Introducing the lightest weight in its class, EFI 40hp four stroke. Outfitted with a sleek four stroke design, the MFS40 comes in two color options, Beluga White and Aqua Marine Blue, allowing you to choose which color best fits your boat. Starting at just 209 pounds, you will not find a lighter weight motor in its class.

This outboard is equipped with proven technology, including electronic fuel injection (EFI) and digital CD ignition, which provides quick throttle response, excellent fuel economy, and very smooth rides on the water. The MFS40 also has a high output 21 amp alternator for superior battery charging. The adjustable steering friction and trim tab reduces your amount of steering effort, making for an easier and more enjoyable boating experience. Convenience is also covered with the 40hp four stroke’s built-in freshwater flushing system, making routine flushing quick and easy.

The 40hp EFI four stroke not only offers a more powerful ride while using less fuel, but is among the lightest on the water in its class. With proven reliability and performance, the MFS40 is every boater’s versatile choice for work, play or even once-in-a-lifetime memory making!

Tohatsu 4-Stroke Benefits

  • Sleek design with two color options: Aqua Marine Blue and Beluga White
  • Outstanding fuel economy
  • Lightest weight in its class, starting at just 209 lbs.
  • Available in short (15") & long (20") shaft lengths
  • Ultra-low 3 star CARB emission approved
  • 5 Year limited warranty

High Performance and Easy Operation

  • Electronic Fuel Injection
  • Digital CD ignition system for quicker starts
  • High output 21 amp alternator
  • New and improved gear case with lower gear ratio for increased low end torque
  • Adjustable steering friction and trim tab for reducing steering effort
  • Power trim & tilt

Fundamentals for User Convenience and Reliability

  • Through the prop exhaust for a quieter ride
  • Built-in freshwater flushing system for easy routine flushing
  • Variable idling speed control from 650 to 950 rpm’s
  • A camshaft-driven trochoid oil pump ensures long-term durability of critical engine components
  • Stainless steel water pump housing liner for outstanding durability

Warning & Protection

  • Low oil pressure warning (visual and audible)
  • Overheat warning (visual and audible)
  • Battery voltage warning (visual only)
  • Start-in-gear protection for safer engine starting
  • Safety lanyard (an essential protection feature standard on all Tohatsu outboards)
  • Over-rev. limiter


Multi-Function Tiller Handle is available on select models.

The multi-function tiller handle features an ergonomically designed shift lever for easy and convenient shifting as well as a longer throttle grip with 110 degrees rotation for easier maneuverability. All controls on the new multi-function tiller are conveniently located on the handle for easy access and control. More specifically, the gear shift, throttle control, trim switch, safety lanyard cord, TLDIR warning lights, and electric start key switch are all integrated in the tiller handle.

Variable Idling System

allows trolling speed (RPM) to be adjusted in four levels from 650rpm to 950rpm (100rpm each) using the key-switch.


Standard built-in freshwater flushing system simplifies routine engine flushing.

Audio Visual Warning System

The tachometer informs the operator of potential problems such as low oil pressure, low battery, and overheat, through the built-in warning lights. (For models equipped with a tachometer)


Engine (No. of Cylinder) 3 Cylinder
Output 40 hp (29.4 kw)
Displacement 866 cc (52.84 cu.in.)
Bore x Stroke 70 x 75 mm (2.75 x 2.95 in)
Starting Electric
Control Type Remote or Tiller
Gear Shift Forward - Neutral - Reverse
Gear Ratio 2.08:1
Ignition System MicroComputer Programmed
Transom Height 15", 20"
Fuel Unleaded Gasoline (87 Octane) or higher
Oil Type NMMA Certified FC-W® 4-stroke oil**
Oil Capacity 0.63 gal. (2.4 L) w/filter
Weight* 209 lbs. (95 kg)
Alternator Output 12V, 252W, 21A
Max. RPM Range 5,000 - 6,000
Electronic Fuel Injection S
Digital CD Ignition System S
Start In Gear Protection S
Thermostat Controlled Cooling System S
Through-The-Prop Exhaust S
Overheat Buzzer S
Power Trim and Tilt S
Oil Pressure Warning S
  • S......Standard Features
  • O......Optional on Certain Models
Model MSRP Shaft Length Cylinders Electric Start Tiller Handle Remote Control 12V Charging
Trim &Tilt
Tachometer Propeller
MFS40AEFTS $7,239 15 3
MFS40AEFTL $7,274 20 3
MFS40AEPTS $7,239 15 3
MFS40AEPTL $7,274 20 3
  • MSRP is the "Manufacturer's Suggested Retail Price" (US$). Actual retail price may vary. Please contact your local dealer for actual retail price.
  • Specifications subject to change without notice. Additional models and/or configurations may be available. Contact your local dealer for details.


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