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An unrivaled combination of speed, fuel economy and low cost of keeping the engine in your property. Ideal for various types of recreational fishing boats and fast bass fishing boats.

Leader in accelerations
No outboard is quicker to launch from a standstill to full power than a Mercury Pro XS, thanks to its peppy new 4.6-liter V-8 and 3.4-liter V-6 engines. This performance will plan the boat effortlessly and take you to the next point in record time. These engines feature high displacement and performance design, which comes down to the block, high "breathing" twin overhead cam heads, as well as
long intake pipes, for immediate response to the throttle regardless of revs.

The larger displacement and new Transient Spark system, as well as the shorter 1.75:1 gear ratio on the leg, dramatically increase torque output on the compact 1.25-inch propeller shaft, which is designed for near water surface operation and high speed applications. The specialized The specialized settings help the engine touch 6200 rpm, allowing
flexibility of choices in mounted propellers.

Drawing speed from fuel
Mercury's V-8 and V-6 ProXS engines turn every drop of fuel into performance, delivering excellent economy at cruising speeds and full power. Closed-loop range optimization (ARO) settings offer precise control of the air-fuel mixture for optimum economy and performance.

Plenty of current
An all-powerful alternator provides (for consumption only – net price) a current of 20 Amps at idle and 85 Amps total at full power. The Idle Charge management technology recognizes the discharged batteries due to consumption, automatically increasing the idle speed to produce more current and charge the batteries to the intended levels.


The engine cover stays in place
For easy checking of the engine oil level and periodic topping up, simply open the handy and watertight maintenance hatch on the top of the engine cover. Even smarter, the electronic oil level detection system (optional) with a special sensor automatically warns you of any low oil level during the process
engine start.

 

Characteristics

HP / kW
  • 300 / 224
Engine type
  • V8
MidSection
  • Conventional MidSection
Displacement (CID/CC)
  • 279 CID
Displacement (L)
  • 4.6L
Cylinder Configuration
  • V-8 [64 degree] with Dual Overhead Cam [DOHC] and 32-valves
Full throttle RPM
  • 5600-6200
Air induction
  • Performance-Tuned Long-Runner Intake Manifold
Fuel induction system
  • Electronic Fuel Injection (EFI) Computer Controlled with Advanced Range Optimization
Alternator amp / Watt
  • 85-amp (1071 Watt) with Idle Charge