Description
WCFab LLY/LBZ/LMM Duramax Billet Upper Valve Cover Set WCF100415
Fits: 2004.5-2005 Chevy/GMC 6.6L Duramax LLY; 2006-2007 Chevy/GMC 6.6L Duramax LBZ; 2007.5-2010 Chevy/GMC 6.6L Duramax LMM
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. Custom Color Powder Coat finishes are available as an optional upgrade and carry additional lead time.
We recommend pairing these with our Top Outlet Billet Thermostat Housing and Upper Coolant Pipe kits (or a forward-facing thermostat setup) because these valve covers do not include brackets for the side mount routing of the OEM setup.
***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
Lead time (per manufacturer): Raw in stock and ships in 3-5 business days. 10-15 business day lead time on other colors.
Wehrli Custom Fabrication (WCFab) — USA made. Part number: WCF100415.
California and Emissions Notice
This product is not legal for sale or use in California, or on any pollution-controlled motor vehicle where state or local law prohibits it. It does not have a California Air Resources Board (CARB) Executive Order. You are responsible for checking and following the emissions laws in your state before you buy and install it. Questions? Call us at 479-799-3953.
