2002-2011 GMC Sierra/Yukon XL V8 Aluminum Exhaust Header Gasket
SHIPPING - RETURNS - WARRANTY - CANCELLATION POLICY
*** Market Conditions after 2020 have changed the landscape of automotive parts. Although we try to stock 1000's of items in our multiple warehouse and use multiple distribution channels, having back-orders are unavoidable in today's market. If you are in need of a product quickly, we suggest email, message, or call us for availability so that we may explore your options.
Email: Sales@Speedzoneweb.com
Call: 407-846-8430
Text: 407-749-6314
Frequently Asked Questions
2002–2011 GMC Sierra/Yukon XL V8 Aluminum Exhaust Header Gasket
Aluminum construction gasket designed to seal V8 exhaust headers without warping or cracking. Built to handle thermal cycling and maintain a tight seal across multiple heat cycles. Resists degradation from sustained high temperatures better than composite alternatives.
Key Features
- Aluminum core - Won't warp under sustained header heat, keeping your seal solid.
- Thermal stability - Handles repeated heat cycles without compression loss.
- OEM-spec thickness - Engineered to match factory gasket dimensions for proper fitment.
Specs
- Material: Aluminum
Whats Included
- Exhaust header gasket (one piece)
Frequently Asked Questions
Do I need to clean the header and manifold surfaces before installation?
Yes. Scrape off old gasket material and any carbon buildup, then wipe both surfaces clean with a degreaser. A smooth, clean surface ensures the aluminum gasket seats properly and holds pressure.
Will this gasket work with my existing header bolts?
Gasket thickness is engineered to OEM spec, so your factory header bolts should work. If you're reusing old bolts, inspect them for damage or corrosion first — replace any that show wear.
Can I use gasket sealer or sealant on this?
The aluminum core is designed to seal without additional products. Adding sealant can actually create compression issues. Install dry and torque to manufacturer spec for best results.
Our History
For 26 years Speedzone Performance LLC has been providing aftermarket car parts to Central Floridians and 1000's of customers online. What makes us different than all the other places online? We have 3 actual brick and mortar locations where were serve customers daily and find new ways to provide support and assistance to the automotive community at large. From our in house SPDZ1 Brand, to our constantly growing in stock inventory, we strive to make our customer service and ease of purchase stand out from the rest! We are also one of the largest automotive part financing providers anywhere in the United States, and continue to provide more options for our customers every year. We love what we do, and it shows in every product we sell and every new customer who becomes a part of our Speedzone Family.