Carrier 331709-789 TXV Kit 321142-301 If the ports are corroded

If the ports are corroded or the metal is warped

also identified as the Model EX5-U21 and cross-referenced with part number 800618

The externally equalized 3/8-inch ODF solder connections ensure a hermetic seal

Rotation is determined by looking at the wheel from the hub/shaft side

Carrier 331709-789 TXV Kit 321142-301 If the ports are corrodedEnsure peak evaporator performance with the Carrier 331709 789 TXV Kit, a factory authorized solution designed for 3 to 3. 5 ton residential and light commercial systems. This OEM thermostatic expansion valve is highly compatible with R410A refrigerant, utilizing an internal check valve to manage liquid flow effectively during cooling cycles. Engineered to replace outdated part numbers like 331709 772 and 1185501, this TXV replacement kit features a 3