This CP Piston and ring set is made for Audi and VW 1.8L 20V engines with an 81.5mm bore and 8.5:1 compression ratio; supplied as a set of four pistons. Intended for engine rebuilds and repairs, the kit includes matched pistons and rings sized to the specified bore to restore correct piston-to-cylinder fit and sealing for the listed 1.8L 20V applications.
CP Piston & Ring Set for Audi/VW 1.8L 20V - Bore (81.5mm) - CR (8.5:1) - Set of 4