CP Piston and ring set for Audi/VW 1.8L 20‑valve engines, bore 81.0mm, standard size, compression ratio 8.5, supplied as a set of four pistons. This OEM‑style replacement set is specified to the listed bore and dimensions for direct fitment in matching 1.8L 20V applications, intended for engine rebuilds requiring standard‑size pistons and correct compression characteristics.
CP Piston & Ring Set for Audi/VW 1.8L 20 Valve - Bore (81.0mm) - Size (STD) - CR (8.5) - Set of 4