General Specifications
HP / kW 25 HP / 18.6 kW
Displacement 429 cc (26.2 cu in.)
Cylinders 2 (Inline)
WOT RPM Range Check Manual
Bore x Stroke 68 x 59 mm
Weight (Lightest) 48 kg / 106 lbs
Drive & Lower Unit
Gear Ratio 1.92:1
Shaft Options 15, 20
Propeller Style 10–13"
Maintenance Quick-Specs
Engine Oil 50:1 Pre-mix
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 25hp SeaPro (2-Stroke) is typically found on a plate located on the transom bracket.