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4.5L MPI 250 Alpha

new 4.5L Mercruiser engine Picture of 4.5L MPI 250 Alpha
MERCURY MERCRUISER New 4.5L Alpha Engine Only. Y pipe, intermediate elbow, drive and transom sold separately. 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.
Availability: In stock
Manufacturer part number: 40450069A to 40450074A
Normally Ships: In stock - Same business day
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SPECIFICATIONS

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 s

    SPECIFICATIONS

    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 s
      Products specifications
      Propshaft Horsepower 250
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