Carrier EF17BZ273 Reversing Valve 319852-301 Featuring a 1/2" BSPT connection

Featuring a 1/2" BSPT connection

Direct Drop-In Replacement: Confirmed cross-reference for ZR94KCE-TF5-750 and various OEM part numbers like 99K43

using authentic Carrier replacement parts like the 50PQ500403 means less time wrestling with fitment issues and more time ensuring the system runs quiet and balanced

making it compatible with standard flame rods

Carrier EF17BZ273 Reversing Valve 319852-301 Featuring a 1/2" BSPT connectionThe Carrier EF17BZ273 Reversing Valve is an essential OEM HVAC replacement part designed for precise refrigerant flow control in heat pump systems. As a veteran grade 4 way reversing valve, this component facilitates the critical transition between heating and cooling cycles by redirecting high pressure discharge gas. Engineered for compatibility with specific Carrier, Bryant, and Payne units, including the PH1REA072000ABWA and PH1RPA072000ABWA