SKU: WCF100268-GB
2020-2025 Chevrolet Silverado or GMC Sierra HD with the 6.6L L5P Duramax diesel engine using the Wehrli Custom Fabrication OEM Placement Coolant Tank Kit in Gloss Black (Part Number: WCF100268-GB). This kit delivers a direct replacement for the factory plastic reservoir, mounted precisely in the OEM location on the driver's side firewall. Built from laser-cut, CNC-bent, and TIG-welded aluminum, it withstands the rigors of high-performance diesel operation far better than stock components, preventing common failures like sensor issues or tank cracking from heat, pressure, or contamination. Truck owners choose this kit for its straightforward installation no modifications needed on unmodified vehicles and its clean integration that enhances the engine bay's appearance while maintaining full functionality.
Key Performance Advantages
This aluminum tank addresses the limitations of the OEM plastic design head-on. The factory unit often develops non-serviceable sensor problems, leading to costly full replacements, and it yellows or builds up grime over time. In contrast, the WCF100268-GB features a serviceable low coolant level sensor that threads in easily and can be replaced independently, ensuring long-term reliability. The durable aluminum construction resists damage from head gasket issues or extreme temperatures, keeping your cooling system sealed and efficient. Paired with OEM-style hoses and fittings, it supports consistent coolant flow and pressure management, making it the reliable pick for daily drivers, heavy haulers, or tuned L5P trucks. Drivers report fewer leaks and easier maintenance, turning a routine vulnerability into a strength.
Vehicle Fitment Details
Notes: Fits first-generation L5P platform post-2020 body redesign with driver's side firewall tank location. Not compatible with 2017-2019 L5P models or custom twin-turbo setups requiring battery relocation.
What's Included in Your Purchase
Every WCF100268-GB kit comes complete with all components for a plug-and-play install using basic hand tools:
This kit replaces GM OEM part numbers 23394082 and 84622147, ensuring compatibility without adapters.
Shipping and Packaging Specifications
Notes: Ships in protective packaging within 3-5 business days for in-stock Gloss Black finish.
Install in under an hour and enjoy a cooling system that's built to last. The WCF100268-GB stands out as the direct, dependable solution for L5P owners seeking performance and style in one kit order yours today to keep your Duramax running strong.
Note: Images above are for reference only this listing is for 1 Black Tank
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View Engine ProductsLooks pretty nice, pricing was good and the reinforcement is a big plus.
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Installation was easy. The price is good and it looks great on the truck.
Looks as good as it fits,
I love it great sound and response
Car totally diferent with the whole kit. Ive stood next to wide bodies and my car gets more attention at times . Ive bought the kit twice already.
Fantastic emblem! Exactly what I was looking for. Great quality emblem.
Worked great for my aftermarket hood on my Chrysler 2023 300C. Thanks
Easy to install and makes car sound even better love the winn
Awesome customer support. Had multiple issues with fedex and these guys were excellent in helping me sort everything out. The drop springs are great too! I highly recommend
100/100! perfect CF crafted cold air intake for 6.4 jeep .. even makes my AWE exhaust sound even deeper and you cam here this thing sucking when accelerating even at normal speeds🥶
