E-450 16" tire valve size?

I had the Borg metal stems installed on mine. The first firm I tried (a wholesaler) was not sure what the "bend angle" should be for my wheels (Alcoa) and they suggested I call the retailer in the link below. I did that and they knew exactly what I needed ..... including the rubber stabilizers. I paid Les Schwab about $65 to install the hardware. As you probably know, the inside dual cannot be spin balanced with the super long stem installed.....beads can be used but I used "Centramatics" instead. Many say the duals don't even need to be balanced so YMMV.

I love being able to check the pressure, add air or install my TPMS sensors without even getting down on one knee. Well worth the $ IMHO.

You might want to give these folks a call. They will know what you need.

https://www.shinyrv.com

Best .......... and be safe.

I would lean 453 however if u get the dually valve kit it should include both grommets otherwise they are super cheap to order both size grommets separately.

The size refers to the rubber that fits the stem hole the actual valve an lock nut fit either or