Description: STD specification 0.00 (no cylinder expansion fit) Piston diameter 82.51mm (3.25in / 3.25in) Pin diameter Φ23mm Note: Please confirm your piston is Φ23mm before purchasing.NO.06H 107 065 .Replace part number.06H 107 065 JJ / CM / BH / BD.06H 198 151 J/ C SIZE.Piston diameter: 82.51mm.Piston diameter: 23mm Fitment: For 2011-2013 A3 Base 2011-2013 A3 A4 Also use (Qty.) (1) 06H 198 401 D connecting rods 2010 A4 For cars up to 30/05/2011, also use (Qty.) (1) 06H 198 401 D connecting rods 2011 Base A4 Also use (Qty.) (1) 06H 198 401 D connecting rods 2009 2012-2016 A4 A4 Also use (Qty.) (1) 06H 198 401 D connecting rods 2009 A4 Base 2.0L L4 Also use (Qty.) (1) 06H 198 401 D connecting rods 2009 A4 Also use (Qty.) (1) 06H 198 401 D connecting rods 2010 A4 For cars up to 30/05/2011, also use (Qty.) (1) of connecting rods 06H 198 401 D 2011-2011 2012-2016 A4 2010-2014 A5 2012-2016 A5 2011-2015 A6 2013-2015 A6 2.0L L4 Allroad 2013-2016 T3 2015-2016 2015-2016 Q3 2011-2016 Q5 2.0L