4 PCS Pistons & Rings Set Φ82mm For W203 W204 A209 C200K M271 2710302217 2710300024 2710306617 N000000000936 Material: cast aluminum Design: engineered for the M271 engine series Ring Thickness: 1st - 1.2mm, 2nd - 1.5mm, 3rd - 2.5mm Compatibility: Specifically designed for W203 W204 A209 C200K models Performance: STD 0.00 spec, no fit cylinder expand Quantity: Set of 4 pistons and rings The piston ring set is constructed from cast aluminum to support and resistance to wear.With a cylinder bore of 82.0mm, this set is tailored for the M271 1.8 Supercharged (1796cc) Kompressor engine, matching the specifications of compatible models.The design includes four pistons and rings, each equipped with optimized ring thickness to enhance compression and reduce friction.The first ring measures 1.2mm, the second 1.5mm, and the third 2.5mm, contributing to effective sealing and reduced oil consumption.This configuration supports consistent engine performance and for M271 engine-equipped vehicles.