Kooks Headers Spark Plug Sleeves

Kooks Headers Spark Plug Sleeves Protect, seal, and prolong — Kooks Headers Spark Plug Sleeves are engineered to deliver reliable insulation and a precision seal between your header tubes and spark plug wells. Built by Kooks Headers, a leader in high‑performance exhaust systems since 1962, these sleeves are crafted for street, race, and off‑road applications. Key Features High‑temp resistant materials for long life under extreme exhaust heat Precision fit to prevent exhaust leaks and maintain proper spark plug alignment Durable construction that resists cracking, warping, and oil contamination Made in the USA by Kooks — handcrafted quality and performance Benefits Using Kooks spark plug sleeves helps reduce exhaust leaks, prevent misfires caused by poor grounding or heat damage, and protects expensive engine components. Ideal for performance builds where reliability and durability matter. Why Choose Kooks For over 50 years Kooks Headers has set the standard in performance exhaust technology, winning championships across NHRA, IHRA, NMCA, NASCAR and more. Trust Kooks for parts that match the quality of your build.