
PRM 90 D2 2.04:1 Marine Gearbox
Managing small yacht and canal craft propulsion lines, the 9 kg PRM PRM90-D2 marine reduction gear transmission converts 48 HP input at 5000 RPM through an efficient 2.04:1 offset gear assembly.
- 2.04:1 reduction steps down engine speed.
- Offset parallel layout simplifies shaft alignment.
- Cone clutch provides smooth mechanical engagement.
- Continuous rating handles 15 HP diesels.
- Ultra-light unit weighs exactly 9 kg.
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).
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.
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.
Product Specifications
PRM 90 D2 Marine Gearbox - 2.04:1 Ratio
| Brand | PRM Marine |
|---|---|
| Model / SKU | PRM90-D2 |
| Country of Origin | United Kingdom |
| Output Configuration | Parallel (Offset) |
| Reduction Ratio | 2.04:1 |
| Max Input Power (Pleasure) | 48 HP (36 kW) @ 5000 RPM |
| Max Input Power (Continuous) | 15 HP (11 kW) @ 3000 RPM |
| Clutch Type | Mechanical Cone Clutch |
| Oil Capacity | 0.30 Liters |
| Oil Type | ATF (Dexron II or III) |
| Dry Weight | 20 lbs (9 kg) |
| Primary Application | Small Yachts & Canal Boats |
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