heater core hose fitting

anybody happen to know the part # for the heater hose fitting on the firewall? i have to replace the return side (driver's side). when i was running the 1/8th on Fri, i somehow blew the sucker off! :rolly: the bung that the hose fits over/clamps to is broken off inside the hose.

i've got a temp fix for now so i can at least drive around. i just pulled the return hose out & looped the feed hose back around into the other side of the water pump. so far it ain't kinked on me, & temps have been normal (since i filled the reservoir back up). i reckon it'll work til i get it fixed & thank God it's almost summer, so i won't need the heater for a while.

on that note, can i still use the A/C with the heater core bypassed like this? and also, it's unrelated (because it's been doing this for months), but whenever the temp selector is all the way cold (i have the manual HVAC standard on a 99 NBS) regardless of fan speed/off or dash/feet/defrost, i have this slightly thumping kind of clicking noise coming from behind the dash. if i turn the temp one click warmer, it goes away. what's causing this?

this one - for the visual people

Attachment 4636

nothin... really?!

i broke the fitting once by removing the intake mainfold, i didnt find the fitting, i had enough slack in the hose i just put it on direct on the heater core with a clamp.

well i ended up finding a fitting on rockauto for less than $4, so i went ahead & got it. i'm more interested in answers to the last 2 questions

One of your encoder motors has a bad spot in it. At full sweep it is skipping gears causing the clicking.

I got my heater core hose fitting from orielly. It was cheap best i remember

I got my fitting at orielly also. They had it in stock.

yeah, i got the connectors already. i'm just now concerned with how to fix the motor-gear-skip issue