Source for the connectors MCP 2.8 for Power and CAN2 - typically in stock and can be purchased individually:
https://www.digikey.com/product-deta...516-ND/7802210

Crimp contacts for example:
https://www.digikey.com/product-deta...9CT-ND/6797642

Wire seals:
https://www.digikey.com/product-deta...2500-ND/745035

Image of the assembly - the red piece needs to be pulled out

Click image for larger version. 

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To remove the contacts, a small spring lock must be released by pushing a small screwdriver into the front next to the contact opening.