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The Supertech intake valve stem seal set for Honda LS and Mitsubishi reduced-diameter valves is a 6.6mm polyacrylic style supplied as a set of 8. Sized for reduced-diameter valve stems, these seals restore correct intake-side sealing during head rebuilds or maintenance where the 6.6mm polyacrylic specification matches the engine’s valve guide clearance requirements.
Supertech Honda LS / Mitsubishi (Reduced Dia) 6.6mm Polyacrylic Intake Valve Stem Seal - Set of 8
