Volvo Penta D8-550 – Inboard Diesel Engine 550 HP

Using a 7.7L inline six-cylinder configuration, the Volvo Penta D8-550 produces 550 hp at 2,900 rpm with twin turbochargers, a supercharger, and aftercooler. Common rail injection and EN 590 diesel define the stated fuel-system arrangement, while a 16.5:1 compression ratio is specified. Hydraulic transmission, ZF 286A shaft-drive compatibility, SAE 2 flywheel housing, and EVC electronic steering form the documented propulsion interfaces.

The engine weighs 840 kg dry and uses a 24V 110-amp alternator. Heat-exchanger cooling holds 35L coolant, water-cooled exhaust forms the stated exhaust arrangement, and wet-sump lubrication uses 27L oil capacity. Listed EPA Tier 3 and IMO II ratings, plus a 1-5-3-6-2-4 firing order, provide further technical context.

Why Choose the Volvo Penta D8-550 Marine Diesel Engine

The D8-550 marine diesel engine combines 550 hp at 2,900 rpm with a 7.7L inline six-cylinder platform using twin turbochargers, a supercharger, aftercooler, and common rail injection. Buyers can compare its hydraulic transmission, ZF 286A shaft-drive compatibility, EVC electronic controls, 24V alternator, and SAE 2 flywheel housing. The documented 840 kg dry weight and 35L coolant capacity support propulsion-installation planning.

Warranty and Support

Warranty coverage should be confirmed against the current Volvo Penta warranty policy applicable to the exact engine, purchase market, installation, and operating use. provides product-information support before purchase and assistance with order-related questions. Review warranty eligibility and current coverage details on before placing your order.

Before Ordering the Volvo Penta D8-550 Marine Diesel Engine

Before ordering, verify engine-bed dimensions, structural capacity for the 840 kg dry weight, SAE 2 flywheel-housing compatibility, ZF 286A shaft-drive requirements, hydraulic transmission, EVC controls, 24V electrical system, fuel supply, cooling-water intake, water-cooled exhaust routing, ventilation, propeller matching, shaft alignment, and professional installation planning.