Product Description
The WEHRLI CUSTOM FAB WCF100199 L5P DURAMAX UP PIPE BOLT KIT is designed to replace factory hardware that often becomes stretched, corroded, or damaged during turbo or exhaust service. This premium hardware kit provides the correct high-strength bolts required to properly secure the up pipes on 2017-2022 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with the 6.6L L5P Duramax engine.
When servicing turbochargers, replacing exhaust components, or installing performance upgrades, factory bolts frequently seize or break due to heat cycling and corrosion. Wehrli Custom Fabrication engineered this kit to provide durable replacement hardware that restores proper clamping force between the exhaust manifolds and turbo up pipes.
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Key Features
- High-strength replacement hardware for L5P Duramax up pipes
- Direct replacement for factory turbo up pipe bolts
- Designed to withstand high exhaust temperatures
- Ideal for turbo replacement, up pipe service, or exhaust repairs
- Manufactured for durability and long-term reliability
- Engineered by Wehrli Custom Fabrication
Fitment
- 2017 Chevrolet Silverado 2500HD 6.6L Duramax L5P
- 2017 Chevrolet Silverado 3500HD 6.6L Duramax L5P
- 2018 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 2019 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax L5P
- 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
- 2017 GMC Sierra 2500HD 6.6L Duramax L5P
- 2017 GMC Sierra 3500HD 6.6L Duramax L5P
- 2018 GMC Sierra 2500HD / 3500HD 6.6L Duramax L5P
- 2019 GMC Sierra 2500HD / 3500HD 6.6L Duramax L5P
- 2020 GMC Sierra 2500HD / 3500HD 6.6L Duramax L5P
- 2021 GMC Sierra 2500HD / 3500HD 6.6L Duramax L5P
- 2022 GMC Sierra 2500HD / 3500HD 6.6L Duramax L5P
Frequently Asked Questions
Why should I replace the factory up pipe bolts?
Factory exhaust bolts experience extreme heat cycles and corrosion. When removing up pipes or servicing the turbo, the bolts frequently seize or break. Installing new hardware ensures proper clamping force and prevents exhaust leaks.
Does this kit include all hardware needed for the up pipes?
Yes. This kit provides the required replacement bolts to properly secure the up pipes during service or turbo installation.
Is this kit required during turbo replacement?
It is strongly recommended. Exhaust bolts are commonly damaged during removal and should be replaced during turbo service.
Will these bolts work with aftermarket turbo systems?
Yes. The hardware is compatible with both factory and most aftermarket turbo installations using factory-style up pipes.
Is professional installation required?
No specialized tools are required, but installation is recommended during exhaust or turbo servicing by experienced diesel technicians.
Specifications for WEHRLI CUSTOM FAB WCF100199
| Specification | Details |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | WCF100199 |
| UPC | Not Listed by Manufacturer |
| GTIN | Not Listed |
| Shipping Weight | 1 lb |
| Package Dimensions | 6 x 4 x 2 inches |
| Shipping Method | UPS / FedEx / USPS |
| 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 |
