GRACO Retainer O-Ring (186165) - (SKU: 186165) Regularly inspect and replace the

Regularly inspect and replace the seat as part of routine maintenance

Clean the grease kit and pump after use to prevent contamination

and clear any obstructions if necessary

specifically for models requiring a spool seal assembly for high-pressure (HI) and extended performance (EP) applications

This part is intended for use as a connector in various GRACO systems

GRACO Retainer O-Ring (186165) - (SKU: 186165) Regularly inspect and replace theThe GRACO 186165 Retainer O Ring is a replacement sealing component designed for use in GRACO pump assemblies. Its primary function is to retain and seal critical areas within the pump, preventing leaks and ensuring reliable operation. The material is not specified in available listings, but it is typically made from durable elastomers suitable for high pressure and chemical environments. Key Features: O Ring Compatible with select GRACO pump models