Where to get this connector

Digi-Key has them, so do many others. Here is a link.
https://www.digikey.com/product-detail/en/te-connectivity-amp/827551-3/A106202-ND/2054418&?gclid=Cj0KCQjwp5_qBRDBARIsANxdcikpYyndcMHzVTc_JQQjz7vXdPce1YLMK8YjDOmndSEA6kwGCog9ct8aAtsBEALw_wcB

 

I have one Mike... and yes its blue and its new!

 

Try an internet search on "TE Connectivity 827551-5" or "AMP 827551-5" for blue. Don't know if there might be a minimum or how much hassle it might be, but this came up:

https://www.connectorpeople.com/Connector/TYCO-AMP-TE_CONNECTIVITY/8/827551-5

 

Yep!

 

I disconnected mine while fiddling with the mixture last year - doesn't seem to make any difference

 

Hello Mike,
I have a few used ones, from the salvage yard, are you interested?

John.