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Volvo Penta MS25A 2.74 Marine Gearbox
Positioned along 8-degree down-angle propeller shaft lines, the 17 kg Volvo Penta MS25A-274 down angle marine gearbox manages 50 HP input at 3000 RPM on modern sailing yachts with angled shafts.
- 8 degree down angle lowers shaft.
- 2.74:1 ratio powers auxiliary sailboat shafts.
- Mechanical cone clutch engages crisp shifting.
- Oil sump takes 0.45 liters VDS-3.
- Compact angled casing weighs 17 kg.
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Description
Match an angled shaft layout with the Volvo Penta MS25A 2.74 Marine Gearbox. This marine gearbox is specified for sailing yachts with angled shafts, with a 2.74:1 reduction ratio and an 8-degree down-angle output configuration.
Model VP-MS25A-274 uses a mechanical cone clutch and has a maximum input rating of 50 HP (37 kW) at 3,000 RPM. The supplied service data lists VDS-3 or SAE 15W40 oil, a 0.45-liter oil capacity, and a dry weight of 37 lb (17 kg).
Key Features of Volvo Penta MS25A
- 2.74:1 reduction ratio identifies the listed speed-reduction configuration for drivetrain matching.
- 8-degree down-angle output configuration defines the supplied shaft-angle arrangement.
- 50 HP (37 kW) maximum input rating at 3,000 RPM provides the stated engine-input limit.
- Mechanical cone clutch identifies the stated clutch design.
- Volvo Penta VDS-3 or SAE 15W40 is the listed service oil type.
- 0.45-liter oil capacity identifies the stated lubricant fill quantity.
- 37 lb (17 kg) dry weight supports installation and handling planning.
- Specified sailing-yacht use with angled shafts identifies the intended vessel and driveline configuration.
Fitment and Propulsion Use
The Volvo Penta MS25A 2.74 is specified for sailing yachts with angled shafts. It supports propulsion systems requiring a 2.74:1 reduction ratio and an 8-degree down-angle output configuration. Confirm the exact engine model, serial number, rated torque, operating RPM, shaft angle, shaft rotation, and installation interface before ordering.
Installation and Service Considerations
Verify that the 8-degree down-angle output configuration, 2.74:1 reduction ratio, 50 HP input rating at 3,000 RPM, and angled-shaft geometry match the vessel drivetrain. Use only the listed VDS-3 or SAE 15W40 oil and 0.45-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 Volvo Penta MS25A
Verify that Volvo Penta model VP-MS25A-274 matches your sailing-yacht angled-shaft installation. Confirm the 2.74:1 reduction ratio, 8-degree down-angle output configuration, 50 HP (37 kW) maximum input rating at 3,000 RPM, mechanical cone clutch, Volvo Penta VDS-3 or SAE 15W40 oil requirement, 0.45-liter oil capacity, and 37 lb (17 kg) dry weight. Confirm compatibility with your engine manufacturer’s documentation before purchase.
Volvo Penta MS25A Marine Gearbox - 2.74:1 Ratio
| Brand | Volvo Penta |
| Model / SKU | VP-MS25A-274 |
| Country of Origin | Sweden / EU |
| Reduction Ratio | 2.74:1 |
| Output Configuration | 8° Down Angle |
| Max Input Power | 50 HP (37 kW) @ 3000 RPM |
| Clutch Type | Mechanical Cone Clutch |
| Oil Capacity | 0.45 Liters |
| Oil Type | VDS-3 or SAE 15W40 |
| Dry Weight | 37 lbs (17 kg) |
| Primary Application | Sailing Yachts (Angled Shaft) |
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