
2021 Mercury 8MLH 4S
Description
* PROP INCLUDED *
The 2021 Mercury 8MLH 4S is a new, lightweight outboard motor designed for reliable performance on the water. This model delivers 8 horsepower from its inline 2-cylinder, 4-stroke engine, ensuring efficient power for small to medium-sized boats. Weighing only 84 lbs, this motor is easy to install and handle, offering flexibility for various marine applications.
Looking to repower your boat, or have questions?
Call Buck's Island Repower Center at 1-800-I'M READY! 1-800-467-3239.
The 2021 Mercury 8MLH is an 8 HP, 4-stroke outboard motor featuring a 20-inch long shaft, manual start, and tiller steering.
- Core SpecificationsEngine & Performance: Inline 2-cylinder, 4-stroke producing 8 hp (5.9 kW) with a 5000–6000 RPM range. Features a 208 cc displacement (2.16 x 1.73 in bore x stroke), SOHC carbureted fuel induction, and a 6-amp / 76-watt alternator.
- Dimensions & Drive: Weighs 84 lbs dry, uses a 20-inch shaft, a 2.08:1 gear ratio with F-N-R shifting, and comes with a 3.2-gallon external fuel tank.
- Operation & Maintenance: Runs on standard 87 octane fuel and Mercury 10W-30 FourStroke oil. Equipped with water-cooling, ratcheting manual trim (with shallow water drive), and low oil/over-rev warning protections.
Specifications
| Manufacturer | Mercury |
| Model | 8MLH 4S |
| Year | 2021 |
| Condition | New |
| Serial Number | 1R120718 |
| Stock Number | 1R120718 |
| Hours | 0 |
| Horsepower | 8 |
| Engine Type | Inline 2-cylinder, 4-stroke |
| Shaft Length | 20" |
| Dry Weight | 84 lbs |
| Steering | Tiller Multi-Function Control (TMC) |








