ID # 33471195

Mercury MerCruiser 4.5L 250hp ECT

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Overview

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

Mercury MerCruiser 4.5L 250hp ECT 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.

Mercury MerCruiser 4.5L 250hp ECT 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.

Mercury MerCruiser 4.5L 250hp ECT 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.

Mercury MerCruiser 4.5L 250hp ECT 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