
Specifications
- Brand
- Wehrli
- Part #
- WCF100416-RAW
- UPC
- WCF100416-RAW

Wehrli 11-16 Chevrolet 6.6L Duramax LML Billet Upper Valve Cover Set - Raw Aluminum
$446.08
Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.
Fits 2011-2016 Chevrolet Silverado 2500 HD. Wehrli billet aluminum upper valve covers clean up engine appearance with a raw finish ready for customization.
Key Features
- Fits 2011-2016 Chevrolet Silverado 2500 HD and 3500 HD, and 2011-2016 GMC Sierra 2500 HD and 3500 HD.
- CNC machined from solid billet aluminum for a strong and clean appearance.
- Integrated o-ring seal replaces OEM gaskets, eliminating the need for silicone sealers.
- Includes flush-head stainless steel fasteners and black anodized #10 JIC PCV fittings.
- Raw aluminum finish is ready for custom polishing, painting, or powder coating.
- Made in the USA.
⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more
Product Details
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.
Specifications
- Brand
- Wehrli
- Manufacturer Part #
- WCF100416-RAW
- UPC
- WCF100416-RAW
Frequently Asked Questions
You Might Also Like
Similar products from the same category

Wehrli 06-10 LBZ/LMM Duramax MAP Sensor Seal & Bracket

Wehrli 2001+ GM Duramax LB7/LLY/LBZ/LMM/LML/L5P Billet Oil Fill Cap - Black Anodized

Wehrli 11-19 GM Duramax 6.6L Lower Splash Shield Kit - Illusion Purple

Wehrli 04.5-2010 Duramax LLY/LBZ/LMM Crankcase Vent (PCV) Fitting Kit - Billet Black Anodized
Wehrli 11-16 Chevrolet 6.6L Duramax LML Billet Upper Valve Cover Set - Raw Aluminum
