Description

Mercury 25MLH FourStroke EFI 20″ Outboard Motor

The Mercury 25MLH FourStroke EFI 20″ Outboard Motor is a lightweight, fuel-efficient portable outboard designed for anglers, recreational boaters, and commercial operators who need dependable performance in a compact package. Powered by Mercury’s 526 cc inline 3-cylinder SOHC FourStroke engine, the 25MLH delivers strong low-end torque, smooth acceleration, and quiet operation while remaining one of the lightest 25 HP outboards in its class. Its Electronic Fuel Injection (EFI) system provides instant starts, crisp throttle response, and excellent fuel economy without requiring a manual choke.

Configured with a 20-inch (Long Shaft), manual start, and tiller steering, the Mercury 25MLH is ideal for aluminum fishing boats, jon boats, inflatables, skiffs, and utility boats. The battery-free EFI system allows easy manual starting, while the manual trim and shallow-water drive make it well suited for rivers, lakes, and coastal waters. Built with corrosion-resistant materials and simple maintenance points, the 25MLH is engineered to provide years of reliable service in both freshwater and saltwater environments.

Specifications

• Engine Type: Inline 3-Cylinder, SOHC, 4-Stroke
• Horsepower: 25 HP
• Displacement: 526 cc (32.1 cu. in.)
• Fuel System: Electronic Fuel Injection (EFI)
• Starting System: Manual Start
• Steering: Tiller Handle
• Shaft Length: 20″ (Long Shaft)
• Trim & Tilt: Manual Trim with Shallow-Water Drive
• Gear Shift: Forward, Neutral, Reverse
• Gear Ratio: 1.92:1
• Cooling System: Water-Cooled with Thermostat
• Alternator Output: Optional 15-Amp Charging System
• Recommended Full Throttle RPM: 5,000–6,000 RPM
• Fuel Tank: 6.6-Gallon (25-Liter) External Fuel Tank
• Fuel Type: Unleaded Gasoline (90 RON / 87 Octane Minimum)
• Approximate Dry Weight: 157 lbs (71 kg)

Key Features

• Lightweight 526 cc inline 3-cylinder FourStroke engine.
• Electronic Fuel Injection (EFI) for reliable starting and improved fuel efficiency.
• Battery-free EFI enables manual starting without a battery.
• Manual start and tiller steering for simple, dependable operation.
• Smooth and quiet three-cylinder performance with reduced vibration.
• Manual trim with shallow-water drive capability.
• Through-propeller exhaust for quieter operation.
• Engine protection system monitors low oil pressure, overheating, over-revving, and sensor faults.
• Corrosion-resistant construction for dependable freshwater and saltwater use.
• Easy-access service points simplify routine maintenance.

Ideal Applications

• Aluminum fishing boats
• Jon boats
• Inflatable boats
• Skiffs
• Utility boats
• Small workboats
• Tender boats
• Recreational watercraft

Why Choose the Mercury 25MLH FourStroke?

The Mercury 25MLH FourStroke EFI combines the smooth performance of a three-cylinder engine with advanced battery-free EFI technology to deliver dependable power, excellent fuel economy, and straightforward operation. Its lightweight construction, long-shaft configuration, and durable design make it an excellent choice for boaters seeking a reliable portable outboard for fishing, recreation, or light commercial use. Whether you’re navigating inland lakes, rivers, or coastal waters, the Mercury 25MLH FourStroke provides the efficiency, durability, and trusted performance that have made Mercury Marine a leader in outboard technology.

Mercury 25MLH FourStroke. Purchase this Mercury outboard model and get a total of 5 years of Mercury factory-backed limited coverage! In addition to the standard 3-year warranty, you will also receive a 2-year Mercury Product Protection Gold plan!