Wehrli Custom Fabrication WCF100311-FTB Upper Coolant Pipe Billet Aluminum

The Wehrli Custom Fabrication WCF100311-FTB Upper Coolant Pipe is a premium, high-quality replacement coolant pipe engineered to outperform the factory original. Wehrli Custom Fabrication is renowned in the diesel performance industry for producing precision-crafted components that deliver superior durability and long-term reliability over OEM plastic and rubber alternatives.

This upper coolant pipe is constructed from mandrel-bent aluminum tubing, offering excellent thermal resistance and corrosion resistance compared to stock plastic coolant pipes that are prone to cracking and leaking over time—especially in high-heat, high-performance engine environments. The FTB finish designation indicates a Fine Texture Black powder coat finish, providing an aggressive, clean appearance under the hood while adding an extra layer of protection against the elements.

Key Features:

• Precision mandrel-bent aluminum construction for superior strength and longevity
• Fine Texture Black (FTB) powder coat finish for a clean, durable appearance
• Direct OEM replacement — bolt-on fitment with no modifications required
• Resists cracking, swelling, and deterioration common in OEM plastic coolant pipes
• Engineered and manufactured in the USA by Wehrli Custom Fabrication
• Maintains proper coolant flow and system pressure integrity

Upgrade your cooling system with confidence using a Wehrli Custom Fabrication upper coolant pipe—built to handle the demands of stock and modified diesel engines alike. This is a direct drop-in replacement designed for easy installation and long-lasting performance.