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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 Bengal Grey. It installs in the factory location using OEM mounting points and comes with a black anodized CNC billet cap, mounting hardware, preformed hose and overflow fitting. Designed for direct fitment on stock trucks and simple installation with basic hand tools.
Wehrli 20-24 Duramax L5P Auxiliary Coolant Tank Kit - Bengal Grey
