Mercury MerCruiser 4.5L

Call us at 717-859-1121


Call us at... 717-859-1121

LANCASTER COUNTY MARINE, INC.      Route 272 - Akron, PA


New 2018 models in stock now!

Over 1000 Kayaks, Canoes & SUPs IN STOCK!

Over 500 Kayaks, Canoes & SUPs on Display! 717-859-1121

There's Nothing Better Than Being on the Water!

Our family is here to help you make this your best season on the water!

View Page

small portfolio1 small portfolio2 small portfolio3 small portfolio4
themed object
51 Years... Family Owned & Operated - 3 Generations Here to Serve You!
get in touch
Over 1000 Canoes, Kayaks & SUPs In Stock & On Display at... Lancaster County Marine - Route 272, Akron, PA
Call for Pricing & Information - Models In Stock for Immediate Availability - In Store Pickup or Shipping to Any Location!

The Next Generation

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


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.
Sporty Handling
Easy to Maintain
When service is required, maintenance is a snap with the front-mounted drive lube monitor, color-coded maintenance points - including easy-to-reach oil filter and fill - and "how-to" videos that can be accessed via the QR code on the label.
Easy to Maintain
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.
Smooth Quiet
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.
Built for Marine
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 with the Bravo drive.
Corrosion Protection
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.
Powerful Performer


MerCruiser 4.5L
HP / kW
250 / 186
Maximum RPM (WOT)
Engine type
V-6, 2-valve/cylinder pushrod
Displacement (L)
Bore and stroke
4.0 x 3.6" / 102 x 92 mm
Recommended fuel
Unleaded Regular 87 Octane Minimum or 90 RON 10% Ethanol Maximum
Fuel delivery system
Computer controlled Multi-Port Electronic Fuel Injection (MPI)
Air induction
Performance-Tuned Scroll Intake Manifold
SmartCraft PCM 112 Digital Inductive
Alternator amp / Watt
70 amp / 882 watt (Belt-Driven)
Water drain system
Air Actuated "Season Extender"
Exhaust system
Through prop
Cooling system
Water cooled with thermostat; FWC available as factory option packaged with SeaCore Drive
Lubrication system
Integrated wet sump
Recommended oil
Mercury MerCruiser Full-Synthetic Engine Oil, 20W-40, NMMA FC-W rated
Compatible drives
Bravo Three 2.43:1
Bravo Two 2.20:1
Bravo Two 2.20:1
Bravo One 1.65:1
Bravo One 1.50:1
Contact us
Email us for more information


Watersports Expo 2018Kayak Dept Footer
The Weather Network
slide up button