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4.5L Bobtail

4.5L Bobtail

MERCURY® 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.

    • HP / kW 250 / 186
    • Maximum RPM (WOT) 4800-5200
    • Engine type V6, 2-valve/cylinder pushrod
    • Displacement (L) 4.5
    • Bore and stroke 4.0 x 3.6" / 102 x 92 mm
    • Fuel requirement 90 RON 10%
    • Ethanol Maximum Unleaded Regular 87 Octane Minimum (R+M/2)
    • 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
    • Compatible drives Alpha Bravo One Bravo Three Bravo Two