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The Wehrli auxiliary coolant tank kit for 2020–2025 Duramax L5P replaces the OEM plastic reservoir with a fabricated aluminum tank in Candy Red. It mounts in the factory location using OEM mounting points and includes a black anodized CNC billet cap, mounting hardware, preformed hose and overflow fitting. Built as a direct-fit solution, the kit installs simply with basic hand tools on stock trucks.
Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit - Candy Red
