Specification2023 Mercury 20 FourStroke2025 Yamaha F20SMHA
ManufacturerMercuryYamaha
Model20 FourStrokeF20SMHA
Year20232025
Horsepower20 HP20 HP
Engine Type4-stroke4-stroke
Cylinders22
Displacement361 cc340 cc
Bore × Stroke64.2 × 55.8 mm62.2 × 56.0 mm
RPM Range5,200–6,000 RPM5,000–6,000 RPM
Fuel SystemEFIEFI
Fuel TypeRegularRegular
Weight56 kg (124 lbs)55 kg (122 lbs)
Starting SystemElectric/ManualElectric/Manual
SteeringBothRemote
Shaft LengthsS/LS/L
Gear Ratio2.00:12.00:1
Alternator13 A13 A
Trim & TiltManualPower Tilt
Prop Output13.42 kW12.98 kW
Recommended Boat12–17 ft12–17 ft
MSRP$4,580$4,700
Better / Advantage Lower / Disadvantage Equal / Neutral

2023 Mercury 20 FourStroke vs 2025 Yamaha F20SMHA — Which Is Better?

Choosing between the 2023 Mercury 20 FourStroke and the 2025 Yamaha F20SMHA comes down to your specific boating needs and priorities.

The 2023 Mercury 20 FourStroke (2023) is a 20hp 4-stroke outboard from Mercury, weighing 56 kg (124 lbs). Its electronic fuel injection delivers reliable starts and improved fuel economy compared to carbureted alternatives.

The 2025 Yamaha F20SMHA offers 20hp with 4-stroke technology, tipping the scales at 55 kg (122 lbs). Its more compact 340 cc displacement keeps weight down while maintaining efficiency.

Both motors are solid choices in the 20 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.