Wehrli Custom Fabrication WCF100541-RED Upper Coolant Pipe Kit L5P Duramax WCFab Red

The Wehrli Custom Fabrication WCF100541-RED Upper Coolant Pipe Kit is a direct-fit fabricated aluminum hard pipe upgrade designed to replace the stock OEM rubber upper radiator hose on L5P 6.6L Duramax diesel trucks. Finished in WCFab's signature WCFab Red powder coat, this kit delivers a clean, custom engine bay appearance while providing a more durable and reliable coolant routing solution.

Unlike the factory rubber hose, this kit features a precision-fabricated aluminum hard pipe that resists wear and heat degradation. It is designed to work with the OEM GM radiator for a proper, leak-free fit with no additional modifications required.

Key Features:

• Fabricated aluminum hard pipe construction replaces OEM rubber upper radiator hose
• WCFab Red powder coat finish for a clean, show-quality engine bay appearance
• Includes high-quality silicone boots and stainless steel T-bolt clamps
• Designed for use with OEM GM radiator
• Fits stock trucks with no other modifications necessary
• Installs easily with basic hand tools
• Replaces GM OEM part numbers: 84813629, 85122989
• Made in the USA

This upper coolant pipe kit is an excellent upgrade for any L5P Duramax owner looking to clean up their engine bay and replace aging or deteriorating factory coolant hoses with a long-lasting fabricated aluminum solution.