Volvo Penta D8-550 – Inboard Diesel Engine 550 HP

Volvo Penta D8-550 550 HP – Reliable Mid-Range Yacht Power

Balancing high-torque density with smooth, linear power delivery, the Volvo Penta D8-550 produces 550 HP at 2900 RPM. This engine is specifically engineered for mid-sized American motor yachts and sportfishing vessels that require consistent thrust in heavy seas. The 7.7-liter block utilizes advanced thermal management and electronic fuel mapping to minimize noise and vibration, providing a refined environment on deck for USA cruising families. Its compact dimensions for its displacement allow for versatile installation in twin-engine configurations common in American-built hulls.

Fully compliant with USA EPA Tier 3 standards, the D8-550 emphasizes operational clean-burning efficiency and reduced environmental footprint. The engine is NMEA 2000 compatible, allowing American owners to monitor real-time performance data on modern glass bridge systems. Its heavy-duty cooling system and integrated oil cooler are built to withstand the rigorous demands of seasonal use in the Pacific Northwest or year-round operation in the Gulf of Mexico, providing a dependable partner for long-distance American maritime adventures.

Core Technical Specifications

• Maximum Output: 550 HP at 2900 RPM.
• Displacement: 470 cubic inches (7.7 Liters).
• Configuration: 6-cylinder in-line, water-cooled diesel.
• Aspiration: Turbocharged and intercooled.
• Dry Weight: Approximately 1863 lbs (excluding gear).
• Fuel Injection: Electronic common-rail system.
• Electrical: High-capacity charging system standard.
• Compliance: EPA Tier 3 and RCD2 certified.