Mercury Marine Mercury 9.9MLH EFI

The Mercury 9.9 MLH FourStroke is a lightweight, reliable, and versatile portable outboard designed for small fishing boats, aluminum hulls, and utility craft. Delivering smooth and quiet performance, this engine is known for its impressive fuel efficiency and Mercury’s proven long-term durability.

The MLH configuration features manual start, tiller steering, and a long shaft, making it the perfect fit for boats with 20" transoms. With its easy rope starting and intuitive controls, this outboard is designed for simple operation and hassle-free maintenance for both recreational and commercial users.

Built to the same high standards as Mercury’s larger engines, the 9.9 MLH uses premium corrosion‑resistant materials to ensure reliable performance in both freshwater and saltwater environments.

Key Features

9.9 HP Mercury FourStroke engine

Manual start with tiller handle control

Long shaft (MLH) 20" configuration

Lightweight and portable design for its class

Quiet, fuel‑efficient operation

Large carrying handle for easier transport

Durable, corrosion‑resistant construction

Ideal For

Small fishing boats and aluminum skiffs

Tenders and utility boats with tall transoms

Small pontoons or work boats

Reliable auxiliary or backup power

Specifications

Horsepower: 9.9 HP

Engine Type: Inline 2‑Cylinder FourStroke

Displacement: 208 cc

Starting System: Manual

Steering: Tiller

Shaft Length: 20" (Long Shaft)

Fuel Delivery: FUEL INJECTED

Fuel Tank: External (Typically 12 L / 3.2 gal)

Full Throttle RPM Range: 5000–6000 RPM

Trim & Tilt: Manual (Ratchet style)

Weight: Approx. 84 lb (38 kg)