This 4-piece piston ring set includes components designed for use in specific and SEAT vehicles with 2.0L TFSI or TSI engines.The set features a 21mm piston pin diameter and is compatible with a range of model years from 2007 through 2011.5, depending on the vehicle.Specifications: - Piston diameter: 82.5mm (3.25in) - Piston pin diameter: 21mm - Ring thickness options: 82.5x1.2mm, 82.5x1.5mm, 82.5x2.0mm - Buckle size: 21x1.5mm Kit includes: - 4 pistons - 4 piston rings - 4 piston pins - 8 piston pin buckles Compatible models include (but are not limited to): - A3 (2008–2011.5) 2.0 TFSI CAWB, CCZA, CBFA - A4 (2009–2011.5) 2.0 TFSI CAEA, CAEB, CDNB, CDN - A4 Allroad (2010–2011.5) 2.0 TFSI CNC - A5 (2008–2011.5) 2.0 TFSI CAEB, CDNB, CDNC - Q5 (2009–2011.5) 2.0 TFSI CAEB, CDNB, CDN - TT (2007–2010) 2.0 TFSI CCTA, CCZV - SEAT models (2007–2011) with 2.0 TSI/TFSI engines including Leon, Altea, and Superb Replaces OE numbers: 06H107065AM, N90558301, 06H198151C Also replaces: 06H107065AA, 06H107065AB, 06H107065BE, 06H198151B, 06H198151D, 06H198151BS, 06H198151H