Mercury 20EH 20HP FourStroke Outboard – Electric Start, 15-Inch Shaft
The Mercury 20EH is a 20HP FourStroke outboard with electric start, tiller steering, EFI, and a 15-inch shaft.
- Displacement: 333cc
- Configuration: two-cylinder SOHC
- Dry weight: 103 lb
- Full-throttle range: 5,700–6,200 RPM
- Gear ratio: 2.15:1
$1,850.64
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The Mercury 20EH is a 20HP FourStroke outboard motor with electronic fuel injection, electric start, tiller steering, and a 15-inch shaft. Buyers should verify transom height, steering arrangement, electrical requirements, controls, propeller selection, and installation compatibility before ordering.
Fitment and maintenance
Confirm that the 15-inch shaft matches the transom and that the boat is rated for the motor weight and output. Follow the manufacturer documentation for mounting, fuel, electrical connections, break-in, cooling-system flushing, lubrication, and scheduled service.
Product Specifications
Mercury 20EH Outboard Motor Specs
| Brand | Mercury Marine |
|---|---|
| Country of Origin | Japan |
| Warranty Policy | 3 Years |
| Engine Architecture | Inline 2-Cylinder SOHC – Lightweight dual-cylinder overhead cam layout ensuring smooth low-vibration performance and optimal mechanical efficiency. |
| Displacement & Power | 333 cc – Yields 20 horsepower at 6000 RPM with an operating full-throttle ceiling spanning from 5700 to 6200 RPM using standard 87 octane fuel. |
| Fuel Induction System | Electronic Fuel Injection – Direct computerized fuel induction mapping exact cylinder combustion pressure to maximize turnkey reliability and throttle linearity. |
| Ergonomic Tiller Handle | Adjustable Control Tiller – Center-mounted multi-function steering arm integrating forward-neutral-reverse shifting, idle trim control, and throttle friction adjusters. |
| Shaft & Transom Layout | 15-inch Short Shaft – Form-engineered configuration specialized for standard short-transom utility craft, lightweight fishing boats, and inflatable tenders. |
| Control Mechanism | Electric Start Tiller – Hand-guided steering platform equipped with a key-switch electric starter paired with a manual 6-position trim and tilt lockdown. |
| Dry Weight Profile | 103 lbs – Extremely lightweight 47 kg configuration designed to cut down on total transom load weight parameters by eliminating hydraulic components. |
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