Wehrli WCF100224-RED Auxiliary Coolant Tank Kit
The Wehrli WCF100224-RED is a fabricated aluminum auxiliary coolant tank kit that replaces the factory clear plastic reservoir for the fuel cooling system on the 2020-2024 Duramax L5P, mounting in the OEM location with a red powder-coated finish.
Key Features
- Fabricated aluminum construction replaces the factory plastic reservoir
- Red powder-coated finish for a custom engine bay appearance
- Black anodized CNC-machined billet aluminum cap included
- Uses OEM mounting points with no other modifications required
Fitment
| Year | Make | Model | Engine |
|---|---|---|---|
| 2020 | GM | Duramax L5P trucks | L5P Duramax |
| 2021 | GM | Duramax L5P trucks | L5P Duramax |
| 2022 | GM | Duramax L5P trucks | L5P Duramax |
| 2023 | GM | Duramax L5P trucks | L5P Duramax |
| 2024 | GM | Duramax L5P trucks | L5P Duramax |
The WCF100224-RED replaces GM part number 84211275 and is compatible with stock trucks with no other modifications necessary.
Specifications
| Detail | Value |
|---|---|
| Brand | Wehrli Custom Fabrication |
| Part Number | WCF100224-RED |
| Material | Fabricated aluminum |
| Finish | Red powder coat |
| Cap Material | Black anodized CNC-machined billet aluminum |
| Mounting | OEM mounting points |
| Replaces OE Part Number | 84211275 |
What’s Included
- 1 WCF100224-RED fabricated aluminum auxiliary coolant tank
- 1 billet aluminum cap
- Mounting hardware
About Wehrli Custom Fabrication
Wehrli Custom Fabrication builds diesel truck components including fabricated aluminum coolant tanks designed as direct, OEM-location replacements for factory plastic parts.
FAQ
What does this tank replace?
The factory clear plastic auxiliary coolant reservoir for the fuel cooling system, GM part number 84211275.
Does this require any modification to install?
No, it uses the OEM mounting points and is compatible with stock trucks with no other modifications necessary.
What is the cap made from?
A black anodized, CNC-machined billet aluminum cap.
What tools are needed for installation?
Basic hand tools.
What color finish does this kit come in?
Red powder coat. Other finish options may be listed separately.
Is mounting hardware included?
Yes, mounting hardware is included with the kit.
Does this affect coolant capacity or function?
No, it is a direct-fit reservoir replacement using the factory mounting location.
Installation Instructions
- Drain or safely relocate coolant from the factory reservoir before removal.
- Disconnect the factory reservoir’s hoses and electrical connections if equipped.
- Remove the factory plastic reservoir from the OEM mounting points.
- Install the Wehrli aluminum tank at the same mounting points using the included hardware.
- Reconnect hoses and the billet aluminum cap, then refill and bleed the cooling system as needed.
