York S1-373-39504-002 Conversion Kit R-134A featuring the same 36-inch length

featuring the same 36-inch length and connection threads

The A72AA-22 specifically provides an open-low action with a 25/90°F range

Common Questions: Is the Nordyne 669404R compatible with my specific condenser model

Key Benefits: Precision Compatibility: Engineered as a direct-fit OEM replacement for Hydrotherm KN-4 series boiler control interfaces

this Maxitrol gas pressure regulator delivers the consistent discharge pressure needed for negative pressure burner manifold configurations

York S1-373-39504-002 Conversion Kit R-134A featuring the same 36-inch lengthThe York S1 373 39504 002 Gen2 Compressor Conversion Kit is a specialized service solution designed to streamline the field replacement of older compressor models with current Generation 2 standard components. For technicians working on York HVAC units, this kit resolves the common logistical headache of matching discontinued OEM compressor parts by providing the necessary mounting adapters, electrical harnesses, and plumbing modifications required