My 2019 Pleasure-Way Plateau FL (3500 Sprinter) came with Alcoa outer aluminum wheels and inner steel wheels on the rear.
On the front, the Alcoa wheels had metal valve stems - fine for use with screw on TPMS sensors.
On the rear, the outer Alcoa wheels also came with metal stems - except that they face inward rather than out and so are not suitable for installation of TPMS sensors.
The inner rear wheels are OEM steel wheels and have rubber stems and rubber extensions - no good at all for TPMS.
After reading that other owners were happy with the product, I bought this kit of all-metal stems to resolve the problems with the rear wheels.
DL1SPAL Chrome Duallyvalve Kit
You get two reverse curve metal stems to use on the rear outer Alcoa wheels - that puts teh valve stem threads in the normal outward facing orientation and you can use TPMS sensors.
You get two extra long metal stems (no extenders that could leak) for the inner OEM steel wheels. they pass through the hand holes in the outer wheels and there is a large rubber "filler plug" that fits into the hand hole of the outer wheel to keep the stem stabilised and centralised - it too works fine with my TPMS sensors.
A local tire shop installed the kit for me and I have had them installed for several months now - very happy to have the TPMS as I have no spare tire with our van!
Brian.
DL1SPAL Chrome Duallyvalve Kit