I have a 2016 RAM 3500 6.7L; I need help identifying this part.
Noticed today that the part where the heater return line goes into (solid metal) 1 in from the radiator direction and 2 out towards the firewall is leaking.
If I remember correctly, there is an O ring in the top fitting that can leak.
This is where my leak is coming from; where can I get an O ring if I'm right, or how do I fix this?
Refer to pics.
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