This AC heater climate control module switch unit is compatible with Corvette C5 models equipped with 5.7L V8 engines from 1997 to 2004.It replaces OEM part numbers 16256018 and 09352181, as well as additional compatible part numbers including 16254311, 162660310345293, 09380441, and 162660.The unit restores HVAC functionality for fan speed, temperature control, and air distribution modes.Designed for direct plug-and-play installation, it integrates with the factory dashboard without modifications and supports electrical connections for consistent climate system function.