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Mercury 3.5 hp FourStroke Outboard

The Mercury 3.5 hp FourStroke Outboard is a lightweight, portable, and efficient single-cylinder engine ideal for small boats. With a 4-stroke OHV design, 360° tiller steering, and a 1.1 L built-in fuel tank, it delivers smooth, reliable performance. Weighing just 17–18 kg, it’s easy to handle and features water cooling, a 4-position trim, and a standard 3-blade prop. Backed by up to 7 years of warranty coverage, it’s built for dependable adventures.

Price From:

£745.20

Key Specifications

Horsepower:

3.5 hp @ 5,000–6,000 rpm

engine type:

Single-cylinder, 4-stroke, OHV

Displacement:

85 cc

starting system:

Manual recoil with automatic decompression

Steering:

Tiller handle with 360° rotation

Shaft lenghts:

Available in Short (15″) or Long (20″)

weight:

17–18 kg (38–41 lb)

fuel system:

Integrated 1.1 L (0.3 gal) fuel tank, carbureted

gear ratio:

2.15:1

cooling:

Water-cooled with thermostat

trim positions:

4-position trim with shallow water setting

Propeller:

Standard 3-blade composite

Warranty:
Enjoy up to 7 years of factory-backed coverage when you combine the standard 3-year warranty with Mercury’s extended protection plan.

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Southampton boat show

We’re Heading to the Boat Show!

Join us from 19th to 28th September 2025 at the Sea Storm stand #034!

Don’t miss out — see you there!