Ultimate BoatingTohatsu MFS25

Ultimate Boating aggregates and compares public technical data (manufacturer brochures and spec sheets) to help boaters objectively compare engines, propellers, systems and boats.

Independent: no display ads, no sponsored content, no paid rankings.

Privacy-first: self-hosted, cookieless visitor analytics (Matomo), no third-party trackers, no cookie banner.

The site is funded by affiliate commissions (Amazon, Click&Boat): this does not affect prices or comparisons.

Published by RDI (Sébastien Sauteraud), Romans-sur-Isère (France).

Powered by rdiconnect.tech

Contact us

Tohatsu

Tohatsu MFS25: specifications

The Tohatsu MFS25 is an outboard rated at 25 hp with inline three-cylinder architecture.

Head to head with its direct rivals ↓

Key figures

Power
25hp
Dry weight
58kg
Displacement
500cm³
Alternator output
17.5A
Indicative price
4,593
Maximum warranty
7years

Sources and technical context

Document year: 2026.

Manufacturer's official documentation. The original document link has not yet been recorded for this page.

Notes and conditions (FR)

Manufacturer's notes (in French)

Listino Tohatsu Italia 2026. Indicative source price: request a quote for your country, date and required configuration.

Technical specifications

Block & combustion

ArchitectureL3
Power (kW)18.4 kW
Cylinders3
Cycle4-stroke
Displacement500 cm³
Bore × stroke61 × 57 mm
Compression ration/a
Max rpm5000–6000 rpm
Specific output50 hp/L
Fuel systemEFI sans batterie
Min. fuelRON 91 (87 AKI)

Transmission & gearcase

Gear ratio2,17:1
Propeller configurationRotation standard
Counter-rotating dual propn/a
2-speed gearboxNo
Counter-rotating versionNo
Available shafts15"/20"

Weight & footprint

Dry weight (transom load)58 kg (S (15"))
Power-to-weight ratio0.43 hp/kg

Electrical charging

Alternator (max)17.5 A
Amps per horsepower0.70 A/hp

Control & integration

Digital throttle & shift (DBW)No
ControlCommande à distance ou barre franche
Steeringn/a
Power steeringNo
Docking joystickNo
GPS position holdNo
Direct injectionNo
VTEC (variable timing)No

Cost & warranty

Public price4,593 €
Cost per horsepower184 €/hp
Base warranty7 years
Maximum warranty (conditional)7 years

Operation & compliance

Emissions standardEPA · CARB

Head to head with its direct rivals

Prices, warranties and test conditions are not harmonised. They remain visible but do not determine strengths or rankings.

Side-by-side figures for the MFS25 against Honda BF25 · Mercury FourStroke 25 EFI · Selva Amberjack 25 EFI, on the criteria that drive the purchase.

CriterionMFS25Honda BF25Mercury FourStroke 25 EFISelva Amberjack 25 EFI
Power hp25252525
Dry weight kg5870.56056
Power / weight hp/kg0.430.350.420.45
Alternator output A18101716
Cost per hp €/hp184n/a221190
Base warranty years7325

An index requires at least two criteria documented for every compared engine. “n/a” means the available data cannot assess this use; it is not a poor rating.

How we compare →

Other Tohatsu engines

Comparable-power engines, all brands