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
Extraordinary engineering for extraordinary speed.
When you're feeding your need for speed, Mercury Pro XS engines will get you there faster. Engineered to meet the demands for high speeds on fresh or salt water, these high-performance motors deliver a winning combination of power, acceleration, durability, and fuel efficiency.
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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.
Pro XS Performance Data
Smooth & Quiet
Optimized from the cowl to the mounts to minimize noise and vibration, Pro XS outboards won’t wear you out on long runs to faraway fishing holes.
Light & Powerful
Mercury 115 and 150hp Pro XS outboards boast the highest displacement and lowest weight among high-output engines in their class, for unmatched hole shot on a wide variety of boats.
Quick & Fast
No other competitive outboard can match the top speed and acceleration of a Mercury 115 or 150hp Pro XS outboard.
SmartCraft® The Power to Do More
SmartCraft® is a full suite of digital technologies, fully integrated and totally coordinated. Gauges, sensors, vessel systems, computer-controlled features – one total package, one high level of control. Make your boating experience easier, safer and a lot more enjoyable.
Engine Specifications by Horsepower
Repower Your Boat with a New Outboard
It’s simple. When you repower your boat with a new Mercury outboard, you get to keep making memories in a boat you love, while enjoying the reliability, performance and efficiency that a new engine brings.
Warranty and Maintenance
Warranty Coverage
Mercury makes world-class marine products backed by world-class warranties.
Maintenance
Mercury Pro XS outboards are thoughtfully designed to minimize maintenance and ensure you get the most from your time on the water.
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Resources for you
Brochures
Take a deeper dive into what makes Mercury Pro XS outboards stand apart with detailed information on each engine and the features that make them unique.
Learn More About Pro XS Outboards at a Mercury Dealer
No one understands marine performance like your local Mercury Authorized Dealer. Contact a dealer today to learn how you could power your adventures with a Pro XS outboard.