I have a small but getting worse leak in my heater hose assembly. I can not find just the junction with the leak as a stand alone part. I can get the whole unit from the Nissan Dealer for around $300 (add another $400 in labor if they do the work) It does not seem that hard to change out just wondering if anyone out there was found a cheaper fix. I am adding photo's to the post to show what part I am having issues with. The leak is at the joint of that comes from the firewall and in to the junction with 4 hoses attached.