WCFab Billet Aluminum Upper Valve Cover sets fit LLY, LBZ, and LMM Duramax and are a great way to clean up your engine's appearance. Integrated o-ring seal replaces OEM gaskets and prevents the need for silicone sealers. Includes countersunk stainless steel fasteners and black anodized #10 JIC (-10AN) fittings. Finished in raw aluminum ready for polishing or painting standard.
***NOTE: These valve covers do not have OEM-style mounting bosses to accept factory fuel filter housing brackets and other OEM-type items. Modifications to wire harness tabs and mounting brackets are necessary for installation of this product***
Supersedes model: WCF100616
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