These steel balls reside in the pump and close off ports so one side vacuums the fluid in and the other portside pushes the fluid out. A necessary replacement for proper port function. Sold as a four-piece kit.
Genuine General Motors product.
Find in OPGI's 2018 GTO Catalog page 130.
This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.