Standard Features


No direct injection engine has more experience, testing, or success under its belt than Mercury OptiMax. It's not surprising that OptiMax repeatedly leads every direct injection category – including power, fuel efficiency, reliability, and versatility. It all adds up to a complete line of power that delivers more, and delivers it better. OptiMax remains the best value on the water and a top choice of boaters


Model Year
250CXL OptiMax


Engine Type
250 hp (184 kW)
3.0 l
5,500 - 6,000 full throttle RPM
Fuel Induction
2-stage Direct Fuel Injection (DFI)


Gear Ratio
Gear Shift
Remote mechanical


60A, 756W (belt-driven)


Shaft Length
25 in. (635 mm)
505 lbs. (229 kg)


Big Tiller compatible
Trim System
Power Trim and Tilt
Low oil level, overheat, over-rev, SmartCraft Engine Guardian

Standard Features

Ultimate Efficiency
 The innovative OptiMax DI system delivers the ultimate in efficiency, squeezing more miles and performance from every drop of fuel. The exclusive deflector-shaped pistons and combustion chambers enhance fuel economy and lower emissions by efficiently directing the fuel / air charge to the spark plug. The OptiMax Air Compressor provides a steady charge of cooled air for maximum combustion efficiency.  
Superior Durability
 OptiMax’s durable gearcase features a heavy-duty prop shaft and Mercury-patented dual water pickups on the front end of the torpedo for a constant flow of cooling water. It is specifically designed to give you impeccable handling and incredible top speeds. Dome-Shaped Piston Heads direct the fuel-and-air charge to the spark plug more efficiently, providing outstanding durability along with excellent running quality.  
Long-Lasting Stainless
 OptiMax is built with more stainless steel and corrosion-resistant components, which translates to saltwater durability, longer intervals between maintenance, and lower cost of ownership. In addition, our lower-pressure direct-injection system also provides superior component durability and longevity.  
Powerful and Smooth
 The OptiMax Two-Stage Direct Injection System provides a constant supply of atomized fuel and air while the Vapor Separator Tank (VST) ensures a constant supply of liquid fuel for the injection process. The result is unmatched throttle response, instant starting, and smooth performance.  
Light and Fast
 The V6 design is slim and lightweight making it a great choice for almost any type of boat. It consistently outperforms other DI engines in holeshot, mid-range acceleration and top-end speed.  
Leading Gearcase Technology
 No other marine engine company has more knowledge about hydrodynamics and gearcase design than Mercury. We have the right gearcase configuration and technology to match any boating application. Our designs result in less drag – giving you better handling and performance.  
A Prop For Every Purpose
 No one offers a wider variety of propellers than Mercury Marine. From our four-blade, stainless steel Trophy Plus to the revolutionary Enertia, Mercury makes a prop that will maximize your boating enjoyment. Visit the Mercury Prop Selector to choose the prop that’s right for you.  
*Price, if shown, is Manufacturer's Suggested Retail Price (MSRP) and does not include government fees, taxes, dealer freight/preparation, dealer document preparation charges or any finance charges (if applicable). MSRP and/or final actual sales price will vary depending on options or accessories selected.