This piston rings set includes 4 rings with a standard cylinder bore size of 82.51mm and a wrist pin diameter of 21mm.It is designed for use in specific and SEAT models with 2.0 TFSI/TSI engines.OE Reference Numbers: 06D 107 066 K N 905 583 01 (21mm wrist pin) 06J 198 151 B Replaces OE Numbers: 06D 107 066 L / S / R 06J 198 151 Specifications: - Standard size (no cylinder overbore required) - Cylinder bore: 82.51mm - Wrist pin diameter: 21mm - Ring thicknesses: 82.5x1.2mm, 82.5x1.5mm, 82.5x2.0mm Package Includes: 1 set of piston rings (4 rings total) Fitment Details: Brand & Model | Production Year | Engine | Wrist Pin Diameter --- | --- | --- | --- S3 | 2007–2008 | 2.0 TFSI BHZ 195kW (265PS) / BZC 188kW (256PS) | 21mm S3 | 2008–May 2009 | 2.0 TFSI CDLA 195kW (265PS) / CDLC 188kW (256PS) | 21mm TTS | 2008–2010 | 2.0 TFSI CDMA/CDLA 195kW (265PS) / CDLB 200kW (272PS) | 21mm TT RS | 2010–Feb 2012 | 2.0 TSI CDLG 173kW (235PS) / CDLC/CRZA 188kW (256PS) / CDLF 199kW (271PS) | 21mm TT RS | 2010–2013 | 2.0 TSI CDLC 188kW (256PS) / CDLA 195kW (265PS) | 21mm SEAT Leon / TT RS | 2007–2009 | 2.0 TSI BWJ 177kW (241PS) | 21mm