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.
4.5L 200hp ECT
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
4.5L 250 ECT
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 oilNMMA 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