Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit - Gloss White

If you're looking to clean up the engine bay on your 2020-2025 Duramax L5P Silverado or Sierra, this auxiliary coolant tank kit from Wehrli Custom Fabrication is a solid option. It directly replaces the factory clear plastic reservoir for your fuel cooling system, giving you a much cleaner and more finished look. This kit is designed to mount in the original location, using the factory mounting points, so you won't need to make any other modifications to your truck.

The tank itself is fabricated from aluminum and finished in a durable gloss white powder coat, which not only looks good but also holds up well. It comes complete with a black anodized billet aluminum cap, machined for a precise fit, and includes a pre-formed hose and overflow flow fitting. Installation is straightforward, typically requiring only basic hand tools, and it's a direct replacement for GM part number 84211275.