Wehrli Custom Fabrication WCF100860-CAT Upper Coolant Pipe Caterpillar Yellow

The Wehrli Custom Fabrication WCF100860-CAT is a 14-gauge aluminum upper coolant pipe designed for 2001-2005 GM LB7/LLY 6.6L Duramax engines. This performance cooling upgrade replaces the failure-prone OEM rubber upper coolant hose with a durable aluminum construction that improves heat dissipation and coolant flow while adding a custom appearance to your engine bay.

Key Features:

• 14-gauge aluminum coolant pipe construction for superior durability
• Caterpillar Yellow powder coat finish for a distinctive, professional appearance
• High-temperature silicone boots included for secure connections
• Stainless steel T-bolt clamps for reliable, leak-free installation
• Direct replacement for OEM rubber hose - improved heat and vibration resistance
• Made in the USA with precision TIG welding
• Custom fabricated to exact specifications for perfect fitment

This upper coolant pipe kit provides a complete solution to eliminate the common failure point of the factory rubber hose. The aluminum construction resists heat degradation and maintains consistent coolant flow even under extreme operating conditions. Each pipe is professionally powder coated in Caterpillar Yellow for a durable, eye-catching finish that complements custom engine builds. Backed by Wehrli Custom Fabrication's 12-month warranty against defects in materials and workmanship.