Name: Starter Motor 128170-77010 for Yanmar Marine Diesel 1GM 2GM 3GM Series 12V 1.0kW
Brand: waiglobal
SKU: 200-601
Price: 139.99 GBP
Availability: InStock

Starter Motor 128170-77010 for Yanmar Marine Diesel 1GM 2GM 3GM Series 12V 1.0kW

STARTER MOTOR 128170-77010 for YANMAR 1980-Up (1GM, 2GM, 3GM Series) Marine Diesel Engines - 4Boats

Dispatched in 2-3 days

30 Day Return Policy

In stock, ready to ship
Backordered, shipping soon

Our stock levels are dynamic and can change frequently. If a product appears to be in stock, it may have already sold out. Please contact us if you have any questions about availability. Thank you for your understanding.

£139.99

Tax included.

Starter Motor 128170-77010

Premium Replacement for Yanmar GM-Series Marine Diesels

Ensure your vessel starts reliably every time with this high-torque, marine-grade starter motor. Designed specifically for the iconic Yanmar GM series, this direct-fit aftermarket unit offers the cranking power required for diesel ignition in demanding marine environments. Precision-engineered to meet Hitachi S114-303 specifications, it provides a cost-effective yet dependable alternative to expensive OEM units.

RELIABILITY: Built with corrosion-resistant housings and high-temperature internal windings to withstand the salt-air environment of your engine room.

Key Features

✔ Direct fit for Yanmar 1GM, 2GM, 3GM
✔ 9-Tooth pinion gear for precise mesh
✔ Clockwise (CW) rotation
✔ High-output 1.0kW power rating
✔ Easy 2-bolt flange installation

Technical Specs

Voltage:	12V
Power:	1.0 kW
Rotation:	Clockwise (CW)
Pinion Teeth:	9 Teeth
Flange Diameter:	70mm
Mount Bores:	2 Holes

Compatibility / Fitment Guide

Engine Model	Cylinders	Notes
Yanmar 1GM / 1GM10	1-Cyl	Marine Diesel (1980-Up)
Yanmar 2GM / 2GM20 / 2GMF	2-Cyl	Standard & Fresh Water Cooled
Yanmar 3GM / 3GM30 / 3GMF	3-Cyl	Fits 3GM30F & 3GMD Models
Yanmar 3HM / 3HM35	3-Cyl	Verify OE Part Number

OEM Cross Reference

Yanmar	128170-77010, 128170-77011, 128170-77012
Hitachi	S114-303, S114-303A, S114303, S114303A
Bosch	SR5052N
Lucas	LRS01128
Arrowhead	SHI0080

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.

Will this starter fit the newer 3YM series engines?

While primarily designed for the GM series (1GM, 2GM, 3GM), it is often cross-compatible with early 3YM series engines. However, always verify your existing starter's part number against 128170-77010 to ensure the mounting and gear teeth are identical.

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

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

Free delivery for most items over £150.

Why choose us

QUALITY MARINE PARTS

We source dependable marine products from established suppliers and continually refine our range using customer feedback.

TRUSTED SUPPLIERS

We work with trusted marine suppliers and distribution partners to provide reliable parts, equipment and fulfilment.

Simple_Image_Play_Built_into_Routine_Cosmetics_TikTok_In-Feed_Ad_1080_x_1080_px_10 - 4Boats

PERSONAL SERVICE

Every order is checked by the 4Boats team. Contact us before ordering if you need help with part numbers, compatibility or availability.

Starter Motor 128170-77010 for Yanmar Marine Diesel 1GM 2GM 3GM Series 12V 1.0kW