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Breakout Star Jmp Marine® Jpr-ym08ih Replacement Yanmar 128397-42500 Seawater Pump Markdown: -90% [zRE1DuTc]

$50.99 $163.99 -69%

JMP Marine® JPR-YM08IH Replacement Yanmar Seawater Pump The JMP Marine® JPR-YM08IH Replacement Yanmar Seawater Pump is a premium aftermarket solution designed to provide exceptional performance and durability for your marine engine. This pump is a di

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Breakout Star Jmp Marine® Jpr-ym08ih Replacement Yanmar 128397-42500 Seawater Pump Markdown: -90% [zRE1DuTc]

JMP Marine® JPR-YM08IH Replacement Yanmar Seawater Pump

The JMP Marine® JPR-YM08IH Replacement Yanmar Seawater Pump is a premium aftermarket solution designed to provide exceptional performance and durability for your marine engine. This pump is a direct replacement for Yanmar 128397-42500, 128990-42500, Johnson 10-24509-01, 10-13337-01, and F4B-903, ensuring compatibility with 2GMF, 3GMF, 2YM, and 3YM engines. Crafted with a strong bronze body and marine-grade shaft, this pump offers a simple and compact design, reducing the number of parts and ensuring ease of installation.

Key Product Features and Specifications

The JMP Marine® JPR-YM08IH Replacement Yanmar Seawater Pump is engineered for high performance and long life. It features a cam-less design, where the cam is machined directly into the body casing, providing a robust structure. This pump is equipped with a mechanical seal, which offers superior durability compared to traditional lip seals. The pump's internal parts are not compatible with genuine parts, but this is a testament to the quality and performance enhancements made by JMP Marine. Key specifications include a port size of 1/2" hose for the inside diameter and approximately 3/4" hose for the outside diameter, with a pump size of 91mm x 114mm x 76mm and a weight of approximately 4.0 lbs.

Practical Applications and Benefits

The JMP Marine® JPR-YM08IH Replacement Yanmar Seawater Pump is an essential component for maintaining the health and efficiency of your marine engine. By replacing the original equipment manufacturer (OEM) pump with this high-quality aftermarket alternative, you can expect improved flow rates, enhanced durability, and reduced maintenance requirements. This pump is perfect for a wide range of marine applications, including boats, yachts, and other watercraft. Its robust construction and reliable performance make it an ideal choice for both professional mariners and recreational boat owners alike. With a 1-year manufacturer's warranty, you can purchase with confidence, knowing that JMP Marine stands behind the quality of their products.

What Our Customers Say

January 17, 2026

Absolutely no complaints!

The quality is palpable from the first touch.

- Rhun C..

January 17, 2026

Absolutely no complaints!

This is a great item. And many, many thanks.

- Rhisiart P..

January 17, 2026

Absolutely no complaints!

This is a very well-built, and a very nice tool.

- Jestin L..

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