COMETIC Primary Gasket Kit C9173

Primary gasket failure is one of the most common culprits behind oil leaks and pressure loss in high-performance engines. The COMETIC Primary Gasket Kit C9173 eliminates this vulnerability with factory-grade sealing that handles extreme heat and maintains its integrity through thousands of duty cycles. Whether you're running a street engine or competing at the track, this kit delivers the reliable containment your drivetrain demands.

The secret to COMETIC's durability lies in their proprietary AFM (Aluminum Foamette Material) construction—an aluminum core bonded with chemically blown nitrile synthetic rubber that resists temperatures exceeding 2500°F while recovering 85% of its original shape after compression. This combination ensures strong torque retention on machined surfaces without requiring additional gasket sealer, saving you both installation time and the risk of sealer-related failures.

This complete primary kit arrives with every gasket, seal, and O-ring needed for inner and outer primary assembly, eliminating the guesswork and multiple part orders. Built in the U.S.A. to COMETIC's exacting standards, it's engineered for engines that refuse to leak.

• AFM gasket material
• Aluminum foamette core
• Nitrile synthetic rubber bonded
• 2500°F+ heat resistance
• 85% shape recovery
• No gasket sealer required
• Strong torque retention
• Machined surface optimized
• Complete primary kit
• All gaskets, seals, O-rings included
• Inner and outer primary
• Made in U.S.A.
• MPN: C9173