Product Description
Upgrade the cooling system reliability of your Duramax with the WEHRLI CUSTOM FAB WCF100696 UPPER COOLANT PIPE designed specifically for the 2011-2016 LML Duramax platform. The factory coolant pipe used on many LML trucks is known for becoming restrictive and prone to failure under higher boost and increased engine heat. Wehrli Custom Fabrication engineered this upgraded pipe to provide improved coolant flow, increased durability, and a clean engine bay appearance.
Constructed from high-quality mandrel-bent aluminum, the Wehrli upper coolant pipe replaces the restrictive OEM piece and improves coolant circulation between critical engine components. The upgraded design helps support trucks with performance tuning, larger turbochargers, or heavy towing demands where cooling efficiency becomes critical.
Hidden SEO Tags: LML Duramax coolant pipe upgrade, Wehrli cooling system upgrade, Duramax coolant pipe replacement kit, LML aluminum coolant pipe upgrade, Wehrli Custom Fabrication Duramax cooling parts, Duramax performance cooling system improvement.
Key Features
- Direct replacement upper coolant pipe for LML Duramax
- High-quality mandrel-bent aluminum construction
- Improved coolant flow compared to restrictive factory pipe
- Increased durability for high horsepower and towing applications
- Clean fabricated finish for professional engine bay appearance
- Designed by Wehrli Custom Fabrication
Fitment
- 2011 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LML
- 2012 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LML
- 2013 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LML
- 2014 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LML
- 2015 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LML
- 2016 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax LML
- 2011-2016 GMC Sierra 2500HD / 3500HD 6.6L Duramax LML
Installation Note: Designed as a direct replacement for the factory upper coolant pipe. Installation is straightforward and can typically be completed with basic hand tools.
Frequently Asked Questions
What problem does the Wehrli upper coolant pipe fix?
The factory coolant pipe can become restrictive and weak over time. The Wehrli aluminum pipe improves coolant flow and durability for performance or heavy towing applications.
Is this pipe stronger than the factory coolant pipe?
Yes. The upgraded aluminum construction is significantly stronger than the OEM piece and more resistant to cracking or fatigue under high heat.
Will this help with cooling performance?
Yes. The smoother internal design and larger flow capacity can improve coolant circulation which helps maintain stable engine temperatures under load.
Is this a direct bolt-on upgrade?
Yes. The Wehrli WCF100696 is designed as a direct replacement for the factory upper coolant pipe on LML Duramax trucks.
Does this part require tuning or additional modifications?
No tuning is required. This component simply improves coolant system durability and flow.
Specifications for WEHRLI CUSTOM FAB WCF100696
| Specification | Details |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | WCF100696 |
| UPC | Not Listed by Manufacturer |
| GTIN | Not Listed |
| Shipping Weight | Approx. 4 lbs |
| Package Dimensions | 18 x 8 x 6 inches |
| Shipping Method | UPS / FedEx Ground |
| Prop 65 Warning | This product may contain chemicals known to the State of California to cause cancer or reproductive harm. For more information visit https://www.P65Warnings.ca.gov |
