Tail light wiring harness connectors

They are 6.3 mm connectors and comes in every shapes, forms and colors. Google is your friend and they are not hard to find at least on my side of the ocean:

https://kojaycat.co.uk/epages/950000457.sf/en_GB/?ObjectPath=/Shops/950000457/Categories/Connectors_Bullet/63mm_Multi_Connectors

Best, Peter

 

The 6.3 mm connectors you buy now a days are compatible with your original connectors but their physical appearance can differ slightly. Best thing is to compare directly from your originals to pictures on sellers website. Ferrari maranello UK has a very limited stock of NOS harnesses for the BBi so check with them before you start to produce your own stuff. I bought two complete front light harnesses from them for a very fair price but had to change out the outer sleeve that had become hard like stone after 40 years in stock.

Best, Peter

This is the 6.3 mm original connector:
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This is an example of a newly fabricated 6.3 mm connector used in a application for one of my other cars:

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those connectors every bosch dealer in germany has them. don´t know how it is in the US?
also some car part stores have them in europe