Volvo Penta D4-225 – Marine Diesel Engine 225 HP

Need a diesel inboard engine with a verified 225 horsepower rating? The Volvo Penta D4-225 provides a 3.7-liter inline 4-cylinder block engineered for displacement cruisers, commercial workboats, and motor yachts. Operating at 3500 RPM max, this turbocharged and aftercooled motor delivers strong torque throughout its powerband. Common-rail fuel injection cuts combustion noise and exhaust smoke for comfortable cruising.

Freshwater heat exchanger cooling keeps seawater out of internal engine waterways, preventing scale and corrosion. The engine features an SAE 3 flywheel housing, a 115-amp alternator, Electronic Vessel Control digital management, and a dry weight of 482 kg.

Engine Performance and Engineering

Heavy-duty cylinder construction and electronic fuel management define the durability of this Volvo Penta inboard engine. The 13-liter coolant capacity maintains thermal stability, while EVC digital integration transmits vital telemetry to bridge screens.

Why Choose the Volvo Penta D4-225 Inboard Marine Engine

Boat owners choose the D4-225 marine engine for its durable 3.7-liter 4-cylinder block and steady 225 horsepower output. Its turbocharged common-rail design offers clean, smoke-free operation and low fuel consumption. Closed freshwater cooling, SAE 3 gear compatibility, and digital controls make it a dependable repower option.

Warranty and Support

Volvo Penta backs this engine with a 2-Year Factory Limited Warranty covering major internal mechanical assemblies. provides pre-purchase technical guidance and freight shipping customer support. Prior to freight shipment, staff verify the crated engine package against the confirmed order details. Review the applicable warranty information on before completing your order.

Before Ordering the Volvo Penta D4-225 Inboard Marine Engine

Measure your engine compartment dimensions to ensure proper clearance around the heat exchanger and air filter. Confirm your hydraulic transmission gear ratio, shaft coupling bolt pattern, and fuel supply line size before ordering.