← Back to Mercury outboards
Mercury · SeaPro · 2026
SeaPro 300hp CMS
V8 · 300 / 221
No price shown. Mercury publishes no public Canadian price for outboards — it is dealer-set and does not include rigging, controls, propeller, installation or tax. Get the number from the shop before quoting anyone.
Source: https://www.mercurymarine.com/ca/en/engines/outboard/seapro/seapro-200-350hp · compare page · Canadian catalogue, 2026 model year. Rigging comes from Mercury’s public parts data. Verify against the source before repeating a spec to a customer.
At a glance
Horsepower300
Power (hp / kW)300 / 221
EngineV8
Displacement4.6L
Dry weight527 lbs / 239 kg (lightest model available)
Shaft lengths availableL · XL · XXL
Engine
Cylinder layoutV
Cylinders8
Displacement (cc)4600 cc
Displacement (cu in)Not published by Mercury
GearcaseNot published by Mercury
MidsectionCMS
Charging
Alternator85 amp (1071 Watt) with Idle Charge
Output85 amp / 1071 watt
FeaturesIdle charge
Fuel
Recommended fuelUnleaded Regular 87 Octane Minimum (R+M/2) or 90 RON, 10% Ethanol Maximum
Fuel typegasoline
Minimum octane87 (R+M/2) · 90 RON
Maximum ethanol10%
Rigging & electronics
SmartCraftYes
Jet driveNo
High-thrust kickerNo
Commercial dutyYes
ColoursBlack
How it can be ordered
12 configurations · 24 orderable model numbers. Shaft is Mercury’s own code — they do not publish the inch mapping, so this never says 20″.
L shaft13000024A 13000084A 13000085A
L shaft · Digital Throttle & Shift13000025A
L shaft · counter-rotating13000026A 13000086A 13000087A
L shaft · counter-rotating · Digital Throttle & Shift13000027A
XL shaft13000028A 13000088A 13000089A
XL shaft · Digital Throttle & Shift13000029A
XL shaft · counter-rotating13000030A 13000090A 13000091A
XL shaft · counter-rotating · Digital Throttle & Shift13000031A
XXL shaft13000032A 13000092A 13000093A
XXL shaft · Digital Throttle & Shift13000033A
XXL shaft · counter-rotating13000034A 13000094A 13000095A
XXL shaft · counter-rotating · Digital Throttle & Shift13000035A