Yanmar 8LV-370 – Marine Diesel Engine 370 HP

With a verified 4.46-liter V8 engine block and twin turbochargers, the Yanmar 8LV-370 delivers high-torque marine diesel output. Pushing 370 horsepower at 3800 RPM, this V8 motor gives express cruisers and sportfishing boats instant acceleration onto plane. Denso common-rail direct fuel injection optimizes fuel delivery across all throttle positions, while Yanmar VC10 electronic control handles digital throttle and gear operation.

Thermal management is handled by a closed freshwater cooling loop with an internal heat exchanger that isolates engine metals from raw saltwater. It packs a heavy-duty 12V 180-amp alternator for massive battery charging demand, an SAE 3 flywheel housing, and a dry weight of 450 kg (992 lbs).

Engine Performance and Engineering

V8 architecture combined with common-rail fuel delivery creates an exceptionally smooth power plant in this Yanmar inboard engine. Twin water-cooled turbochargers feed high-density air into the 4.46-liter cylinders, while a hydraulic clutch transmission delivers whisper-quiet gear shifting when maneuvering near docks.

Why Choose the Yanmar 8LV-370 Inboard Marine Engine

Captains select the 8LV-370 marine engine for its light dry weight and punchy 370 horsepower V8 performance. Common-rail fuel injection and twin intercooled turbochargers provide instant planing thrust without diesel smoke. The combination of an SAE 3 flywheel housing, 180-amp alternator, and digital control integration makes it an outstanding repower choice for high-speed sportfishers.

Warranty and Support

Yanmar backs this high-performance engine with a 2-Year Limited Recreational Warranty covering major engine assembly components. For engine details and order support, offers assistance before your repower order is placed. A pre-shipment visual inspection confirms the engine crate and documented included rigging items. Current coverage information and warranty eligibility are available for review on before ordering.

Before Ordering the Yanmar 8LV-370 Inboard Marine Engine

Measure your engine room length, width, and height clearance for a 4.46-liter V8 block. Confirm your transmission ratio or ZT370 sterndrive coupler, fuel line diameter, and battery cold cranking amps meet manufacturer requirements before ordering.