Mercury 5HP 5MLH Propane – LPG 20in Shaft

Mercury 5HP 5MLH Propane LPG Long Power

Pioneering clean-fuel technology for small vessels, the Mercury 5HP 5MLH Propane utilizes a specialized 123cc LPG-powered architecture to deliver a high-torque solution for US boaters requiring a prop-rated propulsion unit with zero gasoline maintenance. This 5HP four-stroke technology eliminates fuel system gumming and ethanol issues to maximize mechanical efficiency and reliability for long-term sailboat storage or tender use. The 20-inch long shaft design provides an optimized center of gravity, while the manual recoil start and propane-specific fuel system ensure immediate, reliable ignition across diverse marine environments.

Operational longevity of the 5MLH Propane model is secured through a specialized pressurized lubrication system featuring 30% lower emissions compared to gasoline counterparts to maintain internal cleanliness and environmental compliance. To facilitate easy after-storage starts, the unit employs a sophisticated fuel regulator and safety shut-off valves for propane canisters, while the Mercury XK360 alloy science utilizes a multi-layer finish to mitigate oxidation. With a 3-year/300-hour service interval and a standard 5-foot fuel hose, this fuel-efficient outboard provides superior ownership value for boaters seeking a low-maintenance, eco-friendly engine.

Key Features of Mercury 5MLH Propane

• 123cc Inline 1-Cylinder OHV LPG Block
• 5.0HP Prop-Rated Output at 5000 RPM
• 20″ Long Shaft / 59 lbs Dry Weight Chassis
• Liquefied Petroleum Gas (LPG) Induction System
• Manual Start Tiller with 360-Degree Steering
• Propane-Specific Carburetion and Regulator
• 2.15:1 Gear Ratio / 15oz Oil Capacity