1978-1980 C3 EGR TVS Intake Valve Switch - OEM Number(s) (373510)
Designed for 1978-1980 Corvettes, this stock replacement switch threads directly into the intake manifold and regulates thermal vacuum to the EGR valve. As engine temperature changes, the switch controls when vacuum reaches the EGR system, helping the engine manage emissions while maintaining proper drivability. When this valve fails, it can cause rough idle, poor performance, or an EGR system that isn’t functioning correctly. Replacing it with the proper 3/8" thread, 2 port vacuum valve restores the correct operation of the EGR system and keeps your Corvette running smoothly and efficiently.
- Correct replacement EGR TVS intake valve switch for 1978-1980 Corvettes
- Threads into the intake manifold to control EGR thermal vacuum
- Helps regulate EGR valve operation based on engine temperature
- Restores proper emissions function and engine drivability
- 3/8" thread with 2 port vacuum valve design
- GM part number reference 373510
Also known under these part numbers: (For reference only)