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SKU: WCF100433-BR
Wehrli 17-19 Chevrolet 6.6L L5P Duramax OEM Placement Coolant Tank Kit - Bengal Red
Wehrli Custom Fab engineered this fabricated aluminum coolant tank kit for 2017-2019 Chevrolet Silverado 2500/3500 HD and GMC Sierra 2500/3500 HD with 6.6L L5P Duramax engines plus 2019+ L5D Duramax 4500/5500/6500 models. It installs in the OEM coolant reservoir location replacing cloudy aging stock plastic units prone to sensor failures that trigger false low coolant lights. Enjoy a cleaner engine bay look with a serviceable float sensor that avoids full assembly replacements every time.
Key Features
- OEM Placement Design: Bolts directly into factory coolant tank position on L5P and L5D Duramax trucks for seamless integration without modifications.
- Fabricated Aluminum Construction: Far more durable than stock plastic resists clouding yellowing and cracking for lifelong reliability under hood.
- Bengal Red Powdercoat Finish: Vibrant durable color enhances engine bay aesthetics while resisting corrosion and heat.
- Serviceable Float-Type Sensor: High-quality replaceable sensor eliminates premature OEM failures without buying entire new reservoir assembly.
- Direct GM Part Replacement: Replaces OEM numbers 84257137 84214124 84138913 84174037 ensuring exact fit and function.
Product Notes
- Kit includes tank sensor cap and mounting hardware for complete installation.
- Perfect solution for Duramax owners tired of recurring coolant warning issues.
- Ships ready-to-install with all components for 6.6L L5P and L5D applications.
Installation Notes
- Professional installation recommended.
- Basic hand tools required drains coolant first then bolts in place in 30-60 minutes.
- Plugs into OEM wiring harness no cutting or adapters needed.
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2019 | Chevrolet | Silverado 2500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 2500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 2500 HD | WT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | High Country |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LT |
| 2017-2019 | Chevrolet | Silverado 3500 HD | LTZ |
| 2017-2019 | Chevrolet | Silverado 3500 HD | WT |
| 2017-2019 | GMC | Sierra 2500 HD | Base |
| 2017-2019 | GMC | Sierra 2500 HD | Denali |
| 2017-2019 | GMC | Sierra 2500 HD | SLE |
| 2017-2019 | GMC | Sierra 2500 HD | SLT |
| 2017-2019 | GMC | Sierra 3500 HD | Base |
| 2017-2019 | GMC | Sierra 3500 HD | Denali |
| 2017-2019 | GMC | Sierra 3500 HD | SLE |
| 2017-2019 | GMC | Sierra 3500 HD | SLT |
| 2019+ | Chevrolet | Silverado 4500 HD | All |
| 2019+ | Chevrolet | Silverado 5500 HD | All |
| 2019+ | Chevrolet | Silverado 6500 HD | All |
| 2019+ | GMC | Sierra 4500 HD | All |
| 2019+ | GMC | Sierra 5500 HD | All |
| 2019+ | GMC | Sierra 6500 HD | All |
Why Choose Wehrli Custom Fabrication?
- Leading innovator in Duramax cooling upgrades trusted by diesel enthusiasts nationwide.
- CNC-machined and TIG-welded components built for extreme durability and performance.
- Backed by years of real-world testing on high-horsepower L5P and L5D trucks.
Frequently Asked Questions
-
Q: Does this coolant tank fit 2020 and newer L5P Duramax trucks?
A: No this kit is designed specifically for 2017-2019 L5P 2500/3500 HD and 2019+ L5D medium-duty models with matching OEM tank locations. -
Q: What material and finish does the tank use?
A: 6061-T6 aluminum fully fabricated and finished in heat-resistant Bengal Red powdercoat for style and protection. -
Q: How do I replace the sensor if it ever fails?
A: The float sensor pulls out easily for service without removing the tank or buying a new unit unlike OEM designs.
Shipping & Handling
- Method: UPS or FedEx Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective foam-lined box 16in x 12in x 10in
- Weight: 3.8 lbs
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