I have a leak in one of my hoses but I don't know the name of the replacement part. It's the one from the waterpump to the heater, with a restrictor (crimped cylindrical piece) about 6 inches from the waterpump. The leak is on the heater side of the restrictor. I called Checkers and they asked me if I needed "Heater to pipe-2", "Heater to engine", or a couple other options, so I'm not too sure. Also, I can't see where this hose connects to the heater, so how difficult is it to replace?

 

When you say heater, do you mean heater core? If so it's a dealer part the hoses that go to the heater core are connected, it's GM part# 10236039 for my 1994 TA LT1. From the dealer I paid $152.58 plus tax. Since I bought it last June, I found out about www.gmpartsdirect.com See this thread for more info.......
http://www.ws6zxr.com/showthread.php?t=25531

 

try shoebox's tech page

jb