GRACO COLLET, IMPELLER (1.3 x 0.675 x 0.49 in) - (SKU: 186646) The valve piston is intended

The valve piston is intended to control or regulate the flow of fluids or viscous materials in commercial and industrial applications

Clean the seating area before installing the new O-Ring

Regularly inspect piston cups for wear or damage

likely in lubrication

GRACO COLLET, IMPELLER (1.3 x 0.675 x 0.49 in) - (SKU: 186646) The valve piston is intendedThe GRACO 186646 COLLET, IMPELLER is a precision engineered spare part designed for use in GRACO spray foam and industrial coating equipment. It is typically constructed from durable materials suitable for high performance applications, though the specific material is not specified in available sources. Its primary function is to secure and drive the impeller within the pump assembly, ensuring reliable operation in demanding environments such as