Water Pump Yanmar 2GMF 3GMF 128397-42500

Description

Yanmar 2GMF 3GMF Replacement Water Pump with Impeller – High-Quality Marine Engine Pump

Looking for a reliable replacement water pump for your Yanmar 2GMF or 3GMF marine engine? This premium impeller pump is a high-quality alternative to original Yanmar models and comes complete with impeller included.

Designed to replace the Yanmar 128397-42500 pump, this model is fully compatible with a wide range of Yanmar inboard diesel engines. It delivers the same (or better) performance as OEM pumps from Ancor, Jansco, Johnson, and Sherwood, but at a better price point.

🔧 Compatible Yanmar Marine Engine Models:

This impeller pump fits the following Yanmar engines:

• Yanmar 2GMF, 3GMF

• 2YM, 3YM (including early models)

• 2GM20F, 3GM30F

• 2YM15, 3YM20, 3YM30

• 2GM, 2GM20, 2GM20(F), 2GM20(C)

• 3GM, 3GM30, 3GM30(C), 3GM30(F)

• 3HM35, 3HM35(C)

• 2QM

📏 Pump Specifications:

• Hose connection (inner diameter): 1/2″

• Hose connection (outer diameter): 3/4″

• Pump dimensions (L x W x H): 91 mm x 114 mm x 76 mm

• Weight: Approx. 4.0 lbs (1.82 kg)

• Hose fitting size: 18.00 mm

• Replaces Yanmar part numbers: 128397-42500, 128990-42500

• Replaces Johnson Pump part numbers: 10-24509-01, 10-13337-01, 10-24509-02

💡 Why Choose This Yanmar Replacement Pump?

• Direct fit for multiple Yanmar marine engines

• Improved design compared to original Yanmar pump

• Built from corrosion-resistant, marine-grade materials

• Impeller included – no need to buy separately

• Affordable alternative to OEM parts

This Yanmar marine water pump is perfect for boat owners, marine mechanics, and DIY enthusiasts looking for a durable, cost-effective, and easy-to-install solution for engine cooling system maintenance.