In Stock
2017 Mercury 20 HP 20EH Outboard Motor
- ISPM 15 heat-treated Euro palletized & weatherproof shrink-wrapped
- Insured European road freight delivery with hydraulic tail-lift service
- Dispatches in 1–2 business days from our UK & European Logistics Centre
- Transit typically 1–3 business days (UK) / 3–6 business days (Continental Europe)
Need a matched transmission, controls or wiring package? Speak with a parts specialist.
Details & Inspection Notes
The 2017 version of Mercury's 20 HP 20EH Outboard Motor carries the same electric-start, tiller-steered, short-shaft layout and manual tilt as later model years of this engine.
What stays consistent across model years
Mercury built this 20EH configuration, electric start, 15-inch short shaft, and manual tilt, across multiple model years around the same core engine, so what typically changes year to year is cosmetic and paperwork rather than the mechanics underneath. Saltwater-rated construction and a water-cooled, thermostat-controlled system apply here just as on later 20EH units.
Tiller operation
Steering, throttle, and gear shift sit together in the tiller handle, which keeps the operator at the transom rather than a forward console. Tilt is manual, raised and lowered by hand rather than a power system, which keeps the motor's design simple.
Buying an earlier model year
An earlier model year like this 2017 unit is not a lesser engine than the following year's version; Mercury typically carries a design forward across several model years unchanged, so the main reason to prefer one year over another is usually price or availability rather than mechanical differences.
What to check before ordering an older model year
Ask about how long a given model year has been sitting in storage rather than assuming age alone tells you much, and confirm the fuel system has not had stale, ethanol-blended gas sitting in it for an extended period, since that affects starting on any outboard regardless of model year.
Common questions
What model year is this unit? 2017, Mercury's 20EH configuration.
Is it rated for saltwater? Yes, per Mercury's specification for this model, and it carries the standard new-motor warranty from Mercury Marine.
Specifications
| Model | 20EH |
| Model Year | 2017 |
| SKU | 20EH-17 |
| Weight | 121.0000 |
| Manufacturer | Mercury |
| Country of Manufacture | Japan |
| Horsepower | 20hp |
| Shaft Length | 15″ (Short) |
| Steering | Tiller |
| Starting | Electric |
| Trim & Tilt | Manual |
| Fuel Delivery | Carburetor |
| Fuel Tank | External |
| Cylinder(s) | 2 |
| Displacement | 351 cc (21.4 cubic inches) |
| Bore and Stroke | 61 x 60 mm (2.40 x 2.36 inches) |
| Full Throttle RPM Range | 5400-6100 |
| Ignition System | Digital CD Ignition w/Electronic Spark Advance |
| Induction Scavenging | SOHC |
| Valves per Cylinder | 2 |
| Fuel Type | 87 Octane (up to 10% ethanol content) |
| Fuel Tank / Fuel Line | 6.6 Gal. Fuel Tank + Quick Connect Fuel Line |
| Oil Type | SAE 10W-30 (Mercury 4-Stroke Outboard Oil) |
| Oil Capacity | 1 Quart (1000 ml) |
| Lubrication | Trochoid Pump |
| Alternator | 12V 138W 12A (standard on electric start models) |
| Cooling System | Water-Cooled, Thermostatically Controlled |
| Saltwater Rated | YES |
| Gear Ratio | 2.15:1 |
| Gear Shift | Forward-Neutral-Reverse (shift in tiller handle) |
| Propeller | 9.2″ Diameter X 9.8″ Pitch 3-Blade Aluminum |
| Internal Battery | No |
Startup & Installation Checklist
- Inspect all external gaskets, seals, spark plugs and timing components prior to installation.
- Refill engine oil, transmission gear oil and coolant to manufacturer-specified capacities before initial cranking.
- Prime the lubrication system and verify ECU wiring pinouts, sensors, and ground connections.
- Startup warranty covers internal lubricated components, cylinder heads, and engine block for 30 days from delivery.
Full terms: 30-day startup warranty · returns