Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit - Bengal Grey

When you're looking to clean up the engine bay on your 2020-2025 Duramax L5P truck, replacing the factory plastic auxiliary coolant reservoir is a great way to start. This kit from Wehrli Custom Fabrication swaps out that clear plastic tank for a custom-fabricated aluminum one, finished in a sharp Bengal Grey powder coat. It's a clean way to dress up the area around your fuel cooler system.

This tank is built from aluminum and then finished with a durable, single-stage powder coating. It uses the factory mounting points, so it fits right in without needing any other modifications to your truck. The kit also includes a black anodized billet aluminum cap that looks much better than the stock one, along with all the necessary mounting hardware and a pre-formed hose. It’s a well-built piece that makes a noticeable difference in the appearance of your engine bay.

Installation is straightforward and can be done with basic hand tools. This kit directly replaces GM part number 84211275, ensuring compatibility with your stock truck.