Mercury 3.5HP F3.5 FourStroke Outboard Engine - thumbnail 2
Mercury 3.5HP F3.5 FourStroke Outboard Engine - 2

Mercury 3.5HP F3.5 FourStroke Outboard Engine

SKU:1F14201BL

Regular price
£729.95 inc. VAT
Sale price
£729.95
Regular price
inc. VAT
£780.00
You save £50.05

Flexible Shipping Options - inc. Next Working Day UK Mainland

Click & Collect - available at Morgan Marine, Brightlingsea.

30-Days Free Returns - see our returns policy

Shaft Length
3 - 5 Working Days Delivery

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Trusted - Marine supplier since 1972

Fast - UK delivery


Mercury 3.5HP F3.5 FourStroke Outboard Engine

The Mercury FourStroke 3.5hp is a compact, reliable, and lightweight outboard engine built to make boating effortless. Designed for small boats, dinghies, and tenders, this 4-stroke outboard is perfect for weekend trips, calm-water fishing, or exploring waters that bigger engines can’t reach.

Mercury F3.5 Available Variants

MH - Standard Shaft (381mm transom)
MLH - Long Shaft (508mm transom)

Why Choose the Mercury FourStroke 3.5hp?

Lightweight & portable
At just 17–18 kg, it’s easy to lift, carry, and install. Ideal for bringing the fun wherever you go.

Reliable performance
4-stroke technology delivers smooth acceleration, quick response, and consistent speed on every outing.

Advanced tiller control
Ergonomic handle with easy-to-reach throttle gives you total command, left or right-handed setup possible on select models.

Convenient maintenance
Features like a no-spill oil change system and easy-access fuel filter keep upkeep simple.

Integrated fuel tank
1.3-litre tank keeps things compact, while still giving enough range for day trips.

Durable design
Premium alloys, corrosion-resistant coatings, and sealed electronics help it withstand the toughest marine conditions.

5-year leisure-use warranty
Enjoy peace of mind knowing your engine is backed by Mercury quality.

Mercury FourStroke 3.5hp Key Specifications

  • Engine type: 1 cylinder, 4-stroke
  • Horsepower / kW: 3.5 / 2.6
  • Displacement: 85 cc
  • Max RPM: 5000–6000
  • Starting: Manual
  • Gear ratio: 2.15:1, Forward ~ Neutral
  • Steering: Tiller
  • Trim positions: 4
  • Fuel tank: Integrated 1.3-litre (0.3 gal)
  • Fuel requirements: Unleaded petrol, 90 RON minimum
  • Weight: 17 kg
  • Recommended transom height: Short 381 mm / Long 508 mm

The Mercury FourStroke 3.5hp is built to take you places other engines can’t. Compact, easy to operate, and light enough to carry, it gives small boat owners the freedom to explore, fish, or cruise without limits.

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