In article , alan_m
writes
On 03/10/2020 22:28, RJH wrote:

Might that explain why any garage I've had dealings with won't fit parts I'd
supply?


Too many customer supplied counterfeit parts purchased on Ebay?

Need for traceability of parts from known suppliers for safety,
liability or insurance purposes?

And then they find they're not an exact replica and actually don't fit.
Britpart were notorious for this on LR parts.
--
bert