A license-free outboard engine ideal for fishing boats and tenders. Mercury’s reputation for durability and quality is well-reflected in this 4HP 4-stroke engine. Its manual start system is reliable, and its integrated exhaust through the propeller ensures quiet operation. Multiple trim positions improve shallow-water handling.
Engine Overview
Pre-run at the factory for immediate use and requires no license.
The Mercury 4HP engine delivers smooth, fuel-efficient performance and easy handling.
Key Specifications
Power: 4 HP / 2.9 kW
Engine type: 1 cylinder
Displacement: 123 cm³
Max RPM range: 4500–5500
Fuel system: Pushrod – 2 valves (OHV)
Fuel: Unleaded 95
Recommended oil: Mercury FourStroke 10W-30
Starting system: Manual (pull-start)
Steering: Tiller handle
Shaft length: Short – 15″ / 381 mm or Long – 20″ / 508 mm
Gear shift: Forward – Neutral – Reverse
Gear ratio: 2.15:1
Dry weight: 25 kg
Bore and stroke: 59 x 45 mm
Ignition: CDI with electronic advance
Fuel delivery: Carburetor
Cooling system: Water-cooled with thermostat
Exhaust: Through-propeller
Trim positions: 6
Shallow water trim angle: 16°
Built-in fuel tank: 1.1 liters
Optional external fuel tank: 12 liters
Color: Phantom Black
Included Accessories
1 bottle of engine oil
1 tool kit
1 pre-installed propeller
License-free use: Yes (up to 6HP 4-stroke engines)
Warranty: 5 years
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