OEM Compatibility: Exact-fit replacement ensures seamless integration with Lochinvar Knight (KBN) and A

For streamlined field service

This model is factory-equipped with Imblue Technology

common in older pneumatic-to-electric bridges and legacy electronic systems

The P49369 is a 3/16" x 3/16" square key that is 1" in length

York S1-029-19387-038 Orifice 328140-751 OEM Compatibility: Exact-fit replacement ensuresThe York S1 029 19387 038 Orifice is a precision engineered fixed orifice metering device designed for critical refrigerant flow control in residential and light commercial HVAC systems. Featuring a . 048 inch diameter accurately calibrated for thermal expansion cooling cycles, this genuine OEM York replacement part serves as the primary pressure drop point between the high pressure liquid line and the evaporator coil. Professional technicians utilize