A powerful alternator supports the battery system, helping to ensure you can crank your engine and get back to weigh-in after a long day running onboard electronics.
Pro XS 115-150hp
Inline 4
Mercury Pro XS® outboards possess the ideal combination of lightweight engineering and high displacement to maximize power, torque and overall performance. Whether running compact bass rigs, flats skiffs or multi-species boats – on freshwater or saltwater – Pro XS is unmatched muscle for midsized boats.
Featured Videos
Featured Resources
Learn more about how Mercury makes great days on the water possible.
Intuitive, Innovative Features
Extra Charging Power
Intelligent Power Management
Idle charge battery-management technology automatically increases idle rpm to boost alternator output and recharge low batteries.
Performance-Inspired Gearcase
The 150hp Pro XS gearcase is optimized for fast hole shots, top speeds and enhanced control at wide-open throttle. The 115hp engine can be paired with the Command Thrust (CT) gearcase. It’s designed to turn a larger pop, providing greater acceleration, better handling, awesome maneuverability and superior control.
Tiller Handle
If you run a tiller boat, you can still enjoy the speed and exhilaration of a performance-tuned Pro XS engine. The tiller handles for both the 115 and 150hp engines are available with integrated Troll Control rpm-based speed control. The Big Tiller, available for the 150hp engine, can be paired with Mercury power steering.
Transient Spark Technology
Transient Spark technology (150hp model) electronically adjusts spark plug timing to optimize low-end power. The result is performance you can feel – greater torque, faster hole shots and sensational acceleration.
Adventure Starts at Your Mercury Dealer
Your local Mercury Authorized Dealer is the best place to see and purchase Mercury engines, parts and accessories, and to get expert support when you need it.