Volvo Penta D2-50 – Inboard Diesel Engine 49 HP

Volvo Penta D2-50 49 HP – Reliable Auxiliary Inboard Diesel

Overcoming the reliability challenges of long-range cruising, the Volvo Penta D2-50 produces a steady 49 HP at 3000 RPM. This 4-cylinder, naturally aspirated engine is engineered specifically for the American sailing yacht market, where steady, vibration-free propulsion is essential for comfort on board. For the American sailor, the D2-50 offers a “peace of mind” power plant that thrives in high-load conditions, providing enough thrust to motor through heavy head-seas while maintaining exceptional fuel efficiency across the USA coastal sounds.

Meeting strict USA EPA Tier 3 emission mandates, the D2-50 emphasizes clean-burning performance and low noise levels. The integrated freshwater cooling system and saltwater-resistant heat exchanger provide a critical defense against the corrosive environments of the Pacific and Atlantic coasts. With its straightforward mechanical design and high-output 115A alternator, American owners benefit from a dependable electrical and propulsion core that is simplified for ease of maintenance during long-distance American maritime adventures.

Core Technical Specifications

• Maximum Output: 49 HP at 3000 RPM.
• Displacement: 135 cubic inches (2.2 Liters).
• Configuration: 4-cylinder in-line, 4-stroke diesel.
• Aspiration: Naturally aspirated for peak durability.
• Dry Weight: Approximately 549 lbs including gear.
• Fuel Injection: Reliable mechanical system.
• Electrical: 12V / 115A heavy-duty alternator.
• Compliance: EPA Tier 3 and USCG compliant.