OEM: A2722000270. Belt Tensioner Pulley. We will do everything we can to work things out! At no circumstances we are responsible for any labor costs, programming, and other expenses.
It’s the real deal. No brainer to replace this when replacing 10 yr old serpentine belt. Be aware, the OEM unit (complete with MB Star in die casting) is made by Gates. If I were to do this job again, I’d probably put a little effort into getting a Gates unit for $65 cheaper.