Pro XS 175 - 300hp
A New Era in Performance

Mercury Pro XS® outboards are engineered for those boaters who demand ultimate performance – anglers competing on the highly competitive tournament trails and powerboaters who simply crave speed and acceleration. Exclusive components and tuning extract every ounce of performance from each Pro XS model so you can take it to the limit.

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TorqueMaster Gearcase
The lightweight TorqueMaster gearcase (featured on select V8 models) has a 1.75:1 gear ratio and a robust 1.25-inch-diameter prop shaft designed for semi-surfacing, high-speed applications.
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Adaptive Speed Control
Adaptive Speed Control maintains a desired rpm regardless of changes in load or conditions without adjustments to the throttle lever position – a first for the outboard industry.
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Performance-Tuned Exhaust
Exhaust tone has been fine-tuned to provide a brawny performance-inspired sound quality that’s unmistakable on the water yet quieter than competing high-output engines.
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Industry-Exclusive Battery Management Technology
When battery voltage is low, engines will automatically increase idle rpm to boost alternator output and charge batteries to the proper level, protecting batteries from draining while trolling and operating electronic devices.
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Ample Charging Output
FourStroke models feature a robust alternator that delivers 20 amps net of charging power at idle and 30 amps total at wide-open throttle.
Unmatched Power and Speed
The V8 and V6 Pro XS outboards perform like no other, with a dual overhead cam design that delivers instantaneous throttle response and immediate power.
Superior Fuel Economy
Advanced Range Optimisation improves cruise-speed fuel efficiency by automatically adjusting fuel delivery so seamlessly the operator won’t feel or hear it.
Lightweight Heavyweight
4.6L V8 and 3.4L V6 Pro XS outboards offer a combination of ample torque and less weight – ideal for heavier loaded boats.

Engine Specifications by Horsepower

Horsepower
300
250
225
200
175
Engine type
  • V8
  • V8
  • V8
  • V8
  • V6
Displacement (CID/CC)
  • 279 CID
  • 279 CID
  • 279 CID
  • 279 CID
  • 209
Displacement (L)
  • 4.6L
  • 4.6L
  • 4.6L
  • 4.6L
  • 3.4
Cylinder Configuration
  • V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
  • V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
  • V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
  • V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
  • V-6 [64 degree] with Dual Overhead Cam [DOHC] and 24-valves
Full throttle RPM
  • 5600-6200
  • 5600-6200
  • 5600-6200
  • 5600-6200
  • 5400-6000
Alternator amp / Watt
  • 85-amp (1071 Watt) with Idle Charge
  • 85-amp (1071 Watt) with Idle Charge
  • 85-amp (1071 Watt) with Idle Charge
  • 85-amp (1071 Watt) with Idle Charge
  • 85-amp (1071 Watt) with Idle Charge
Starting
  • Electric Start with SmartStart Protection
  • Electric Start with SmartStart Protection
  • Electric Start with SmartStart Protection
  • Electric Start with SmartStart Protection
  • Electric Start with SmartStart Protection
Steering
  • Hydraulic (standard)
  • Power (optional)
  • Big Tiller (optional)
  • Hydraulic (standard)
  • Power (optional)
  • Big Tiller (optional)
  • Hydraulic (standard)
  • Power (optional)
  • Big Tiller (optional)
  • Hydraulic (standard)
  • Power (optional)
  • Big Tiller (optional)
  • Hydraulic (standard)
  • Power (optional)
Shaft length
  • 20" / 508 mm
  • 25" / 635 mm
  • 20" / 508 mm
  • 25" / 635 mm
  • 20" / 508 mm
  • 25" / 635 mm
  • 20" / 508 mm
  • 25" / 635 mm
  • 20" / 508 mm
  • 25" / 635 mm
Gearcase ratio
  • 1.75:1
  • 1.75:1
  • 1.75:1
  • 1.75:1 (TorqueMaster or 5.44"); 1.85:1 (4.8")
  • 1.85:1
Dry weight *Lightest model available
  • 505 lbs / 229 kgs
  • 505 lbs / 229 kgs
  • 505 lbs / 229 kgs
  • 505 lbs / 229 kgs
  • 470 lbs / 213 kgs
Trim system
  • Power trim and tilt
  • Power trim and tilt
  • Power trim and tilt
  • Power trim and tilt
  • Power trim and tilt

Pro XS Advantage

Ultimate Performance: No outboard gets from zero to wide-open quicker than a Mercury Pro XS with 4.6L V8 and 3.4L V6 muscle. This is performance that will rocket your rig out of the hole and to the next hot spot in an instant.

Tournament-Winning Torque: More displacement delivers more torque and Transient Spark technology optimises spark timing to boost that torque during hole shot.

Squeezing Speed from Fuel: Mercury V8 and V6 Pro XS models transform every drop of fuel into performance to deliver excellent economy at cruising speed and wide-open throttl

Smart Charging: A powerful alternator provides net charging output of 20 amps at idle and 85 amps at wide open throttle. Idle Charge battery-management technology automatically increases idle rpm to boost alternator output and recharge low batteries.