AFRAMARINE

4-Stroke MFS50A – MID RANGE Outboard Engine

The Aframarihe MFS50A is a lightweight, 50 HP four-stroke outboard engineered for superior performance and reliability. Designed with boaters’ needs in mind, this engine features Electronic Fuel Injection (EFI) for smooth, choke-free starts, exceptional fuel efficiency, and responsive acceleration.

Its lower gear ratio enhances low-end torque for improved handling, while the variable idle system allows idle speeds from 650 to 950 RPM for precise control. A stainless steel water pump housing liner ensures long-lasting durability, making the MFS50A perfect for recreational or commercial use. Optional Power Trim & Tilt and Gass Assyst Tilt increase convenience for effortless operation on a wide range of boats.


Key Features

✓ 3-Cylinder, 50 HP Four-Stroke Engine
✓ Electronic Fuel Injection for Easy Start & Fuel Efficiency
✓ Digital ECU Controlled Ignition System
✓ Lightweight Design (95 kg / 209 lbs.)
✓ Electric Start
✓ Remote Control or Tiller Handle Options
✓ Optional Power Trim & Tilt
✓ Optional Gass Assyst Tilt
✓ Start-in-Gear Protection
✓ Thermostat-Controlled Cooling System
✓ Through-The-Prop Exhaust
✓ Overheat Buzzer
✓ Oil Pressure Warning
✓ Variable Idle Speed Control (650–950 RPM)

Description

Engine

Item Details
Engine Type 3 Cylinder, Four-Stroke
Output 50 PS (36.8 kW)
Displacement 866 cc (52.9 cu.in.)
Bore × Stroke 70 × 75 mm (2.76 × 2.95 in)
Max RPM Range 5,000 – 6,000
Fuel System Electronic Fuel Injection
Fuel Type Unleaded Gasoline (87 Octane) or higher
Oil Type NMMA Certified FC-W® 4-Stroke Oil SAE 10W-30/40
Oil Capacity 2.4 L (0.63 US Gal.) w/filter

Controls & Starting

Item Details
Starting System Electric
Control Type Remote Control or Tiller Handle
Gear Shift Forward – Neutral – Reverse
Gear Ratio 2.08:1 (13:27)

Dimensions & Weight

Item Details
Transom Height 15″, 20″
Weight* 95 kg (209 lbs.)
Propeller Selection 7″ – 17″
Fuel Tank 25 L (6.6 US Gal.) Separate Tank

*Weight based on the lightest configuration.

Electrical

Item Details
Alternator Output 12V, 252W, 21A

Available Models

Model Shaft Length Cylinders Electric Start Tiller Handle Remote Control 12V Charging Power Trim & Tilt Remote Fuel Tank Propeller Gass Assyst Tilt
MFS50AETS 15″ 3 Standard See Note See Note Standard Standard Standard Optional
MFS50AETL 20″ 3 Standard See Note See Note Standard Standard Standard Standard
MFS50AEGL 20″ 3 Standard See Note See Note Standard Standard Standard Standard
MFS50AWETL 20″ 3 Standard See Note See Note Standard Standard Standard Standard

S = Standard

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