Wehrli 11-16 Chevrolet 6.6L Duramax LML Billet Upper Valve Cover Set - Raw Aluminum

Wehrli Custom Fabrication is known for building robust performance parts for diesel trucks. If you're working on the 6.6L Duramax LML engine in your 2011-2016 Chevrolet Silverado 2500 HD or 3500 HD, or GMC Sierra 2500 HD or 3500 HD, this billet upper valve cover set is a solid option for cleaning up your engine bay.

These valve covers are CNC machined from solid billet aluminum, giving them a strong and clean look. They replace the stock plastic covers and feature an integrated o-ring seal, which means you won't need to use any silicone sealer during installation. The set comes with flush-head stainless steel fasteners and black anodized fittings for the PCV system. The raw aluminum finish is ready for you to polish, paint, or powder coat to match your build.

Keep in mind that these valve covers do not retain the factory brackets for the side-mount PCV routing. You'll want to plan for alternative routing or pair these with Wehrli's top outlet thermostat housing and upper coolant pipe kits for a cleaner setup. This set is made in the USA.