Heat Exchanger Seal Kit for Yanmar 3YM15 3YM20 3YM30 - Replaces 128990-44100

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£43.20 £36.00 Save £7.20

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Yanmar 3YM Series Seal Kit RM3YM-WC

Name: Heat Exchanger Seal Kit for Yanmar 3YM15 3YM20 3YM30 - Replaces 128990-44100
Price: 36.0 GBP
Rating: 5 (1 reviews)

Premium Heat Exchanger Service Solution

Maintenance of your marine engine's cooling system is critical to preventing overheating and ensuring long-term reliability. This heat exchanger seal kit is designed specifically for the Yanmar 3YM series, providing a comprehensive solution for servicing the fresh water cooler and exhaust manifold interface.

RELIABILITY: Engineered using high-temperature resistant elastomers and composite materials to meet or exceed original equipment standards.

Kit Contents

✔ 4x Heat Exchanger O-Rings
✔ 1x Exhaust Manifold Gasket
✔ Precision-molded for leak-free seal
✔ Resists salt water & coolant additives

Technical Specs

Part Number:	RM3YM-WC
O-Ring Material:	Heat-Stabilized Nitrile
Gasket Type:	Composite Manifold Seal
Total Pieces:	5 Components

Compatibility / Fitment Guide

Engine Series	Specific Models	System
Yanmar 3YM	3YM15	Fresh Water Cooling
Yanmar 3YM	3YM20	Fresh Water Cooling
Yanmar 3YM	3YM30, 3YM30AE	Fresh Water Cooling

OEM Cross Reference

Yanmar (O-Ring)	128990-44100 (x4)
Yanmar (Gasket)	119717-13110 (x1)
Recambios Marinos	RM3YM-WC

Questions & Answers

Is this a genuine original part?

This is a premium quality aftermarket replacement part from Recambios Marinos, manufactured to meet or exceed original equipment (OE) standards for marine environments.

How do I know if it is compatible?

We recommend checking your engine model. This kit is specifically for the 3-cylinder 3YM series (15, 20, and 30hp versions). If your heat exchanger uses the 128990-44100 o-rings, this is the correct kit.

What components are included in this kit?

The kit includes a total of 5 items: four O-rings for the heat exchanger end caps and one main exhaust manifold gasket to ensure a complete service of the cooling interface.

Note: Please verify your engine model and part numbers against the references above before purchasing. Distributed by 4boats.co.uk.

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Heat Exchanger Seal Kit for Yanmar 3YM15 3YM20 3YM30 - Replaces 128990-44100