I purchased this item on July 27, 2017. On November 16th I heard a knock in the engine and took the car to the mechanic. My mechanic told me the water pump was broken and the timing belt was damaged. I had to replace the timing chain and water pump which required an additional $200 of work. Your product appeared to be defective. The mechanic provided me with the worn parts that I have. I need to know if your product is still under warranty. Please let me know, thank you very much.