WCFab Billet Aluminum Upper Valve Cover Set fits LML Duramax and is 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. Custom Color Powder Coat finishes are available as an optional upgrade and carry additional lead time. 

***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 WCF100692

• Left and Right Upper Valve Covers
• CNC Machined Billet Aluminum
• Built in clearances for performance engines equipped with rocker studs
• Flush Head Stainless hardware
• Black Anodized #10 JIC / -10AN Fittings
• O-ring Seal
• Raw Finish Standard 
• Optional Custom Color Powder Coat Finishes Available for Additional Charge
• Made in USA