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. A new V6 engine that delivers V8 performance in a compact lightweight package.
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 aluminum and composites everywhere else.
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 anodizing system and closed-cooling circuit is available with the Bravo® drive.
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.
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.
|Model||4.5L MPI 200 HP (Sterndrive)|
|Engine Type||4.5L MPI 200 HP (Sterndrive)|
|HP / kW||200 / 149|
|Maximum RPM (WOT)||4400 – 4800|
|Engine type||V6, 2-valve/cylinder pushrod|
|Bore and stroke||4.0 x 3.6″ / 102 x 92 mm|
|Fuel requirement||Unleaded 91 RON Minimum|
|Fuel delivery system||Computer controlled Multi-Port Electronic Fuel Injection (MPI)|
|Air induction||Performance-Tuned Scroll Intake Manifold|
|Ignition||SmartCraft PCM 112 Digital Inductive|
|Alternator amp / Watt||70 amp / 882 watt (Belt-Driven)|
|Water drain system||Easy Drain “Season Extender”|
|Exhaust system||Through prop|
|Cooling system||Water cooled with thermostat; FWC available as factory option|
|Lubrication system||Integrated wet sump|
|Recommended oil||NMMA Certified FCW 25W-40 Synthetic Blend|
|Dimensions (L x W x H)||28 x 30 x 22″ / 696 x 740 x 559 mm|
|Weight (engine only)||756 lbs / 343 kg|