Although the title says it is a timing belt pulley, the description is more accurate as it is a timing belt tensioner/damper. This is a revised model from what you can find in OEM stock. I installed one of these on a 2002 PT Cruiser to replace the original design and found it to last longer than the original version. I highly recommend replacing the timing belt idler pulley, timing belt, and water pump at the same time as replacing the water pump, which typically lasts around 80-90k miles, requires removing everything.