ID # 33471195

Mercury MerCruiser 4.5L 250hp ECT

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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.

Specifications

Model

MerCruiser 4.5L 250hp ECT

Category Name

Engines

Year

2024

Sale Type

New

Manufacturer

Mercury

HP / KW

250 Hp / 184 kW

Engine Type

V6, 2-valve/cylinder pushrod

Oil Sump Volume

4.5 qts

Recommended Oil

NMMA Certified FCW 25W-40 Synthetic Blend

Displacement (L)

4.5

Recommended Fuel

Unleaded Regular 87 Octane Minimum (R+M/2) or 90 RON 10% Ethanol Maximum

Maximum RPM (WOT)

4800-5200

Alternator Amp / Watt

70 amp / 882 watt (Belt-Driven)

features

Advanced MPI

The multi-point electronic fuel injection system fine-tunes the air-to-fuel ratio for the ideal combination of power and efficiency.

Adaptive Speed Control

The Adaptive Speed Control feature lets you maintain engine rpm despite changes in load or conditions. Climbing large swells is easier. Cruising at low speeds is smoother. Carving out tight turns is effortless.

SeaCore

Take on the toughest marine conditions with the available SeaCore® system. It’s an entire package of durable, corrosion-fighting technology that offers an extraordinary level of protection, including hard-coat anodizing on the drive, stainless-steel fasteners and components, and a closed cooling system.

Ample Charging Output

A powerful alternator delivers 70 amps of charging power at wide-open throttle – perfect for keeping onboard electronics running long into the fun.

Engine Guardian

Explore farther with confidence knowing that the Engine Guardian system is at work. It monitors the engine and, if necessary, can adjust engine functions to help get you home safely.

mercruiser performance

Smooth & Quiet

From the mounts to the throttle system, we’ve fine-tuned the 4.5L engine to minimize noise and vibration – all for an exceptional driving experience.

Exceptional Fuel Economy

Electronic fuel injection optimizes efficiency so you can get maximum fun from every fill-up. Plus, MerCruiser engines deliver full performance on 87-octane fuel for additional savings at the pump.

Exciting Speeds

Don’t waste a second on the water. With V6 muscle and performance, the 4.5L engine will get you where you want to go fast – and you’ll have a whole lot of fun on the way.

mercruiser advantage

Noise Reduction

Hear your friends and family talk. Hear yourself think. Enjoy your time on the water. A MerCruiser engine is still as powerful as ever. Thanks to sound-dampening advancements, it’s just not so loud about it.

Performance

High-displacement engines and multi-port fuel-injection systems maximize performance from every drop of fuel. You’ll enjoy quick acceleration, instantly responsive power and total fun.

Effortless Ownership

A redesigned service access has simplified what was once a hassle, bringing all service points to a single easily reachable location, color-coded for owner-friendly maintenance.

Durability

Through grueling endurance test cycles – in the lab and on the water – Mercury has refined every MerCruiser engine into an unflinching workhorse, built with better alloys and superior paints that can stand up to the harshest conditions.

smartcraft

Digital Throttle & Shift

Digital Throttle & Shift (DTS) controls deliver silky-smooth shifting and instant throttle response, with zero hesitation. Integrated controls for select SmartCraft technologies make boating even easier.

Joystick Piloting for Sterndrives

Intuitive joystick controls provide digital anchoring at the touch of a button and 360 ̊ maneuverability in tight spaces when you need it most. In open water, the Auto Heading and Route features let you lock in your course for simplified control.

VesselView

VesselView® brings your engine’s stats and digital controls to your fingertips. For convenient access, VesselView Mobile® displays real-time engine data on mobile devices. VesselView Link and SmartCraft Connect integrate performance data onto compatible displays from Lowrance®, Simrad®, Garmin® and Raymarine.

Active Trim

With just a push of a button, Active Trim automatically optimizes trim levels, adapting on the fly to turns, hole shots and water conditions to ensure smooth, efficient trips.

literature

Name	Link
Mercury Brand Brochure	Download
SmartCraft Brochure	Download

Documents