300 Pro FourStroke

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.

 

 

 

Performance

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.

 

Experience

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, whi

ch 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.

 

Reliability

Gearcase Durability

Mercury Marine’s commitment to testing and continual produ

ct 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 c

hoice 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

HP/Kw @ Prop 300 / 224
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″ (1.75:1)
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

Pro FourStroke Engine Tests

Test Date Title Type Engine HP Range Last Updated
08/2012 250 hp Pro FourStroke – Avalon 2625 Windjammer Elite – enertia Verado 250-300 Pro FourStroke 10/08/2012
08/2012 250 hp Pro FourStroke – Avalon Excalibur Elite 2725 – Enertia Verado 250-300 Pro FourStroke 10/08/2012
08/2011 250 hp Pro FourStroke – Crest 230 Classic SLR Verado 250-300 Pro FourStroke 01/04/2012
08/2011 250 hp Pro FourStroke – Crest 250 Caribbean SLR – Enertia 15 Verado 250-300 Pro FourStroke 01/04/2012
08/2011 250 hp Pro FourStroke – Crest 250 Caribbean SLR – Enertia 16 Verado 250-300 Pro FourStroke 01/04/2012
08/2012 250 hp Pro FourStroke – Premier Marine 250 Grand Majestic PTX – Enertia Verado 250-300 Pro FourStroke 10/10/2012
08/2012 250 hp Pro FourStroke – Tahoe 2625 Vista Elite – Enertia 15 1/8″ Verado 250-300 Pro FourStroke 10/09/2012
08/2012 250 hp Pro FourStroke – Tahoe Grand Tahoe Elite 2725 – Enertia Verado 250-300 Pro FourStroke 10/09/2012
09/2010 250 Pro FourStroke – Ranger 620 VS – Revolution 4 Verado 250-300 Pro FourStroke 03/10/2011
09/2010 250 Pro FourStroke – Ranger 620 VS – Tempest Plus Verado 250-300 Pro FourStroke 03/07/2011
06/2012 300 hp Pro FourStroke/9.9 ProKicker – Crestliner 2050 Raptor – Tempest Plus Verado 250-300 Pro FourStroke 09/12/2012
08/2012 300 hp Pro FourStroke – Avalon Ambassador Elite – Enertia Verado 250-300 Pro FourStroke 10/08/2012
01/2012 300 hp Pro FourStroke – Chris Craft Catalina 26 Verado 250-300 Pro FourStroke 02/06/2012
04/2012 300 hp Pro FourStroke – Crest 250 Savannah – Enertia Verado 250-300 Pro FourStroke 05/07/2012
06/2012 300 hp Pro FourStroke – Crestliner 2150 Sport Fish SST – Tempest Plus Verado 250-300 Pro FourStroke 09/12/2012
07/2012 300 hp Pro FourStroke – Harris FloteBote Grand Mariner 230 P3 – Enertia Verado 250-300 Pro FourStroke 09/12/2012
02/2012 300 hp Pro FourStroke – Harris Flotebote Grand Mariner 250 SL Verado 250-300 Pro FourStroke 02/15/2012
08/2012 300 hp Pro FourStroke – Premier Marine 290 Grand Entertainer – Enertia 16″ Verado 250-300 Pro FourStroke 10/09/2012
05/2012 300 hp Pro FourStroke – ShearWater 25LTZ – Tempest Plus Verado 250-300 Pro FourStroke 10/08/2012
08/2012 300 hp Pro FourStroke – Tahoe Vision Elite – Enertia Verado 250-300 Pro FourStroke 10/09/2012
11/2011 300 Pro FourStroke – Premier 275 Intrigue Verado 250-300 Pro FourStroke 02/21/2012