Wehrli Custom Fabrication WCF100366-BC Billet Valve Cover for 5.9L/6.7L Cummins - Blue Candy

The Wehrli Custom Fabrication WCF100366-BC is a premium billet valve cover engineered as a direct-fit upgrade for 5.9L and 6.7L Cummins diesel engines. Developed in collaboration with D&J Precision Machine, this valve cover replaces the factory plastic or stamped-steel unit with a show-quality, high-strength billet aluminum piece finished in WCFab's striking Blue Candy powder coat.

Key Features:

• Machined from aircraft-quality 6061-T6 billet aluminum for superior strength and heat resistance
• Features an integrated baffled breather system to manage crankcase pressure and reduce oil carry-over
• Includes a D&J Precision custom billet breather for a complete, polished installation
• Includes a WCFab-engraved billet cap for a finished, branded appearance
• Blue Candy powder coat finish provides long-lasting color and corrosion resistance
• Precision CNC-machined for exact OEM fitment — no modifications required
• Proudly Made in the USA by Wehrli Custom Fabrication in DeKalb, Illinois

Whether you're building a show truck or a high-performance work rig, the WCF100366-BC billet valve cover delivers a significant visual and functional upgrade over the factory cover. The baffled breather design helps maintain a cleaner engine bay while the durable powder coat finish stands up to the demands of daily driving and competition use alike.