Multiple U.S. Warehouse LocationsBroken ApexFree shipping on qualified orders over $100*
Cometic Viton steel-body valve stem seals (5 x 11.8 x 21 x 17.1) with metal jacket, packaged as a 16‑piece set. These Viton seals suit modern engine builds across automotive and off‑road applications, offering a heat‑resistant elastomer body paired with a metal jacket for installation durability. Intended as direct replacements where this size and style are specified, they support reliable valve sealing in varied environments.
Cometic 5X11.8X21X17.1 Viton Valve Stem Seal - Metal Jacket - 16 Pack
