Feature●[Vehicle Fitment-1]: Compatible with BMW 320i/325i/330i 2001-2005, 323Ci/328Ci 2000, 323i/328i 1999-2000, 325Ci/330Ci 2001-2006●[Vehicle Fitment-2]: Compatible with BMW 525i/530i 2001-2003, 528i 1999-2000, Z3 1999-2002, Z4 2003-2005●[Reference Number]: 11531705210, 11537502525, CHP0567, CHP0597●[Note]: The O-rings were pre-installed on the Water Coolant Pipe●[Customer Support]: A-Premium Water Coolant Pipe comes with a 1-Year Unlimited-Mileage Warranty. Being brand-new and sturdy, this Water Coolant Pipe is the ideal choice for direct replacement. We extremely value your satisfaction and strive to provide you with a good shopping experience.Description