Rated at more than 300 horsepower, Pro Max 300X is the most powerful outboard on the market. The outboard has an all-new powerhead, from its cylinder block to its high-flow fuel-injection system.
The block features high-performance cylinder porting and machined exhaust. These developments combined with a PCM 555 processor and a new exhaust tuner reportedly give the engine a 10-percent horsepower boost and an added 700 rpm of operating range over its predecessor, the Pro Max 300.
The injection system has a custom reed-plate assembly with rubber-coated reed blocks sporting single-stage, carbon-fiber reeds. The custom reed plate supports side-mounted fuel injections fed by an anodized aluminum fuel rail.
To operate its efficient electronic oil-injection system, the engine taps the brains of the PCM 555 processor. A system called “Engine Guardian” monitors 64 internal engine functions. Real-time data appears on the SmartCraft SC100 that comes with the outboard.
Pro Max 300X engines are with either the 20-inch center section with standard integral trim or the heavy-duty offshore swivel/transom-bracket assembly with single-ram trim. The new 1.75:1 Torque Master gearcase with dual water pickups is offered with the standard package. The 1.62:1 Sport Master gearcase is offered with the offshore package.
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N7480 County Road UU
Fond du Lac, WI 54935