Starter Motor for Mariner 20 HP 25 HP 30 HP 40 HP 2-Stroke – Japanese Yamaha-Built Models

Premium-quality aftermarket starter motor for selected Mariner Japanese 2-stroke outboards manufactured by Yamaha.

Suitable for selected 20 HP, 25 HP, 30 HP and 40 HP Mariner engines, approximately 1977–1992, using the corresponding Yamaha-built engine series.

⚠️ JAPANESE MARINER MODELS MADE BY YAMAHA ONLY

This starter motor will NOT fit Mercury-built / USA Mariner engines.

It will NOT fit Belgian-built Mariner models.

Please check your engine model, serial number prefix and original starter motor part number before ordering.

Fits Selected Mariner Japanese Models

20 HP

Selected Yamaha-built Mariner models with 6A9** engine / serial prefix**

25 HP

Selected Yamaha-built Mariner models with 695** engine / serial prefix**

30 HP

Selected Japanese Yamaha-built Mariner applications  with 689** engine / serial prefix**

Application

• Mariner Outboard

• 20 HP / 25 HP / 30 HP / 

• 2 Stroke

• Japanese models

• Manufactured by Yamaha

• Approximately 1977–1992

• 11-Tooth Starter Drive

Replaces Mariner / Mercury Part Numbers

• 50-814980M

• 50-84917M

• 50-8M6007415

• 50-96359M

• 50-97693M

• 814980M

• 84917M

• 96359M

• 97693M

OEM part numbers are used for identification and compatibility reference only.

Yamaha Cross Reference

This starter motor corresponds with the Yamaha-built starter motor family including:

• 689-81800-10

• 689-81800-11

• 689-81800-12

• 689-81800-13

Product Features

• Mariner outboard starter motor

• For selected Japanese Mariner engines made by Yamaha

• 20 HP–40 HP selected applications

• 2-stroke

• 11-tooth starter drive

• Replacement for 50-97693M

• Replacement for 50-96359M

• Replacement for 50-84917M

• Replacement for 50-814980M

• Replacement for 50-8M6007415

• High-quality marine-grade aftermarket part

• New

• UK stock

VERY IMPORTANT – Japanese Models Only

This starter motor is NOT suitable for all Mariner 20–40 HP engines.

Mariner used engines from different manufacturers and production locations.

This listing is specifically for selected:

MARINER JAPANESE MODELS MANUFACTURED BY YAMAHA

It is NOT for USA / Mercury-built Mariner models and NOT for Belgian-built Mariner models.

Two Mariner outboards with the same horsepower can use completely different starter motors.

Please do not order by horsepower or appearance alone.

Before purchasing, please check:

• Engine is Mariner

• Engine is a Japanese Yamaha-built model

• Engine horsepower

• Exact engine model

• Engine serial number / prefix

• Original starter motor part number

• 11-tooth starter drive

• Mounting points and electrical connections

For 20 HP and 25 HP applications, pay particular attention to the Yamaha-style engine prefixes:

• 20 HP – 6A9

• 25 HP – 695

If the starter motor looks the same as yours, this does not always mean it is the correct one for your outboard.

If you are unsure, please send SSI Marine a picture of your engine identification plate / complete serial number before ordering and our technical team will help identify the correct starter motor.

Why Buy From SSI Marine?

• Workshop-tested aftermarket & OEM-spec marine parts

• More than 10 years supplying and servicing outboards

• UK stock

• Same working day dispatch before 1 PM Monday–Friday

• Royal Mail Tracked 24

• Collection available from Leigh, Greater Manchester

• Technical support from experienced outboard specialists