Wehrli WCF100696-GB Upper Coolant Pipe for 11-16 Chevy/GMC 2500/3500 6.6L Diesel

Vehicle Fitment

• 2011-2016 Chevrolet Silverado 2500HD/3500HD 6.6L Duramax LML
• 2011-2016 GMC Sierra 2500HD/3500HD 6.6L Duramax LML

Fitment Notes

• Designed for factory radiators on LML Duramax engines only
• Not compatible with LMM or L5P engine platforms
• Does not fit aftermarket radiators with altered neck positions

Features

• High-strength 6061-T6 aluminum construction replaces rubber coolant hose
• Gloss black powder-coated finish for a clean, custom engine bay look
• Mandrel-bent design for precision fitment and OEM hose routing
• Includes heavy-duty silicone couplers and stainless T-bolt clamps
• Resists heat, pressure, and collapse under extreme conditions

Specifications

• Part Number: WCF100696-GB
• Finish: Gloss Black Powder Coat
• Material: 6061 Aluminum
• Engine Compatibility: 6.6L Duramax LML
• Quantity: 1 upper coolant pipe assembly

Included Components

• 1x Gloss black aluminum upper coolant pipe
• 2x Silicone couplers
• 2x Stainless steel T-bolt clamps

Product Description

The Wehrli WCF100696-GB Upper Coolant Pipe is a premium replacement for the weak, failure-prone OEM rubber hose on 2011-2016 LML Duramax diesel trucks. Built from durable mandrel-bent 6061 aluminum and powder-coated in a gloss black finish, it offers superior resistance to heat, pressure, and wear. Perfect for performance or show builds, this pipe not only boosts long-term reliability but also gives your engine bay a high-end appearance.

Designed specifically for use with the factory radiator, this kit includes heavy-duty silicone couplers and T-bolt clamps for a secure, leak-proof seal. Easy to install with no permanent modifications required--an ideal upgrade for any 6.6L LML Duramax enthusiast.