Specification 2024 Mercury 400 Verado 2025 Mercury 450R
Manufacturer Mercury Mercury
Model 400 Verado 450R
Year 2024 2025
Horsepower 400 HP 450 HP
Engine Type 4-stroke 4-stroke
Cylinders 6 8
Displacement 5,337 cc 5,559 cc
Bore × Stroke 107.3 × 98.4 mm 100.6 × 87.5 mm
RPM Range 5,500–6,500 RPM 5,500–6,300 RPM
Fuel System DOHC-EFI EFI
Fuel Type Regular Regular
Weight 354 kg (779 lbs) 400 kg (883 lbs)
Starting System Electric Electric
Steering Remote Remote
Shaft Lengths XL/XXL XL/XXL
Gear Ratio 1.75:1 1.85:1
Alternator 90 A 90 A
Trim & Tilt Power Trim/Tilt Power Trim/Tilt
Prop Output 256.52 kW 288.59 kW
Recommended Boat 24–36 ft 26–40 ft
MSRP $64,130 $67,950
Better / Advantage Lower / Disadvantage Equal / Neutral

2024 Mercury 400 Verado vs 2025 Mercury 450R — Which Is Better?

Choosing between the 2024 Mercury 400 Verado and the 2025 Mercury 450R comes down to your specific boating needs and priorities.

The 2024 Mercury 400 Verado (2024) is a 400hp 4-stroke outboard from Mercury, weighing 354 kg (779 lbs). Its electronic fuel injection delivers reliable starts and improved fuel economy compared to carbureted alternatives. Power trim and tilt makes it easy to adjust on the water.

The 2025 Mercury 450R offers 450hp with 4-stroke technology, tipping the scales at 400 kg (883 lbs). With a larger displacement of 5,559 cc, it can deliver more torque at lower RPMs.

Note that the 2025 Mercury 450R delivers 13% more horsepower, making it better suited for larger boats, water sports, or situations where you need extra speed and power.

At 354 kg (779 lbs), the 2024 Mercury 400 Verado is the lighter option — an important consideration for smaller boats, portability, and overall fuel efficiency.

Both motors are solid choices in the 400 HP+ class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.