Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit - Flat Black

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 under the hood. This isn't just about looks, though; it's a well-built aluminum tank designed to fit right in the factory location.

This kit features a fabricated aluminum tank finished in a durable, flat black powder coat that resists scratches and looks sharp. It comes with a black anodized billet aluminum cap, machined for a precise fit, and includes a pre-formed hose and overflow fitting. The tank uses the OEM mounting points, so no extra modifications are needed for installation, making it a straightforward bolt-on upgrade with basic hand tools.

Replacing the factory plastic tank with this aluminum version not only improves the appearance of your engine bay but also offers a more robust solution. It's a popular choice for L5P owners wanting to dress up their trucks and ensure all components are well-made and fit correctly.