Features: 1. Fitment: Suitable for 328i 1997-2006; Suitable for 323i 1997-2006; Suitable for 328Ci 2000-2006; Suitable for 325Ci 2000-2006; Suitable for 330Ci 2001-2006; Suitable for 330i 2001-2006. 2. Reference OE Number: Replacing part numbers for reference are 13621743299, 17111711987, 11537802638, 11537545278, 11517514942. 3. Leakproof: The cooling system hose seal gasket offers excellent sealing performance to prevent water leakage, ensuring the cooling system functions normally. 4. Premium Material: The coolant hose o-ring seal is made from high-quality rubber material, resistant to scratches and tears, capable of withstanding high temperatures, and not prone to breaking. 5. 20pcs in Total: The kit includes 20 sealing gaskets in various sizes, effectively meeting your requirements, ideal for your rebuilding, repairing, and maintenance tasks. Specification: Item Type: Cooling System O Ring Kit Material: Rubber OE: 13621743299, 17111711987, 11537802638, 11537545278, 11517514942 Fitment: Suitable for E46 M52 M54 320i 323i 325i 328i 330i xi Suitable for 328i 1997-2006 Suitable for 323i 1997-2006 Suitable for 328Ci 2000-2006 Suitable for 325Ci 2000-2006 Suitable for 330Ci 2001-2006 Suitable for 330i 2001-2006 Package List: 20 x O Ring Note: 1. Please verify the part number of your item, the matching information is for reference only. 2. If you are uncertain about the item, kindly contact us before purchasing to avoid unnecessary returns, thank you!