General Specifications
HP / kW 20 HP / 14.9 kW
Displacement 333 cc (20.3 cu in.)
Cylinders 2 (Inline)
WOT RPM Range Check Manual
Bore x Stroke 61 x 57 mm
Weight (Lightest) 45 kg / 99 lbs
Drive & Lower Unit
Gear Ratio 2.15:1
Shaft Options 15, 20
Propeller Style 9–11"
Maintenance Quick-Specs
Engine Oil Mercury FourStroke Oil 10W-30
Oil Capacity See Manual
Gear Lube See Manual
Spark Plug Check Search
Fuel/Power Regular Unleaded 87 Oct
Identification
The serial number for the Mercury 20hp FourStroke EFI is typically found on a plate located on the transom bracket.