Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.
That's where your coolant goes into the heater core, which is located behind the dash. The fittings there are plastic and i just had to replace them in my '06.
Recently had the same issue. I ended up replacing both T connections. One is for the IN and other if for the OUT. Also one is a 90 degree angle the other is a 45 degree if I remember correctly. One white, one black as you can see. There will be 2 pieces per T connection that you will need, so if you replace both fitting you will end up with 4 different parts. They will be the T connection it self and the hose fitting that connects the hose to the T connector. I ended up replacing both T connections and using a simple hose clamp along with extra hose and inline fittings to make the hose longer to reach the T connection since I did not go back to the factory style quick disconnects. I only did this bc I didn't want to have to worry about the o rings in the quick disconnects and although they say quick disconnects they are a PIA to change. There is almost no room back there to get your hands and the tools to disconnect these fittings. Most people as well as myself end up cutting the plastic fittings and then basically breaking them loose from the heater cores and lines to rear heat. Good luck.
Recently had the same issue. I ended up replacing both T connections. One is for the IN and other if for the OUT. Also one is a 90 degree angle the other is a 45 degree if I remember correctly. One white, one black as you can see. There will be 2 pieces per T connection that you will need, so if you replace both fitting you will end up with 4 different parts. They will be the T connection it self and the hose fitting that connects the hose to the T connector. I ended up replacing both T connections and using a simple hose clamp along with extra hose and inline fittings to make the hose longer to reach the T connection since I did not go back to the factory style quick disconnects. I only did this bc I didn't want to have to worry about the o rings in the quick disconnects and although they say quick disconnects they are a PIA to change. There is almost no room back there to get your hands and the tools to disconnect these fittings. Most people as well as myself end up cutting the plastic fittings and then basically breaking them loose from the heater cores and lines to rear heat. Good luck.