• Water Pump Kit Yanmar 2GM 3GM 128990-42500 - 1 - XRmarine
  • Water Pump Kit Yanmar 2GM 3GM 128990-42500 - 2 - XRmarine
  • Water Pump Kit Yanmar 2GM 3GM 128990-42500 - 3 - XRmarine
  • Water Pump Kit Yanmar 2GM 3GM 128990-42500 - 4 - XRmarine
  • Water Pump Kit Yanmar 2GM 3GM 128990-42500 - 5 - XRmarine
  • Water Pump Kit Yanmar 2GM 3GM 128990-42500 - 6 - XRmarine
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Water Pump Kit for Yanmar 2GM 3GM 2YM 3YM 128990-42500 X03431748

Water Pump Kit for Yanmar 2GM 3GM 2YM 3YM 128990-42500 X03431748

$75.99 USD
$75.99 USD
Sale Sold out
Shipping calculated at checkout.

Product Overview

Complete raw water pump kit for Yanmar 2GM, 3GM, 2YM, and 3YM marine diesel engines. Full rebuild kit for the engine raw water cooling pump.

OEM Part Numbers

  • Yanmar: 128990-42500, 128377-42500, 128397-42500
  • Replaces: X03431748, X03431760, I-143

Compatible Engines

  • Yanmar 2GM, 3GM Series
  • Yanmar 2YM, 3YM -YEU Series

Kit Includes

  • 1 x Water Pump
  • Gaskets, Seals, Hardware

Before You Buy

Please verify your engine model and serial number. Contact us for fitment confirmation.

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Boat Owners' Review

4.80 ★ (5)
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Before You Buy

Frequently Asked Questions

What is your refund policy?

We offer a 14-day hassle-free return on all products. Items must be unused and in original packaging. Every XRmarine part is also covered by our 1-year warranty against manufacturing defects. If something is not right, email us at info@xrmarineparts.com — replacement or full refund, your choice.

See our full Refund Policy for complete details.

How does shipping work?

Free international shipping on every order — no minimums. We ship from our global warehouse network (US, Germany, UK, Australia). Typical delivery: 10-20 business days. Tracking included.

See our full Shipping Policy.

How do you keep prices fair?

We cut out the middlemen. XRmarine sources directly from quality manufacturers and sells at honest prices. Same OEM-quality parts, no dealership markup. Every order comes with free shipping, real expert support, and a 1-year warranty.

Learn more on our About Us page.

What payment methods do you accept?

We currently accept PayPal — a fast, secure way to pay online. Credit card payments (Visa, Mastercard, American Express) and Shopify Payments are being set up and will be available soon. We appreciate your patience.