Specification 2025 Mercury 3.5 FourStroke 2025 Tohatsu MFS3.5CS
Manufacturer Mercury Tohatsu
Model 3.5 FourStroke MFS3.5CS
Year 2025 2025
Horsepower 4 HP 4 HP
Engine Type 4-stroke 4-stroke
Cylinders 1 1
Displacement 129 cc 118 cc
Bore × Stroke 57.4 × 49.9 mm 54.0 × 51.5 mm
RPM Range 4,700–5,800 RPM 4,600–5,500 RPM
Fuel System Carbureted Carbureted
Fuel Type Regular Regular
Weight 27 kg (59 lbs) 27 kg (58 lbs)
Starting System Electric/Manual Electric/Manual
Steering Tiller Tiller
Shaft Lengths S S/L
Gear Ratio 2.15:1 2.15:1
Alternator N/A N/A
Trim & Tilt Manual Manual
Prop Output 2.48 kW 2.48 kW
Recommended Boat 8–12 ft 8–12 ft
MSRP $1,790 $1,510
Better / Advantage Lower / Disadvantage Equal / Neutral

2025 Mercury 3.5 FourStroke vs 2025 Tohatsu MFS3.5CS — Which Is Better?

Choosing between the 2025 Mercury 3.5 FourStroke and the 2025 Tohatsu MFS3.5CS comes down to your specific boating needs and priorities.

The 2025 Mercury 3.5 FourStroke (2025) is a 4hp 4-stroke outboard from Mercury, weighing 27 kg (59 lbs).

The 2025 Tohatsu MFS3.5CS offers 4hp with 4-stroke technology, tipping the scales at 27 kg (58 lbs). Its more compact 118 cc displacement keeps weight down while maintaining efficiency.

Both motors are solid choices in the 4 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.