This Four Seasons 35993 HVAC System Switch replaces ACDelco 1551021, ACDelco 1551105, ACDelco 1711474, ACDelco 4900, ACDelco 4901, ACDelco 801815, ACDelco MT0359, ACDelco SW10000C, Global Parts Distributors LLC 1711474, Santech MT0359, UAC SW10000C, Gilmore Products 801815, Ready-Aire 4900, Ready-Aire 4901, OEM parts and is perfect for replacement or a performance upgrade. .
