Is your Mini Cooper's coolant cap cracked or not sealing right? This replacement radiator expansion tank cap is made to fit perfectly. It matches the original OEM number 17107515499 and is designed for Mini models like the R52 Cooper S Convertible, R53 Cooper S, and R50 One (basically, models from around 2002 to 2008). It's made from high-quality ABS plastic, which is durable, heat-resistant, and won't corrode like some cheaper caps. Installation is a direct swap – just unscrew the old one and screw this one on. It's a small part, but a faulty cap can cause coolant loss or overheating, so getting a proper fit is important. Double-check your model and year to make sure it's the right one for your Mini.
