I'd appreciate it if someone could let me know the part number of the small hose that islocated at the rear of the engine and connects to the heater core thru the firewall. It is a small (~1 inch) diameter hose and about 6 inches long. I've had my car for about 2 years and want to replace it because the previous owner put a shut off valve on it which I want to get rid off. I think he put it there because of the common broken clip problem which causes the heater to b on all the time. I fixed that so I'd like to take the valve out before it fails. Also, let me know if you also know where to order one. Thanks very much for response.

 

Not sure what car or year you have, but here's a start:
http://www.944online.com/cgi-local/A...ingsystem-9442

 

Duh! It is a 1988 NA - darn I hate getting old or maybe it was the Cabernet with dinner. Thanks Shiners, I think that photo should give it to me.