Mercury 4MLH 4HP Outboard – 20in Shaft, Tiller, Manual Start

Rig the long-shaft, carbureted Mercury 4MLH to resolve severe propeller ventilation on tall sailboat transoms. Weighing exactly 26 kg, this 123cc single-cylinder block pushes heavy displacement hulls steadily against steep morning tides. Taping your auxiliary bracket confirms this 20 inch long shaft portable outboard reaches undisturbed green water safely.

Clear underwater debris safely in shallow creeks by utilizing the six-position manual tilt bracket as a direct physical fix. You simply grab the rear cowl grip and pull the gearcase upward to prevent impact. Mercury engineers the water-cooled block using multi-stage marine primers. This physical barrier blocks cosmetic paint blistering when repowering small sailboats in harsh saltwater environments.

Key Features of Mercury 4MLH

- 20-Inch Long Shaft: Reaches deep below elevated sailboat auxiliary brackets, keeping the propeller fully engaged during steep coastal swells.
- 26 Kilogram Dry Weight: Keeps the transom weight incredibly low, preventing the stern from dragging excessively on small displacement vessels.
- Six-Position Manual Tilt: Lifts the gearcase physically above the waterline, preventing damaging marine algae growth while the sailboat is moored.
- Integrated 1.1L Fuel Tank: Strips external gas lines completely from your deck layout, freeing up critical cockpit space on small sailboats.
- 123cc Four-Stroke Powerhead: Produces smooth low-end torque internally, pushing heavy displacement hulls steadily against coastal tidal currents.
- Multi-Function Tiller Handle: Concentrates shift and throttle inputs squarely in your grip, sharpening handling response in narrow twisting creeks.
- Carbureted Fuel Induction: Meters gas reliably into the cylinder, providing steady low-RPM operation when navigating no-wake harbor zones.
- Manual Pull Starter: Ignites the engine instantly via physical force, completely eliminating reliance on complex 12-volt marine battery banks.
- Multi-Stage Marine Primer: Bonds chemically to the alloy block, reflecting harsh ultraviolet light and preventing cosmetic saltwater blistering over time.
- EPA-Compliant Four-Stroke: Eliminates messy two-stroke oil mixing requirements, keeping pristine anchorages completely free of surface oil slicks.

Why Choose Mercury 4MLH

This specific 20-inch block is built strictly to serve as auxiliary sailboat power or propel high-transom displacement hulls. Mounting it on a standard 15-inch dinghy will cause massive lower unit drag. Installing a reliable long shaft portable outboard motor ensures safe harbor returns.

- Verify your sailboat motor bracket requires exactly a 20-inch vertical shaft drop.
- Ensure the operator possesses the physical strength to lift 26 kilograms safely.
- Avoid toxic exhaust fumes using advanced four-stroke internal lubrication.

Ideal Application and Vessel Fitment

This 20-inch long-shaft configuration is engineered specifically as a primary kicker for small sailboats and auxiliary power for high-transom displacement hulls. The extended midsection ensures the propeller remains deeply submerged when the vessel pitches in steep ocean swells. By utilizing a physical tiller handle and integral fuel tank, captains gain total directional control when docking, making this long shaft portable outboard motor an essential tool for maneuvering heavy sailboats safely through crowded coastal marinas.

Warranty, Support and Maintenance

Authorized recreational operation receives a 3-Year Limited Warranty alongside a 3-Year Corrosion Warranty. Registered commercial applications fall under a strict 1-Year Limited Warranty with zero corrosion coverage applied to the block. Scheduled maintenance requires replacing gearcase lubricants and checking spark plugs at manual-specified intervals. Always save all physical service records. Your engine serial number acts as the only way to source exact genuine replacement parts. Mulmotor provides pre-purchase product guidance and order-related customer support.