WCFab Fabricated Aluminum Coolant Tank Kit Flat Black for 2017-2019 Chevrolet/GMC 2500/3500 (6.6L) WCF100433-FB

Fits 2017-2019 Chevrolet Silverado and GMC Sierra 2500/3500 HD (6.6L).

The WCFab Fabricated Aluminum Coolant Tank Kit for the L5P Duramax provides a durable, professional-grade solution to the common issues found with factory plastic reservoirs. Over time, original equipment (OE) tanks are prone to yellowing and clouding, making it difficult to monitor fluid levels and detracting from the engine bay's appearance. More critically, the factory units feature non-replaceable sensors that often fail, triggering false low-coolant warnings and requiring the replacement of the entire reservoir assembly.

This Wehrli Custom Fabrication kit (MPN WCF100433-FB) mounts directly to the OEM location and utilizes a serviceable, high-quality float-type sensor for long-term reliability. Constructed from heavy-duty aluminum and finished in a flat black powder coat, the tank includes a billet aluminum sight glass for quick visual checks and a black anodized billet cap for a clean, finished look.

• Direct replacement for GM part numbers: 84257137, 84214124, 84138913, 84174037
• Fabricated aluminum coolant tank with flat black powder coat
• Billet aluminum coolant level sight glass for easy monitoring
• Serviceable low-coolant level sensor (float-type)
• Black anodized billet aluminum cap included
• Includes installation hardware and overflow hose
• Made in the USA