MERCURY® MERCRUISER®
4.5L

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.

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.

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 anodizing system and closed-cooling circuit is available.

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.

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.

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.

SPECIFICATIONS

Mercury® MerCruiser®: 4.5L

HP / kW	200 / 149
Maximum RPM (WOT)	4400 - 4800
Engine type	V6, 2-valve/cylinder pushrod
Displacement (L)	4.5
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
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
Compatible drives	Alpha

Important As an authorised MerCruiser dealer we are not able to ship MerCruiser bobtail or engine packages. ENGINES MUST BE FITTED LOCALLY BY AUTHORISED DEALER.