EA113 Pistons & Rings Φ20mm 82.5mm 06D107066C N0122731 06D198151B For A3 A4 A6 Leon Material: aluminum Piston Diameter: 82.5mm (exact measurement 82.46mm) Pin Diameter: Φ20mm Ring Thickness: 82.5x1.2, 82.5x1.5, 82.5x2.0 Compatibility: Fits a wide range of A3, A4, A6, and Leon models The EA113 Pistons & Rings Φ20mm are designed to improve engine performance and durability.Constructed from aluminum, the pistons provide strength with reduced weight.The 82.5mm piston diameter fitment, and the Φ20mm pin diameter supports compatibility across multiple applications.The set includes three ring thicknesses to allow for tailored installation and effective sealing. Notice: This replacement item is produced by an independent supplier.All brand and model mentions are for compatibility purposes only.