heater line question?

hello, i am new to this forum and have a question about the steel heater line to the back of the water pump on a 90 mighty max. does anyone know were i can possibly find one besides a junk yard or is it a dealer item. i cant find the line in any parts break downs. after i changed my water pump it started leaking. it was a little corroded but i figured it would be ok. any and all help would be apperciated.

thanks jamie carter, seadrift tx

http://www.ebay.com/ Search 330401353279 The big thing to check is the thread size. This one is 1/2 NPT thread get a 1/2 pipe plug and if the threads fit it should work. Other wise search heater hose fitting.
You could take the pump to a good hardware and look for something to fit.
You can google Dorman heater hose fittings.