At my wits end…..

[Samari21]

2014 Sierra SLT 5.3L

I need the hose size and hose connector coming from the coolant reservoir into the thermostat. The parts stores around here act as if they don’t exist. 

[CamGTP]

Part stores will not have listings for them, I've worked for one for years. Likely you will only find the upper and lower hoses listed in the system and the heater core hoses.

 

Look on GM's site for more information.

 

https://www.gmpartsdirect.com/v-2014-chevrolet-silverado-1500--lt--5-3l-v8-flex/cooling-system--radiator-and-components

 

And if that doesn't help, just take the hose off and measure it. Don't make it harder than it needs to be.

Edited November 21, 2022 by CamGTP

[Samari21]

So is it just 1/2 inch heater hose?