Mercury-Mercruiser 4-40450074A 4.5L 250 A FWC EO

4-40450074A 4.5L 250 A FWC EO
This is a genuine Mercury Marine factory OEM part, not aftermarket
Please check our current stock level and order below or use the Contact Us form at the bottom of the page for any questions
Availability: Not in stock - will be transferred from factory
Manufacturer part number: 40450074A
GTIN: 678633083334
Manufacturer: Mercury Marine
$0.00

New fresh water cooled, 4.5L engine from Mercury Marine.

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

New fresh water cooled, 4.5L engine from Mercury Marine.

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
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