It seems likely all the OE radiators leak eventually Ben. The plastic side tank to aluminium core interface being the usual place. Remember also the same radiator was used on the Roadster as lower powered Classics so greater heat stress.
![[Linked Image]](https://i.imgur.com/CQwe1X2.jpg)
Mulfab are the only remaining company offering all aluminium replacements.
For me, it was when I went to remove that plastic drain plug to do a routine coolant change…the cross head and part of the plug broke away leaving the threaded portion stuck inside. Luckily for me, SIFAB was in business then.
Incidentally, I believe Williams may now be trialing a new source for Aluminium rads.
