Specification2024 Tohatsu MFS9.8BS2025 Mercury 9.9 FourStroke
ManufacturerTohatsuMercury
ModelMFS9.8BS9.9 FourStroke
Year20242025
Horsepower10 HP10 HP
Engine Type4-stroke4-stroke
Cylinders22
Displacement229 cc218 cc
Bore × Stroke53.7 × 50.6 mm52.6 × 50.1 mm
RPM Range5,000–6,000 RPM5,000–5,900 RPM
Fuel SystemEFIEFI
Fuel TypeRegularRegular
Weight41 kg (91 lbs)43 kg (94 lbs)
Starting SystemElectric/ManualElectric/Manual
SteeringTillerBoth
Shaft LengthsS/LS/L
Gear Ratio2.15:12.15:1
Alternator6 A6 A
Trim & TiltManualManual
Prop Output6.11 kW6.26 kW
Recommended Boat10–15 ft10–15 ft
MSRP$2,740$3,380
Better / Advantage Lower / Disadvantage Equal / Neutral

2024 Tohatsu MFS9.8BS vs 2025 Mercury 9.9 FourStroke — Which Is Better?

Choosing between the 2024 Tohatsu MFS9.8BS and the 2025 Mercury 9.9 FourStroke comes down to your specific boating needs and priorities.

The 2024 Tohatsu MFS9.8BS (2024) is a 10hp 4-stroke outboard from Tohatsu, weighing 41 kg (91 lbs). Its electronic fuel injection delivers reliable starts and improved fuel economy compared to carbureted alternatives.

The 2025 Mercury 9.9 FourStroke offers 10hp with 4-stroke technology, tipping the scales at 43 kg (94 lbs). Its more compact 218 cc displacement keeps weight down while maintaining efficiency.

Both motors are solid choices in the 9.9 HP class. Your final decision should factor in your boat size, typical use conditions, dealer availability in your area, and budget.