For Sale Adelaide S.A 5158, Royal VDO Tachometer brand new with box and additional chrome mount and holder, $150

Link:

https://www.vdo-gauges.com/instruments-displays-and-clusters/by-series/cockpi...

Hi whats the diameter of it please.

It's , 85mm you can also take it out the chrome holder and mount it in the dash as it comes with a big loc cylinder to hold it in.