2025 Mercury 450R
450 HP 4-stroke outboard motor by Mercury (2025)
Full Specifications
| Manufacturer | Mercury |
|---|---|
| Model Number | 450R |
| Year | 2025 |
| Horsepower | 450 HP |
| HP Category | 400 HP+ |
| Engine Type | 4-stroke |
| Cylinders | 8 |
| Displacement | 5,559 cc |
| Bore × Stroke | 100.6 × 87.5 mm |
| RPM Range | 5,500–6,300 RPM |
| Fuel System | EFI |
| Fuel Type | Regular |
| Weight | 400 kg (883 lbs) |
| Starting System | Electric |
| Steering | Remote |
| Shaft Lengths | XL/XXL |
| Gear Ratio | 1.85:1 |
| Alternator | 90 A |
| Trim & Tilt | Power Trim/Tilt |
| Prop Shaft Output | 288.59 kW |
| Recommended Boat | 26–40 ft |
| MSRP | $67,950 |
About the 2025 Mercury 450R
The 2025 Mercury 450R is a 450-horsepower four-stroke outboard motor featuring electronic fuel injection and weighing 400.4 kg. Built with Mercury's advanced engineering, this 8-cylinder engine is well suited for tournament boats and large sport fishers up to 40 feet. It comes equipped with excellent fuel economy. Designed to deliver years of trouble-free service on the water.