Mercury 20MLH 20HP FourStroke Manual 20″ Outboard Motor

Mercury 20HP 20MLH FourStroke Manual Long Power

Technology driven and built upon a 333cc twin-cylinder engine family, the Mercury 20HP 20MLH serves as a high-torque solution for US boaters requiring a prop-rated propulsion unit with superior thermal stability. This 20HP four-stroke technology utilizes an inline-two architecture to minimize internal friction and maximize fuel induction efficiency for high-transom aluminum boats and utilities. The 20-inch long shaft design provides an optimized center of gravity for deeper transoms, while the manual recoil with battery-free EFI ensures immediate, one-pull ignition across diverse inland and coastal environments.

Operational longevity of the 20MLH model is secured through a specialized water-cooled system featuring a zinc-coated internal water passage to maintain internal cleanliness. To facilitate easy after-storage starts, the unit employs a vapor-free fuel induction system that maintains throttle response without a battery, while the Mercury XK360 alloy science utilizes a multi-layer finish to mitigate oxidation in high-salinity waters. With a 3-year/300-hour service interval and a front-mounted shift lever, this fuel-efficient outboard provides superior ownership value for boaters seeking a lightweight, low-emission engine with manual simplicity.

Key Features of Mercury 20MLH

• 333cc Inline 2-Cylinder EFI Block
• 20.0HP Prop-Rated Output at 6100 RPM
• 20″ Long Shaft / 99 lbs Dry Weight Chassis
• Battery-Free Electronic Fuel Injection (EFI)
• Manual Start Tiller Steering Control
• Digital CDI Ignition with RPM Rev Limiter
• 2.15:1 Gear Ratio / 34oz Oil Capacity