Description

2020 Mercury 450R outboard engine

Mercury 450R Outboard – Extreme Offshore Power for Alaska Waters

The Mercury 450R Outboard Engine is built for boaters who demand uncompromising power, durability, and control in Alaska’s harsh saltwater and cold-water conditions. Designed by Mercury Racing, the 450R delivers exceptional acceleration and top-end performance while maintaining reliability for both commercial operators and high-performance recreational users.

Its advanced four-stroke racing platform provides smooth operation, efficient fuel delivery, and superior corrosion resistance—ideal for offshore fishing, transport, and performance boating in freezing temperatures. With a reinforced midsection and precision engineering, the Mercury 450R is trusted for long hours, heavy loads, and extreme environments common across Alaskan waterways.

Key Specifications

• Horsepower: 450 HP

• Fuel Type: Gasoline

• Engine Type: Four-Stroke Racing Outboard

• Engine Displacement: 4.6 Liters (4600 cc)

• Cylinders: V8

• Stroke Type: 4-Stroke

• Stroke: DOHC, 4 valves per cylinder

• Start Kit: Electric Start

• Shaft Length: Available in 20″ and 25″ options

Why It’s Ideal for Alaska

• Engineered for saltwater corrosion resistance

• Reliable cold-start performance

• High torque for heavy commercial loads

• Proven durability for offshore and rough-water use