Starter Motor for Mercury (2/3 CYL) STARTER MOTOR 50-853805T03, 50-8M0147039 - 4Boats

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£129.99

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Starter Motor for Mercury 50-853805T03

Name: Starter Motor for Mercury Mariner 25 30 40 50 60 HP 4-Stroke 50-853805T03 10T
Price: 129.99 GBP
Rating: 5 (1 reviews)

Premium Quality Replacement Part for 25-60HP 4-Stroke

This high-performance starter motor is engineered specifically for Mercury and Mariner 4-stroke outboard engines ranging from 25HP to 60HP. Whether you are navigating fresh or saltwater, this unit provides the high-torque output required for reliable, rapid ignition of EFI systems.

RELIABILITY: Engineered with sealed housings to block corrosion and precision-ground brushes for maximum electrical conductivity and service life.

Key Features

✔ Direct fit for Mercury/Mariner EFI models
✔ Marine-grade corrosion resistant finish
✔ High-torque permanent magnet design
✔ Tested for SAEJ1171 Marine standards

Technical Specs

Voltage:	12V
Rotation:	CCW (Counter Clockwise)
Teeth:	10-Tooth Drive
Type:	PMDD
Gear OD:	32.5mm (1.28in)

Compatibility / Fitment Guide

Engine Type	Horsepower Range	Notes
Mercury / Mariner 4-Stroke	25HP, 30HP	EFI Models (2006-Later)
Mercury / Mariner 4-Stroke	40HP, 50HP, 60HP	3-Cyl & 4-Cyl EFI Models

OEM Cross Reference

Mercury Marine	50-853805T03, 50-8M0147039, 50-8M0188334, 50-853805A3
Hitachi	S108-94, S108-112, S108-120
Sierra Marine	18-6432
Arco Marine	3412
Lester / WAI	18319 / 18319N

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part from 4Boats, 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 matches any of these, or your engine is a 25-60HP 4-stroke EFI model, it is a guaranteed fit.

Will this fit the older 2-stroke models?

No, this specific starter is designed for the newer 4-stroke EFI (Electronic Fuel Injection) engines. Please verify your HP and Stroke type before ordering.

Note: Please verify your original part number against the references above before purchasing. Distributed by 4Boats / Aftermarket.

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Starter Motor for Mercury Mariner 25 30 40 50 60 HP 4-Stroke 50-853805T03 10T