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Pro FourStroke 250

Part Number 767
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Pro FourStroke 250
Pro FourStroke 250
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Tournament Pro.
Weekend Warrior.

If you're looking for a more advanced, refined, and enjoyable ride from a performance engine, you'll love the Mercury 250 and 300 hp Pro FourStroke. Pleasingly quiet and virtually vibration-free, they rocket out of the hole and provide unequalled mid-range acceleration and top speed - with style, comfort, and state-of-the-art technology.



Supercharged Fishing

The 250 and 300 Pro FourStroke engines are engineered to deliver the enhanced performance (acceleration and top speed) of other Mercury Pro Series engines - including the 250hp OptiMax Pro XS, the most successful and most popular engine on the professional bass circuit. With Verado's supercharged technology delivering unbelievable torque, these FourStrokes provide astounding holeshots and punchy mid-range acceleration, all with outstanding fuel economy.

They're perfect for:

  • Bass boats
  • Multi-species boats
  • Saltwater bay boats
  • Performance pontoon and tritoon boats
Shaft Length Options

Available in 20" and 25" shaft lengths, the 20" shaft option is perfect for 21-foot-plus bass boats, while the 25" option performs handsomely on multi-species or saltwater bay boats.


Fight the Fish, Not the Wheel

Unlike standard hydraulic steering systems, the 250 and 300 hp Pro FourStrokes come with true automotive-like power steering, which eliminates the steering torque you can experience with other outboard engines. That lack of steering torque means less driver fatigue, allowing you to save your energy for finishing and not fighting the wheel.

Digital Throttle & Shift (DTS)

Both the 250 and 300 hp Pro FourStrokes feature Mercury’s exclusive DTS, which provides an unparalleled level of control and precision. This digital technology also enables Mercury to offer the optional DTS Hot Foot, which allows you to transfer throttle control between a foot pedal and the DTS panel control with a simple push of a button – great for keeping both hands on the wheel during high-speed runs.



Gearcase Durability

Mercury Marine's commitment to testing and continual product improvement never stops. The most recent examples of this commitment are found in the new range of Verado gearcase offerings.

The new 5.44-inch gearcase - with strengthened internal components - is a larger, more robust version of the current 4.8-inch gearcase. The 5.44-inch gearcase is best suited for saltwater offshore boats that are run more aggressively, or in rough seas where the propellers frequently ventilate. Additionally, 23-foot or larger single-engine boats that weigh more than 5,000 pounds fully loaded will significantly benefit from this larger gearcase.

Lastly, the current 4.8-inch Verado gearcase continues to be the best choice for single-engine boat applications – including bass, freshwater multispecies, inshore flats and bay and pontoon boats. The 4.8" gearcase has a smaller hydrodynamic profile to ensure top performance on these boat types. This gearcase is available in right-hand rotation exclusively on a 20-inch and 25-inch 225 hp Verados as well as the new 250 and 300 Pro FourStrokes


Run With Confidence

Mercury backs the 250 hp and 300 hp Pro FourStroke with its standard three-year limited factory-backed warranty. With the protection of the Mercury warranty, you can hit the water with confidence that you're fishing the best-made engine on the water.


HP/Kw @ Prop 250 / 186
Full throttle RPM 5800-6400
Cylinder Configuration Inline 6 24-valve direct acting double overhead cam (DOHC)
Displacement (CID / CC) 2.6 / 158
Air Induction System Supercharged with charge air cooling and electronic boost pressure control
Fuel Induction System Sequential multi-port electronic fuel injection (EFI)
Alternator Amp 70 amp / 882 watt (Belt-Driven)
Starting Smart Start Electric
Gearcase Ratio 4.8" (1.85:1)
Steering Electro-hydraulic power steering
Recommended Oil Mercury Verado Oil 25W-50
Recommended Fuel 92 octane recommended; 87 octane compatible (up to 10% ethanol)
Engine Protection Operator Warning System SmartCraft Engine Guardian
Compatible with Smartcraft Digital Technology Yes
Shaft Length L - 20 in (508 mm)
XL - 25 in (635 mm)
Dry Weight * Lightest model available 635lbs / 288kg
CARB Star Rating 2