GRACO SEAL, PISTON (166058) - (SKU: 166058)The GRACO 166058 SEAL, PISTON is a replacement piston seal designed for use in GRACO spray foam and fluid handling equipment. Its material is not specified in available sources, but similar GRACO piston seals are typically made from durable elastomers or engineered plastics for reliable sealing and long service life. This part is intended to maintain proper pressure and prevent leaks within the piston assembly of GRACO pumps and spray systems. Key

Cut the extension tube at a 45° angle to a length appropriate for the drum size

Used in GRACO resin transfer molding systems and other material handling equipment requiring robust piston rod sealing solutions

Ensure all connections are properly tightened and sealed for sanitary operation

Ensure o-rings are correctly installed on the alignment bolt

42" (107 cm) length

a durable engineering plastic

is an electric diaphragm pump designed for reliable fluid transfer in industrial settings

but it is intended to facilitate the movement and positioning of the sprayer

and optimal performance of the pressure pot assembly

Horizontal Surface Cleaner

Enclosure and Motor Kit

Grease reservoir