Inboard

Outboard

Sterndrives

Sterndrive Engines

Surface Drives

Pod Drives

Sail Drives

Generators

Transmissions

Improved durability and response - Only OptiMax Pro XS features Carbon Fiber Reeds to control airflow into the engine crankcase. Carbon fiber reeds produce improved performance and efficiency because they are more durable and responsive than stainless steel or other fiber materials.

More horsepower - The Pro XS offers a Higher Wide-Open-Throttle RPM Operating Range, giving you more propeller options to maximize the performance of your boat.

Tougher gearcase - The durable Torque Master Gearcase (225/250 Pro XS) features a heavy-duty propshaft and Mercury-patented dual water pickups on the front end of the torpedo for a constant flow of cooling water. The asymmetrical skeg delivers superior handling by countering the torque created by prop rotation.

Precise high-speed handling - Controlled handling at all speeds is essential, so we outfitted the 250 Pro XS with Solid Billet Aluminum Mounts to keep the engine from turning or twisting under high torque (20-inch models only).

Excellent efficiency - Exclusive Dome-Shaped Pistons efficiently direct the fuel/air charge to the spark plug, producing excellent running quality, fuel economy and low emissions.

Superior Performance - The OptiMax Two-Stage Direct Injection System produces consistent performance and unmatched throttle response by providing a constant supply of atomized fuel and air.