Mercury Marine Mercury 3.5MH

The Mercury 3.5 MH FourStroke is a compact, lightweight, and dependable portable outboard designed for small boats, inflatables, dinghies, and tenders. Delivering smooth and quiet performance, this engine is known for excellent fuel efficiency and Mercury’s proven reliability.
The MH configuration features manual start, tiller steering, and a short shaft, making it ideal for boats with standard transom heights. Easy rope starting, simple controls, and a lightweight design make this outboard easy to transport, operate, and maintain.
Built with corrosion‑resistant materials and manufactured to the same high standards as larger Mercury outboards, the 3.5 MH performs reliably in both freshwater and saltwater environments.

Key Features

3.5 HP Mercury FourStroke engine
Manual start with tiller handle control
Short shaft (MH) configuration
Lightweight and portable design
Quiet, fuel‑efficient operation
Integral fuel tank
Durable, corrosion‑resistant construction


Ideal For

Small fishing boats
Inflatables and dinghies
Tenders and utility boats
Auxiliary or backup power

Specifications

Horsepower: 3.5 HP
Engine Type: Inline 1‑Cylinder FourStroke
Displacement: 85 cc
Starting System: Manual
Steering: Tiller
Shaft Length: 15" (Short Shaft)
Fuel Delivery: Carbureted
Fuel Tank: Integral 1.0 L (0.26 gal)
Full Throttle RPM Range: 5000–6000 RPM
Trim & Tilt: Manual
Weight: Approx. 43 lb (19.5 kg)