and vessel-duty profile before ordering. Confirm fitment using the engine model, serial number, rated torque, operating RPM, reduction ratio, and manufacturer drivetrain documentation before ordering.

Installation and Service Considerations

Verify that the parallel offset output configuration, 2.04:1 reduction ratio, engine power rating, and available installation geometry match the vessel drivetrain. Use only the listed ATF Dexron II or III oil and 0.30-liter oil capacity as directed by the manufacturer’s documentation. Follow the engine and gearbox manufacturer’s installation manuals and product instructions for alignment, lubrication, controls, cooling connections, and service procedures.

Before Ordering the PRM 90 D2

Verify that PRM Marine model PRM90-D2 matches your small-yacht or canal-boat propulsion system. Confirm the 2.04:1 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, 0.30-liter oil capacity, and 20 lb (9 kg) dry weight. Confirm compatibility with your engine manufacturer’s documentation before purchase.