Tohatsu MFS50AETS 50HP 4-Stroke Outboard – 15in Shaft

SKU: MFS50AETS
In Stock

No cables, Tohatsu MFS50AETS brings 50 horsepower. Transom height calls for the 15-inch shaft. Owners choose it for steady output without excess weight. Well matched to mid-size aluminum and fiberglass boats.

  • 50 horsepower, ready to run
  • 15-inch shaft, standard fit
  • Straightforward to service and maintain
  • Shaft length 15 inches
  • Fits 15-inch transom height
$3,850.00
In Stock
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Description

High-speed shallow water maneuvers demand the Tohatsu MFS50AETS to safely clear underwater obstacles. The 866cc inline-three EFI block atomizes gas instantly, pushing low-profile fiberglass speedboats across winding marsh channels with blistering acceleration. Verifying your exact transom geometry ensures this 15 inch short shaft power tilt outboard fits correctly without creating excessive hydrodynamic drag.

Avoid catastrophic lower unit destruction in skinny water by utilizing the integrated hydraulic power trim to lift the gearcase rapidly. You tuck the engine inward from the console switch to optimize your running attitude effortlessly. Engineers cast the 93 kg midsection using impact-deflecting marine aluminum. This thick-wall metal prevents catastrophic structural fatigue when repowering small performance hulls for shallow water operation.

Key Features of Tohatsu MFS50AETS

  • 15-Inch Short Shaft: Matches standard low transoms exactly, preventing excessive drag from a deep gearcase and increasing top-end speeds drastically.
  • Hydraulic Power Trim: Lifts the gearcase completely clear of mud flats at the push of a button, preventing catastrophic propeller strikes.
  • Remote Steering Bracketry: Accepts standard mechanical cables directly from your forward helm, integrating flawlessly for precise directional control.
  • Electronic Fuel Injection: Vaporizes gas instantly into the cylinders regardless of temperature, guaranteeing crisp throttle translation on lightweight fiberglass hulls.
  • Turn-Key Electric Start: Engages the flywheel instantly via 12-volt battery power, eliminating physical pull strain completely during freezing early morning launches.
  • 21-Amp Charging Alternator: Keeps your cranking battery topped off automatically, powering demanding fish finders and livewell pumps reliably all day.
  • 866cc Displacement Block: Produces massive low-end torque internally, lifting heavily loaded 13-foot rigid dinghies onto plane much faster.
  • 2.08:1 Gearcase Ratio: Multiplies engine torque effectively, translating the 866cc displacement into relentless pushing force for loaded sport skiffs.
  • Impact-Deflecting Geometries: Reinforces the lower unit housing tightly, protecting internal gears against hidden submerged log strikes in shallow water.
  • Four-Stroke Engineering: Burns fuel highly efficiently without oil mixing, easily meeting strict local waterway emissions regulations and EPA standards.

Why Choose Tohatsu MFS50AETS

This exact model demands a 15-inch transom height paired with a complete forward helm station. Attaching it to a 20-inch transom leaves the cooling intakes completely dry. Finding a reliable short shaft power tilt outboard fits specific classic sport hulls perfectly.

  • Confirm your transom measures exactly 15 inches vertically down the centerline.
  • Route mechanical steering and shift cables cleanly avoiding sharp pinch points.
  • Operate legally on restricted waters using certified low-emission combustion processes.

Ideal Application and Vessel Fitment

Engineered for low-profile fiberglass micro-skiffs, classic aluminum bass trackers, and lightweight sport boats equipped with forward consoles, this 866cc block provides oversized displacement torque. Because the shaft length perfectly matches standard 15-inch transoms, the gearcase generates minimal hydrodynamic drag, maximizing top-end speed on ultra-light hulls. By utilizing the factory power trim, operators navigating a shallow water remote steer outboard can quickly lift the propeller over oyster bars without leaving the steering wheel.

Warranty, Support and Maintenance

Authorized recreational operation receives a 5-Year Limited Warranty alongside exceptional factory support. Registered commercial applications fall under a strict 1-Year Limited Warranty with zero corrosion coverage applied to the block. Scheduled maintenance requires replacing gearcase lubricants and changing oil filters at manual-specified intervals. Always save all physical service records. Your engine serial number acts as the only way to source exact genuine replacement parts. Mulmotor provides product-information support before purchase and assistance with order-related questions.

Tohatsu MFS50AETS Specs

BrandTohatsu
Full Model CodeMFS50AETS
Country of OriginJapan
Engine Family/SeriesMFS40/50/60A Series
Engine Type3-Cylinder SOHC, 4-Stroke
Displacement866 cc
Horsepower50 HP
Full Throttle RPM Range5000 - 6000 RPM
Fuel Induction SystemElectronic Fuel Injection (EFI)
Alternator Output21 Amps
Gear Ratio2.08:1
Shaft LengthS: 381 mm (15 in)
Dry Weight93 kg (205 lbs)
Bore x Stroke70 x 75 mm
Starting & Steering SystemElectric Start & Remote Control
Trim/Tilt MethodPower Trim and Tilt
Oil Capacity2.4 Liters
Recommended Fuel87 Octane
Standard Warranty5-Year Limited Warranty
ApplicationShort Transom Performance Boats, Speedboats, Rigid Inflatables

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