All mechanical GMB water pumps meet or exceed OEM standards for performance and durability.

• Whether the housing is made of cast iron, aluminum, or stamped steel, our tight manufacturing tolerances make installation simple and trouble-free.
• Cooling is maximized with our precision-formed impellers and tested to meet or exceed OEM flow rate specifications at various RPMs.
• Our proprietary shaft seal design withstands wear, preventing leaks and maximizing longevity.
• Our genuine GMB steel bearings are made from top-quality materials.

Water pump failures can cause catastrophic damage to an engine; we make sure every GMB Water Pump will meet or exceed OEM specifications. And because we manufacture every water pump to tight tolerances, our dimensions are accurate, and installation is easy (easy installation is essential, as it prevents many of the issues that lead to leaks and premature failure).

When it’s time to replace the water pump in your vehicle, it makes sense to go with a reliable, top-quality replacement from GMB.