Lennox 12J43 TXV mario The durable lead wire insulation

The durable lead wire insulation and moisture-resistant encapsulated sensor head are built to withstand extreme ambient conditions

Always verify rotation against the lead diagram on your condenser motor before tightening the set screw

this motor provides the exact torque and static pressure performance required to clear the heat exchanger and prevent high-limit tripping

this HVAC replacement parts kit eliminates the need for sourcing individual gaskets or specialized fasteners when performing a heat exchanger swap or 1-stage furnace repair

or must the entire valve be changed

Lennox 12J43 TXV mario The durable lead wire insulationThe Lennox 12J43 Thermal Expansion Valve (TXV) is a critical metering component engineered specifically for 2 ton residential and commercial R410A refrigerant systems. This OEM Lennox expansion valve features a 3 8" ODM (Outside Diameter Male) inlet and a 1 2" ODF (Outside Diameter Female) outlet, ensuring a precise fit for outdoor NXT units and matching indoor coils. By continuously monitoring evaporator superheat, the 12J43 TXV regulates refrigerant