Mercury Mariner outboard starter motor for 135-225 HP engines, marine boat part from 4Boats.

Starter motor for Mercury Mariner outboard, black cylinder, 4Boats marine parts

Starter motor for Mercury Mariner outboard, black cylindrical marine engine part, 4Boats UK

Black starter motor for Mercury Mariner outboard, marine engine part from 4Boats UK

Starter motor for Mercury Mariner outboard, black cylindrical marine engine part

Starter motor for Mercury Mariner outboard, black marine engine part from 4Boats UK

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£170.00

Tax included.

Starter Motor 50-833153-2

Name: Starter Motor for Mercury Mariner Optimax 135 150 200 225 HP 50-833153-2 18-6283
Price: 170.0 GBP
Rating: 5 (1 reviews)

For Mercury & Mariner Optimax 135-225 HP Outboards

Restore the reliable starting power of your outboard with this premium replacement starter motor. Specifically engineered for Mercury and Mariner V6 Optimax (DFI) engines, this unit is built to withstand the rigorous demands of the marine environment.

MARINE GRADE: This unit is SAE J1171 Marine Ignition Protection Certified, ensuring safe operation in engine compartments where fuel vapors may be present.

Key Features

✔ Permanent Magnet Direct Drive (PMDD)
✔ Direct fit OEM replacement
✔ High-torque performance for cold starts
✔ Corrosion-resistant housing and components

Technical Specs

Voltage:	12V
Rotation:	CCW (Counter-Clockwise)
Teeth Count:	9
Gear OD:	21.8mm / 0.858in
Mounting:	2-Bolt (8mm ID)
Weight:	~4.05 kg (8.9 lbs)

Compatibility / Fitment Guide

Make/Model	Engine Application	Year Range
Mercury / Mariner	135HP 2.5L Optimax DFI	1998 - 1999
Mercury / Mariner	150HP 2.5L Optimax DFI	1998 - 1999
Mercury / Mariner	200HP 3.0L Optimax DFI	1997 - 1999
Mercury / Mariner	225HP 3.0L Optimax DFI	1998 - 1999

OEM Cross Reference

Mercury Marine	50-833153, 50-833153-1, 50-833153-2, 50-833153-5, 50-833153T4
Sierra Marine	18-6283
ARCO Marine	5381
API Marine	MOT3016
Lester	5772

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 matches any of these, it is a guaranteed fit.

Does this fit the newer 4-stroke engines?

Technical research confirms this specific part number (50-833153-2) is designed for the V6 Optimax (DFI) 2-stroke series from the late 1990s. For newer 4-stroke models, please verify your serial number against the OEM parts catalog to ensure the correct starter is selected.

Note: Please verify your original part number against the references above before purchasing. Distributed by 4boats.co.uk.

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

Free delivery for most items over £150.

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Starter Motor for Mercury Mariner Optimax 135 150 200 225 HP 50-833153-2 18-6283