Over 200 Piston Seals of Various Bore Diameter, Grove Width and Shape
Cat® Two-Piece Piston Seals consist of a piston ring and an expander that prevents oil transfer between the rod end of the cylinder and the cap end. The piston seal is usually made of Teflon, with nylon available for pressure greater than 3000 psi (20,670 kpa). The various shaped expanders are nitrile.
Need advice on the best piston seal for your machine? Contact your nearby Cat Dealer for expert advice and 100% support.