Yanmar 8LV-370 – Marine Diesel Engine 370 HP

Description

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).

Key Specifications of the Yanmar 8LV-370 Inboard Marine Engine

• The 4.46-liter V8 diesel block produces 370 horsepower at 3800 RPM, providing massive power density for fast planing hulls.
• Twin turbochargers with water-cooled intercoolers boost intake air density, resulting in rapid throttle response and high mid-range torque.
• Denso high-pressure common-rail fuel injection delivers precise fuel metering, drastically lowering combustion noise, smoke output, and exhaust emissions.
• Freshwater heat exchanger cooling isolates internal engine waterways from corrosive seawater, maintaining steady operating temperatures in tropical waters.
• A heavy-duty 12V 180-amp alternator supplies abundant electrical power to support complex modern navigation suites and house battery banks.
• Digital Yanmar VC10 electronic vessel controls integrate smoothly with NMEA 2000 networks for precise throttle and shift management.

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.

Installation and Repower Considerations

Ensure your engine bed stringers match the wide V8 mount centers and check that hatch openings provide crane access. Verify that raw water sea strainers and exhaust risers match the high cooling flow required by a 370 horsepower turbocharged diesel.

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, Mulmarine.com 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 Mulmarine.com 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.