1Applicable Model: Clutch master cylinder is fit for A3/S3 19992003; fit for OCTAVIA 19972011; please confirm whether your model is applicable before buying. 2OE Number: The part number of master cylinder for reference is 1J1 721 388A, please confirm whether it is consistent with the OE you need. 3Durable Construction: Made with ABS, this clutch master cylinder provides long lasting durability and can withstand the demands of daily driving and extended use. 4Efficient Performance: This clutch master cylinder is engineered to deliver a reliable clutch operation experience, ensuring a smooth and accurate clutch process. 5Easy Installation: Designed for a hassle free installation, this clutch master cylinder is a direct replacement for your original part. Simply remove the old cylinder and install this one. Item Type:ClutchMasterCylinder OE: 1J1 721 388A Fitment: Fit forBOAR 1999-2005 MK4 Fit for A3/S3 1999-2003 Fit for TT 1999-2006 Fit for OCTAVIA 1997-2011 Replacement forSEAT---LEON 2000-2006 Replacement for SEAT---TOLEDO 1999-2004 1 x ClutchMasterCylinder