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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Wehrli
Wehrli WCFab L5P Up Pipe Bolt Kit with ARP Fasteners for 2017-2025 Chevrolet/GMC (6.6L) WCF100199
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 2017-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks (6.6L).
The Wehrli Custom Fabrication (WCFab) L5P Up Pipe Bolt Kit is a high-strength hardware upgrade designed for the 6.6L Duramax engine. This kit replaces the undersized and failure-prone 8mm factory fasteners used to connect the up pipes to the exhaust manifolds and turbocharger pedestal. In professional shop environments, factory fasteners are frequently found to be seized or broken even on low-mileage vehicles. This kit solves that vulnerability by utilizing premium ARP hardware.
Constructed from high-strength materials, these fasteners provide superior clamping force and improved serviceability for both stock and modified trucks. This kit includes all necessary hardware to secure both up pipes, ensuring a leak-free exhaust seal and preventing future maintenance headaches.
- Replaces failure-prone 8mm OEM fasteners
- 12 High-strength ARP bolts
- 12 Matched ARP washers
- Includes one pack of ARP assembly lube
- Prevents hardware breakage in exhaust manifolds and turbo pedestal
- Manufacturer Part Number: WCF100199
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2025 | Chevrolet | Silverado 2500 HD | Custom |
| 2017-2025 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2025 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2017-2025 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2025 | GMC | Sierra 2500 HD | AT4 |
| 2024-2025 | GMC | Sierra 2500 HD | AT4X |
| 2017-2021 | GMC | Sierra 2500 HD | Base |
| 2017-2025 | GMC | Sierra 2500 HD | Denali |
| 2024-2025 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 2500 HD | Pro |
| 2017-2025 | GMC | Sierra 2500 HD | SLE |
| 2017-2025 | GMC | Sierra 2500 HD | SLT |
| 2020-2025 | GMC | Sierra 3500 HD | AT4 |
| 2017-2021 | GMC | Sierra 3500 HD | Base |
| 2017-2025 | GMC | Sierra 3500 HD | Denali |
| 2024-2025 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 3500 HD | Pro |
| 2017-2025 | GMC | Sierra 3500 HD | SLE |
| 2017-2025 | GMC | Sierra 3500 HD | SLT |
Choose your Location
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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Wehrli WCFab L5P Up Pipe Bolt Kit with ARP Fasteners for 2017-2025 Chevrolet/GMC (6.6L) WCF100199
This product will be available soon, but you can pre-order now to get on the list before others!
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Fits select 2017-2025 Chevrolet Silverado and GMC Sierra 2500 HD / 3500 HD trucks (6.6L).
The Wehrli Custom Fabrication (WCFab) L5P Up Pipe Bolt Kit is a high-strength hardware upgrade designed for the 6.6L Duramax engine. This kit replaces the undersized and failure-prone 8mm factory fasteners used to connect the up pipes to the exhaust manifolds and turbocharger pedestal. In professional shop environments, factory fasteners are frequently found to be seized or broken even on low-mileage vehicles. This kit solves that vulnerability by utilizing premium ARP hardware.
Constructed from high-strength materials, these fasteners provide superior clamping force and improved serviceability for both stock and modified trucks. This kit includes all necessary hardware to secure both up pipes, ensuring a leak-free exhaust seal and preventing future maintenance headaches.
- Replaces failure-prone 8mm OEM fasteners
- 12 High-strength ARP bolts
- 12 Matched ARP washers
- Includes one pack of ARP assembly lube
- Prevents hardware breakage in exhaust manifolds and turbo pedestal
- Manufacturer Part Number: WCF100199
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2021-2025 | Chevrolet | Silverado 2500 HD | Custom |
| 2017-2025 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 2500 HD | WT |
| 2024-2025 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2017-2025 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2025 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2025 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2025 | GMC | Sierra 2500 HD | AT4 |
| 2024-2025 | GMC | Sierra 2500 HD | AT4X |
| 2017-2021 | GMC | Sierra 2500 HD | Base |
| 2017-2025 | GMC | Sierra 2500 HD | Denali |
| 2024-2025 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 2500 HD | Pro |
| 2017-2025 | GMC | Sierra 2500 HD | SLE |
| 2017-2025 | GMC | Sierra 2500 HD | SLT |
| 2020-2025 | GMC | Sierra 3500 HD | AT4 |
| 2017-2021 | GMC | Sierra 3500 HD | Base |
| 2017-2025 | GMC | Sierra 3500 HD | Denali |
| 2024-2025 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2025 | GMC | Sierra 3500 HD | Pro |
| 2017-2025 | GMC | Sierra 3500 HD | SLE |
| 2017-2025 | GMC | Sierra 3500 HD | SLT |
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