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The Wehrli auxiliary coolant tank kit for 2020–2025 Duramax L5P upgrades the OEM plastic reservoir to a fabricated aluminum tank finished in Candy Teal. It mounts in the original location using factory mounting points and includes a black anodized CNC billet cap, mounting hardware, a preformed hose and overflow fitting. Designed for direct fitment on stock trucks, installation is straightforward with basic tools.
Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit - Candy Teal
