Plastic heater core coupling

[thatotherguy88]

So my 05 I noticed a hair line crack in one of the plastic heater core hose coupler thing. No big deal iv changed many of them at work. I'm wondering if there needed. I do not have dual ac or heat so there's no need for a tee or anything. Could I just put the hose directly on the core and install a clamp and clamp it down in theory doing away with the plastic coupler?

 

[rockola1971]

So my 05 I noticed a hair line crack in one of the plastic heater core hose coupler thing. No big deal iv changed many of them at work. I'm wondering if there needed. I do not have dual ac or heat so there's no need for a tee or anything. Could I just put the hose directly on the core and install a clamp and clamp it down in theory doing away with the plastic coupler?

Ive never owned a K chassis SUV without dual climate. Im wondering why a factory single zone would have Tees at the heater core. Cant imagine why they would be required. You can clamp the heater hoses on instead. Just make sure the clamp is positioned behind the rim on the heater hose nipple when clamped on the hose. Otherwise pressure will blow the hose off the nipple at the most inconvenient time.