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ARP 12-point valve cover bolt kit for Duramax 6.6L LBZ/LLY/LML/LMM provides replacement fastening hardware tailored to those engines. The kit supplies the twelve-point bolts needed to secure a valve cover and restore proper clamping. Intended as a direct-fit hardware solution, it helps maintain valve-cover sealing integrity when servicing the top end of Duramax 6.6L diesel engines.
ARP Duramax 6.6L LBZ/LLY/LML/LMM 12pt Valve Cover Bolt Kit
