I have a pair of fog light front grills to fit but dont have any lights as yet.
Could some one with lights provide some measurements so I know what size to look out for please.
Originals are very rare over here and extremely expensive plus I would like yellow / amber lenses so I will see what I can track down at auto jumbles

I have a pair of fog lights in my garage that measure approximately 5" or 130 mm in diameter and roughly 2.5" or 65 mm in depth. I took these from a salvage yard 914 sometime in the 80's.

thank you, thats great

See if these help. I have a pair of refurb'ed ones I bought 6+ years ago with the intention of adding to my car (as in the road to hell is paved with...)

I also measured the grill cutout on the factory ones. The grill circle is about 4.75 in diameter, so I'm guessing only the glass (which has a 'step' to it) fits. The housing itself is a little over 2 in deep, the glass adds another quarter in or so.

You will also need to consider the mounting brackets.
Click to view attachment Click to view attachment

thank you, appreciated

I have Pilot lights 193C driving lights which fit perfectly and were a popular choice, but are unfortunetly NLA.
They were billed as 4.5 inch fog lights.