Starter motor for Mercury Mariner outboard 100-250HP, black and silver, 4Boats UK marine part
Starter motor for Mercury Mariner outboard 100-250HP, marine boat engine part
Starter motor for Mercury Mariner outboard 100-250 HP, marine boat engine part
Starter motor for Mercury Mariner outboard 100-250 HP, marine engine part by 4Boats UK
Starter motor for Mercury Mariner outboard, marine engine part, 4Boats UK
Starter motor for Mercury Mariner outboard, black and silver marine engine part
Starter motor for Mercury Mariner outboard 100-250HP, black and silver, 4Boats UK marine part
Starter motor for Mercury Mariner outboard 100-250HP, marine boat engine part
Starter motor for Mercury Mariner outboard 100-250 HP, marine boat engine part
Starter motor for Mercury Mariner outboard 100-250 HP, marine engine part by 4Boats UK
Starter motor for Mercury Mariner outboard, marine engine part, 4Boats UK
Starter motor for Mercury Mariner outboard, black and silver marine engine part

Starter Motor for Mercury Mariner 100-250HP 2-Stroke Outboard 50-79472 50-77141

5389N

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Β£128.99
/
Tax included.

Starter Motor for Mercury Mariner 50-79472

High-Performance Replacement for 100-250HP 2-Stroke Outboards

Restore reliable ignition to your Mercury or Mariner outboard with this heavy-duty starter motor. Engineered to withstand harsh marine environments, this unit is a precision-built replacement for the widely used 50-79472 series. Whether you are running a 4-cylinder 115HP or a high-displacement 250HP V6, this starter provides the high-torque output required for consistent cold starts.

RELIABILITY: Built to meet or exceed OEM specifications with a high-torque PMDD design for long-lasting performance in saltwater and freshwater conditions.

Key Features

  • βœ” Direct Fit: Drops into original mounting position without modification.
  • βœ” 8-Tooth Drive: Optimized gear profile for 94-tooth flywheel ring gears.
  • βœ” High Torque: PMDD motor type for superior cranking power.
  • βœ” Sealed Construction: Corrosion-resistant housing and internal seals.

Technical Specs

Voltage: 12V
Rotation: CCW (Counter-Clockwise)
Tooth Count: 8 Teeth
Starter Type: PMDD
Weight: Approx. 4.3 kg

Compatibility / Fitment Guide

Engine Range Type Approx. Years
100 HP - 125 HP 4-Cylinder, 2-Stroke 1988 - 2000s
135 HP - 200 HP V6, 2-Stroke (2.0L, 2.4L, 2.5L) 1984 - 2005
225 HP - 250 HP V6, 2-Stroke (3.0L / 3.4L) 1994 - 2000s
XR4 / XR6 / Magnum High Performance V6 All 8-Tooth Models

Note: Not compatible with newer 4-stroke models or models requiring a 9-tooth or 10-tooth drive gear.

OEM Cross Reference

Mercury / Mariner 50-79472, 50-79472-1, 50-79472T2
Mercury / Mariner 50-77141, 50-44415, 50-884238T, 50-893893
Sierra Marine 18-5608
Arco Marine 5380

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part, manufactured to meet or exceed original equipment (OE) standards for fitment and performance.

How do I know if it is compatible?

We recommend checking the SKU/MPN and Cross Reference list provided above. If your original part number is 50-79472 or 50-77141, this is a guaranteed fit.

My original starter has 10 teeth, will this work?

No. This model features an 8-tooth drive gear. If your engine requires a 10-tooth gear (common on older "Tower of Power" 6-cylinder engines), this unit will not engage correctly with your flywheel.

Note: Please verify your original part number and gear tooth count against the specifications above before purchasing. Distributed by 4boats.co.uk.

For the products under Β£150 the shipping is Β£6.99.

Free delivery for most items over Β£150.

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