Specification2025 Mercury 300 Pro XS2025 Mercury 300 SeaPro
ManufacturerMercuryMercury
Model300 Pro XS300 SeaPro
Year20252025
Horsepower300 HP300 HP
Engine Type4-stroke4-stroke
Cylinders66
Displacement4,169 cc4,044 cc
Bore × Stroke97.6 × 92.9 mm96.6 × 92.0 mm
RPM Range5,500–6,600 RPM5,500–6,600 RPM
Fuel SystemEFIEFI
Fuel TypeRegularRegular
Weight293 kg (646 lbs)310 kg (684 lbs)
Starting SystemElectricElectric
SteeringRemoteRemote
Shaft LengthsXL/XXLXL/XXL
Gear Ratio1.73:11.73:1
Alternator69 A62 A
Trim & TiltPower Trim/TiltPower Trim/Tilt
Prop Output187.92 kW183.44 kW
Recommended Boat22–33 ft22–33 ft
MSRP$46,570$36,760
Better / Advantage Lower / Disadvantage Equal / Neutral

2025 Mercury 300 Pro XS vs 2025 Mercury 300 SeaPro — Which Is Better?

Choosing between the 2025 Mercury 300 Pro XS and the 2025 Mercury 300 SeaPro comes down to your specific boating needs and priorities.

The 2025 Mercury 300 Pro XS (2025) is a 300hp 4-stroke outboard from Mercury, weighing 293 kg (646 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 300 SeaPro offers 300hp with 4-stroke technology, tipping the scales at 310 kg (684 lbs). Its more compact 4,044 cc displacement keeps weight down while maintaining efficiency.

At 293 kg (646 lbs), the 2025 Mercury 300 Pro XS is the lighter option — an important consideration for smaller boats, portability, and overall fuel efficiency.

Both motors are solid choices in the 300 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.