Yamaha - Water Pump Gasket Cooling System Seal 6CE-44315-00-00. Overview. The Yamaha Water Pump Gasket 6CE-44315-00-00 is a critical sealing component that ensures your water pump system remains leak-free and operating efficiently. Positioned between the water pump housing and engine components, this gasket maintains proper pressure and directs water flow where it's needed most. Over time, exposure to heat, water, and pressure can cause gaskets to deteriorate, leading to leaks and reduced coolin