WATER RETAINER 895155

Function and technical context

The 895155 water seal is a critical sealing component in the cooling system of Mercury, Mariner and Mercruiser engines. Its fundamental mission is to prevent cooling water from escaping from the pump housing and internal motor passages, maintaining the pressure and flow necessary to maintain an optimal operating temperature. This seal works in conditions of permanent humidity and variable pressure, so its integrity is essential to prevent coolant losses, water entry into critical areas and, consequently, internal corrosion and engine overheating.

When to replace this part?

Water seals typically present progressive wear due to friction and degradation of the elastomeric material, manifesting through coolant losses around the pump shaft, changes in engine temperature or visible entry of water into the crankcase. It is recommended to inspect this component each sailing season and replace it preventively during major inspections or if leaks are detected in the seal area, thus avoiding costly repairs derived from overheating or internal corrosion at sea.

Compatible Mercury Mariner Engines

Equivalent manufacturer part numbers