Mercury 350L 350HP Verado V10 20″ DTS Outboard Motor

The Mercury 350L Verado V10 is a 350hp standard rotation outboard designed with a 20-inch shaft for multi-engine offshore boats. This 5.7-liter naturally aspirated platform produces immense structural density through its 5719 cc displacement while maintaining an optimized dry weight of 695 lbs to maximize pure marine performance. Engineered explicitly for lower transom configurations, the 20-inch shaft length helps support ideal propeller depth and balanced tracking across heavy-duty fiberglass hulls navigating rough open ocean waters.

The 5800 to 6400 RPM operating range should be matched to the boat, load, propeller, and intended use. The 2.08:1 gear ratio should be matched with an appropriate propeller and boat setup. under heavy loads. This USA-built outboard leverages advanced block harmonics to eliminate low-frequency hull vibrations during severe long-range deep-sea operations.

Naturally Aspirated V10 Block

Advanced engineering treats the internal layout of this sleeveless 4-stroke powerhead to optimize overall thermal efficiency. This cutting-edge process shaves critical pounds off the block while vastly improving heat transfer during normal marine operation.

Advanced Range Optimization Injection

Electronic fuel induction sprays gasoline straight into the cylinders under high pressure for clean combustion on 87 octane fuel. This delivery is designed to support instant throttle response and crisp acceleration during acceleration and normal operation.

High Ratio Gearcase Profile

Oversized internal gears and a 2.08:1 gear ratio profile minimize underwater drag at high cruising speeds. This structural configuration mitigates lower-unit gear chatter and helps support smooth power transmission to the hub.

High Performance Vessel Match

High-performance center consoles, premium multi-engine day cruisers, and heavy sport boats from 22 to 34 feet are the target vessel application. The short shaft delivers leverage and structural vibration dampening when driving through steep waves.

SmartStart And Lubrication Access

Fast access to vital checking points is provided by a multi-piece outer cowling system that can simplify routine access. Oil-service access is supported by a well-positioned drain plug that keeps mess out of your transom.Maintenance note: Follow the manufacturer’s service procedures and lubrication specifications for the engine and gearcase.