GRACO Retainer O-Ring (186165) - (SKU: 186165)The 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

leak-free connections between components of varying sizes

but it is designed for secure attachment and easy access with a hex key

and other fluids in manufacturing

Compatible with GRACO P-25 series hopper assemblies

and other heavy-duty applications where reliable and consistent pump performance is required

The kit is constructed from materials suitable for industrial spray applications

The GRACO 17Y255 is a diffuser

Intended for easy replacement and maintenance

intended to provide reliable actuation and ergonomic comfort for operators during extended use

Ensure harness is properly adjusted and stored when in booster mode

Ensure all components are properly identified and referenced during assembly and maintenance

helping to prevent leaks and ensure consistent spray performance