1997-2013 C5-C6 Catalytic Converter to Exhaust Pipe Flange Gasket 20876240 - OEM Number(s) (12555555,20876240)
Ensure a tight, leak-free seal between your C5 or C6 Corvette’s catalytic converter and exhaust pipe with this OE-spec flange gasket. Over time, heat cycling and corrosion can wear out the original gasket, leading to exhaust leaks, noise, or failed emissions tests. This direct replacement solves those problems with factory-fit precision and long-lasting durability.
Why Replace?
If you hear unusual noise, smell exhaust under the car, or experience decreased performance, this often-overlooked gasket could be the culprit. Whether you're restoring, repairing, or upgrading your exhaust system, this gasket ensures proper function and a secure seal.
Features
• Fits all 1997–2004 and 2005–2013 LS2 and LS3 engines
• Designed for the catalytic converter-to-exhaust pipe connection
• Factory-correct dimensions ensure easy fit and seal
• Withstands high heat and exhaust pressure
• Constructed of durable multi-layer steel or composite material
• Replaces GM #20876240
• Sold individually – 2 required for complete Corvette installation
Tech Notes
• Recommended to replace gaskets when installing or servicing exhaust components
• Always inspect flange mating surfaces before gasket install to ensure proper seal
Preserve Performance with the Right Seal
Don’t risk power loss or exhaust leaks. This flange gasket is an easy, affordable fix that helps protect your Corvette’s performance and compliance. Replace it today and drive on with confidence.
Also known under these part numbers: (For reference only)
- 12555555
- 20876240
- 326010
- EX-2132