2004.5-2010 Duramax Billet Upper Valve Cover Set Raw Aluminum (WCF100415-RAW)

Billet aluminum upper valve covers for the 2004.5-2010 LLY, LBZ and LMM Duramax, sold as a left and right set in raw aluminum ready for polish or paint. An integrated O-ring seal replaces the factory gaskets, so no silicone is needed, and they come with flush stainless hardware and black anodized -10AN PCV fittings.

CNC machined from 6061-T6 billet in the USA. Supersedes WCF100616. Powder coating is available as an option with extra lead time.

Part Number: WCF100415-RAW

• Left and right upper valve covers
• CNC machined 6061-T6 billet aluminum
• Integrated O-ring seal replaces the OEM gaskets
• Flush head stainless hardware
• Black anodized #10 JIC (-10AN) PCV fittings
• Raw aluminum finish, ready for polish or paint
• Supersedes WCF100616
• Made in USA
• Finish: Raw (unpainted)

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