[PAX5]

I get my BERU/HUF brand used on CL or eBay. Make sure you get the right one for the year car you have.

If you want new, lots of aftermarket versions work.

There is one little design detail you need to pay attention to: the OE Beru/HUF have a metal stem valve that is adjustable .... it swivels relative to the TPMS monitor base. The reason for this is so that it will fit the BMW OE rim profile and lay flat.

In the example below you can see how an aftermarket TPMS does not fit the BMW rim profile properly.