Is this the heater to tank hose?

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DavidZ71

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Noticed some coolant loss in my reservoir. No other symptoms of cracked head, etc. Took a look around and looks like one of my heater hoses is deteriorating and definite leakage around the connection. The spring clamp was so frail that it broke in half when I poked it lightly.

Is the hose in the picture (going from the reservoir to the thermostat/water pump ACDelco 18221L? Just want to make sure before I order the part. It's for a 2004 Z71. Looks like the large diameter hose and small heater hose come as a unit with a fitted y-joint to the water pump area.

 
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DavidZ71

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I don't think either of those are correct. The hose I'm looking for has a unique y-connection with one of the heater hoses where it meets the water pump. You can see it in the second pic I posted. The part number I listed looks exactly like what I need, I just wanted to be sure
 
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DavidZ71

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Perfect! The ACDelco one you listed is what I thought it was. Ordered and on its way. Thanks!
 

OR VietVet

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No problem. Glad I could help. That is the same one I recently replaced when I did the complete hose changeover. Once I saw the second pic and looked under my hood to compare pics, I knew I could find it.
 

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