Product Description
The WEHRLI CUSTOM FAB WCF100541 L5P DURAMAX UPPER COOLANT PIPE KIT is designed to replace the restrictive and failure-prone factory upper coolant pipe found on 2020-2024 L5P Duramax engines. Wehrli Custom Fabrication engineered this high-quality aluminum upgrade to improve cooling system durability and eliminate the weak factory plastic components that can crack or fail under high temperature and pressure conditions.
Constructed from precision-formed aluminum tubing with CNC machined connections, this coolant pipe upgrade provides superior strength and reliability for both daily driven trucks and high-performance builds. The kit installs in place of the factory component and helps maintain proper coolant flow throughout the engine while adding long-term durability to your L5P cooling system.
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Key Features
- Direct replacement for factory upper coolant pipe
- Heavy-duty aluminum construction for improved durability
- Designed specifically for 2020-2024 L5P Duramax engines
- Improves cooling system reliability
- Precision CNC machined connections for proper sealing
- Ideal for stock, towing, or performance builds
- Eliminates common failure point in factory coolant system
Fitment
- 2020 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2021 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2022 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2023 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2024 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2020-2024 GMC Sierra 2500HD / 3500HD 6.6L Duramax L5P
Installation Note: This kit installs as a direct replacement for the factory upper coolant pipe and can typically be installed with standard hand tools. Always verify coolant system pressure and check for leaks after installation.
Frequently Asked Questions
Why upgrade the factory L5P coolant pipe?
The factory coolant pipe is made from plastic and can crack or fail over time due to heat and pressure. The Wehrli aluminum replacement provides significantly improved durability and reliability.
Is this a direct bolt-on upgrade?
Yes. The WCF100541 is designed as a direct replacement for the OEM coolant pipe and installs using the factory mounting points.
Will this affect engine cooling performance?
This upgrade maintains proper coolant flow while improving the strength of the cooling system components, helping prevent failures under heavy load or high temperature conditions.
Does this kit include installation hardware?
Yes. The kit includes the necessary connections and hardware required to properly install the upgraded coolant pipe.
Is this upgrade recommended for stock trucks?
Yes. Even stock L5P trucks benefit from replacing the factory plastic coolant pipe with a stronger aluminum component for long-term reliability.
Specifications for WEHRLI CUSTOM FAB WCF100541
| Specification | Details |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | WCF100541 |
| UPC | Not Listed by Manufacturer |
| GTIN | Not Listed |
| Shipping Weight | Approximately 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 |
