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FourStroke 250-300hp

3.4L V6 and 4.6L V8
 
 

Reliability, flexibility, power and efficiency – all within your reach. Backed by decades of marine power innovation and product leadership, Mercury V8 and V6 FourStroke outboards deliver legendary performance and forward-thinking technology. FourStroke outboards are built for any body of water and a wide variety of boats.

 

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Intuitive, Innovative Features

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.

Easy to maintain

The exclusive top cowl service door simplifies routine maintenance, letting you check or add engine oil without removing the top cowl. An hour-based maintenance schedule decal is located under the cowl, providing a quick overview of routine maintenance.

Industry-exclusive battery management technology

When needed, the idle charge battery management system works for you by monitoring battery voltage and adjusting engine rpm at idle to boost alternator output.

Smooth and quiet

Featuring a large muffler and a vibration-dampening cowl design, Mercury V8 fourstroke outboards deliver an exceptionally smooth, quiet ride at any speed.

Ample charging output

A powerful alternator delivers 85 amps of charging power at wide-open throttle – perfect for keeping onboard electronics running long into the fun.

Engine Specifications by Horsepower

Scroll within the table below to view specifications for each engine.

Name 250hp
Horsepower 250 HP
Engine type V8
Displacement (CID/CC)
Displacement (L) 4.6L
Cylinder Configuration
Full throttle RPM
Alternator amp / Watt 17 amp / 210 Watts
Starting
Steering
Shaft length
Gearcase ratio
Dry weight *Lightest model available 527 lbs / 239 kgs
Trim system
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