Replaces Ford C2SZ19B994A. Teflon 'O' Rings For York / Tecumseh Compressor, Rotolock Compressors. (Can Also Be Used On 'Flange Type' Compressor Rotolock Fittings). FORD: Custom, Custom 300, Custom 500, Victoria, Crown Victoria, Ranch Wagon, Country Sedan, Town Sedan, Customline, Fairlane.