MERCRUISER

The Next Generation

Featuring a host of engineering innovations, the 4.5L series establishes new standards for power-to-weight ratio, driver experience, acceleration, durability, and ease of maintenance.

Features

Built for Marine.

Designing a V-6 block solely for marine use allows Mercury to build the 4.5L with the ultimate protection system, using cast-iron componentry where the engine intersects with seawater, and using corrosion-resistant aluminium and composites everywhere else.

Powerful Performer.

Thanks to its new, long-runner scroll intake manifold which draws in more air and converts it into additional torque, the 4.5L delivers a ground-breaking power-to-weight ratio and gives you V-8 power in a V-6 package.

Smooth & Quiet.

The 4.5L’s newly designed rear-facing throttle body, anti-whistle throttle plate, engine cover and mounts, lightweight flywheel, fuel-supply module, and structural oil pan all work together to deliver a superior idle, smoothness and low vibration. Resulting in an exceptional driving experience.

Corrosion Protection.

The MercFusion Paint System creates an outer seal against the elements, while MerCathode® provides automatic protection against galvanic corrosion. For maximum defense against saltwater effects, the SeaCore® industrial hardcoat anodising system and closed-cooling circuit is available.

Sporty Handling.

The 4.5L comes standard with Adaptive Speed Control, which automatically maintains engine rpm regardless of load or water conditions. The result is increased throttle response and a sporty feel.

MERCRUISER Advantage

Built for marine.

Mercury MerCruiser engines and drive systems are designed, tested, and built exclusively for the marine environment. That translates to best-in-class reliability, dependability, and long-lasting performance. Patented metallurgy technology. State-of-the-art electronics. Robust manufacturing. Grueling lab, endurance, and open-water testing. What goes into a Mercury MerCruiser determines what you get out. Easy maintenance, low cost of ownership, and true peace of mind.

Others can't compare.

Mercury MerCruiser has a heritage of durability and performance that others can only dream about. Nothing compares to the efficiency and well-mannered power of a Mercury MerCruiser. Ultra-responsive acceleration. Impressive maneuverability. Superior durability for unmatched performance. And the large displacement of a Mercury MerCruiser means it will barely break a sweat, all while being one of the easiest to maintain engines you'll ever own.

Out in front where it counts.

Electronic controls that make boating simpler than ever. Engine-monitoring systems that eliminate worries. Emissions Control Technology that makes you feel good about running cleaner with less environmental impact. Mercury MerCruiser leads the industry in innovations that make boating better. For you and the world around you.