Yanmar 8LV350 – Inboard Diesel Engine 350 HP

Constructed with a verified heavy-duty heat exchanger and a 4.46-liter V8 block, the Yanmar 8LV350 produces 350 horsepower at 3800 RPM. This twin-turbocharged, intercooled marine diesel engine powers sportfishing boats, express cruisers, and motor yachts. High-pressure common-rail fuel injection delivers clean, smoke-free combustion, while VC10 electronic vessel controls handle digital throttle and shift management.

Closed heat exchanger cooling keeps seawater out of internal block passages, extending engine life. Fitted with an SAE 3 flywheel housing, the engine includes a 12V 180-amp alternator, KMH61A or KMH61V hydraulic gear options, and a dry weight of 450 kg.

Engine Performance and Engineering

Smooth V8 balance and high-pressure fuel injection create an exceptionally refined power plant in this Yanmar inboard engine. Forced lubrication protects internal bearings under high-speed operation, while digital VC10 controls provide smooth helm operation.

Why Choose the Yanmar 8LV350 Inboard Marine Engine

Captains select the 8LV350 marine engine for its light dry weight and potent 350 horsepower V8 performance. Common-rail fuel delivery and twin intercooled turbochargers provide instant acceleration without diesel smoke. Closed heat exchanger cooling, SAE 3 housing compatibility, and an 180-amp alternator make it a top repower choice.

Warranty and Support

Yanmar protects this high-performance engine with a 2-Year Limited Recreational Warranty covering major engine block assemblies. provides product-information support before purchase and assistance with order-related questions. A pre-shipment visual inspection confirms the engine crate and documented included rigging items. Review warranty eligibility and current coverage details on before placing your order.

Before Ordering the Yanmar 8LV350 Inboard Marine Engine

Measure your engine room length, width, and height to confirm fitting space for a 4.46-liter V8 block. Confirm your transmission ratio, shaft coupler bolt pattern, and battery cold cranking amps before completing your purchase.