Mercury 200hp 4.5L outboard engine.
Mercury 4.5L 200HP Outboard Engine
A 4.5 liter 250 horsepower engine.
MerCruiser 4.5L V6 250hp engine.
Boat engine compartment with 250 hp engine.
Car engine with 4.5L 250 badge.

4.5L V-6 Sterndrive

$11,007.00 – $14,479.00

Change the rules? How about the whole game? Take the V-6 concept apart and put it back to together again. Make it specific to marine applications. With more power and less weight. More displacement and less fuel. More throttle with less noise and vibration. One performance-driven innovation after another, wrapped up in the smoothest driving experience on the water. More than an engine. A revolution!

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Description

  • Power-to-weight in perfect balance for big-time performance, speed and acceleration. V-8 power in a V-6 package.
  • Redesigned long-runner intake manifold draws in more air for big boost in torque.
  • A comprehensive sound and vibration reduction plan including rear facing throttle body, anti-whistle throttle plate, redesigned engine cover, lightweight flywheel and super-quiet fuel-supply module.
  • Simple, easy maintenance, including color-coded maintenance points.
  • Adaptive Speed Control automatically dials in rpm to match load and water conditions and delivers an intuitive boat control and sportier feel.

Additional information

Horsepower

200, 250
Seacore

NO, YES

Full Product Specs 250 HP

HP / kW
  • 250 / 186
Maximum RPM (WOT)
  • 4800-5200
Engine type
  • V6, 2-valve/cylinder pushrod
Displacement (L)
  • 4.5
Displacement (CID/L)
  • 275 / 4.5
Bore and stroke
  • 4.0 x 3.6″ / 102 x 92 mm
Recommended fuel
  • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Fuel ethanol tolerance
  • Up to 10%
Fuel requirement
  • 90 RON 10% Ethanol Maximum
  • Unleaded Regular 87 Octane Minimum (R+M/2)
Engine control system
  • Mechanical Shifting with Optional SmartCraft DTS
  • Standard SmartCraft with Electronic Throttle Control
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
  • Air Actuated “Season Extender” (Bravo)
  • Easy Drain “Season Extender” (Alpha)
Exhaust system
  • Through prop
Cooling system
  • Water cooled with thermostat; FWC available as factory option (Alpha) and packaged with SeaCore Drive (Bravo)
Lubrication system
  • Integrated wet sump
Recommended oil
  • NMMA Certified FCW 25W-40 Synthetic Blend
Engine guardian system
  • SmartCraft Engine Guardian
Dimensions (L x W x H)
  • 28 x 30 x 22″ / 696 x 740 x 559 mm
Weight (engine only)
  • 761 lbs / 345 kg
Compatible drives
  • Alpha
  • Bravo One
  • Bravo Three
  • Bravo Two

Full Product Specs 200 HP

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
Recommended fuel
  • Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum
Fuel ethanol tolerance
  • Up to 10%
Fuel requirement
  • 90 RON 10% Ethanol Maximum
  • Unleaded Regular 87 Octane Minimum (R+M/2)
Engine control system
  • Mechanical Shifting with Optional SmartCraft DTS
  • Standard SmartCraft with Electronic Throttle Control
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
Engine guardian system
  • SmartCraft Engine Guardian
Dimensions (L x W x H)
  • 28 x 30 x 22″ / 696 x 740 x 559 mm
Weight (engine only)
  • 761 lbs / 345 kg
Compatible drives
  • Alpha

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