Collector Gasket - 3in.

The Collector Gasket - 3in. by HEDMAN is an essential sealing component designed for exhaust manifold and header applications where reliable, leak-free connections are critical. This 3-inch diameter gasket serves as the primary seal between a collector flange and the exhaust system, preventing exhaust gas leakage that can compromise engine efficiency and performance. Technicians and performance enthusiasts rely on quality collector gaskets to maintain system integrity during both street and race engine operations.

Constructed with a steel core laminate design and measuring 0.063 inches in thickness, this gasket provides superior durability and heat resistance compared to standard copper or composite alternatives. The laminated steel core reinforces the sealing surface while distributing clamping load evenly across the 3-bolt flange pattern, reducing the risk of hot spots and gas leakage at high temperatures. The compact dimensions (4.25 x 4.5 inches) allow it to fit standard collector mounting configurations, while the robust material composition withstands thermal cycling and vibration inherent to high-performance and heavy-duty engine applications.

This gasket is ideal for builders and mechanics installing or rebuilding exhaust systems on V8 and inline engine platforms that utilize 3-inch diameter collectors with 3-bolt flanges. Installation is straightforward—position the gasket between the collector flange and exhaust port, torque the three bolts in a star pattern, and verify no leakage under load. The pair configuration ensures you have matched gaskets for dual-collector setups common in high-performance builds, making this an economical choice for complete exhaust system renewal or repair.