Specification 2024 Tohatsu MFS3.5CS 2025 Mercury 3.5 FourStroke
Manufacturer Tohatsu Mercury
Model MFS3.5CS 3.5 FourStroke
Year 2024 2025
Horsepower 4 HP 4 HP
Engine Type 4-stroke 4-stroke
Cylinders 1 1
Displacement 125 cc 129 cc
Bore × Stroke 55.4 × 51.8 mm 57.4 × 49.9 mm
RPM Range 4,600–5,500 RPM 4,700–5,800 RPM
Fuel System Carbureted Carbureted
Fuel Type Regular Regular
Weight 27 kg (60 lbs) 27 kg (59 lbs)
Starting System Manual Electric/Manual
Steering Tiller Tiller
Shaft Lengths S/L S
Gear Ratio 2.08:1 2.15:1
Alternator N/A N/A
Trim & Tilt Manual Manual
Prop Output 2.42 kW 2.48 kW
Recommended Boat 8–12 ft 8–12 ft
MSRP $1,460 $1,790
Better / Advantage Lower / Disadvantage Equal / Neutral

2024 Tohatsu MFS3.5CS vs 2025 Mercury 3.5 FourStroke — Which Is Better?

Choosing between the 2024 Tohatsu MFS3.5CS and the 2025 Mercury 3.5 FourStroke comes down to your specific boating needs and priorities.

The 2024 Tohatsu MFS3.5CS (2024) is a 4hp 4-stroke outboard from Tohatsu, weighing 27 kg (60 lbs).

The 2025 Mercury 3.5 FourStroke offers 4hp with 4-stroke technology, tipping the scales at 27 kg (59 lbs). With a larger displacement of 129 cc, it can deliver more torque at lower RPMs.

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.