Wehrli

Wehrli 2004.5-10 Duramax LLY/LBZ/LMM Billet Upper Valve Cover Set - Raw Aluminum

SKU: wcfWCF100415-RAW UPC: WCF100415-RAW
Backordered – call for lead time

⚠ Call for Availability

Expected ship time: usually within 24–48 hours; some vendor items may take longer.

Call: (503) 235-1947 | Email Us: info@dfispdx.com

$375.00

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Verified Fitment & Application Support

This product is selected for proper fitment and compatibility with the listed engine application. Our team is available to assist with fitment questions, installation considerations, and supporting components to ensure a smooth install and reliable performance.

Got Questions? Feel free to email us or call us at (503) 235-1947

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.

Key Features

  • Integrated o-ring seal replaces OEM gaskets and prevents the need for use of silicone sealers.
  • Includes countersunk stainless steel fasteners and black anodized #10 JIC (-10AN) PCV fittings.
  • Finished in raw aluminum ready for polishing or painting standard.
  • Custom Color Powder Coat finishes 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.

Fitment

Fits 2004.5-2010 Chevrolet Silverado 2500 HD / Chevrolet Silverado 3500 HD / GMC Sierra 2500 HD / GMC Sierra 3500 HD equipped with the LLY, LBZ, and LMM 6.6L Duramax Diesel engine.

Product Details

  • Brand: Wehrli (WCFab)
  • Manufacturer Part Number: WCF100415-RAW
  • Finish/Color: Raw Aluminum
  • Product Type: Engine Valve Covers

Orders typically ship within 24–48 hours of being received, but because of vendor shipping times some orders may take longer. We ship within the United States only (48 contiguous states plus DC).

Shipping Height: 10.0

Shipping Length: 30.0

Shipping Width: 10.0
California Proposition 65
WARNING: This product can expose you to chemicals that are known to the State of California to cause cancer and/or reproductive harm. For more information, visit www.P65Warnings.ca.gov.