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The Wehrli fabricated aluminum coolant tank kit for 2004.5–2007 5.9L Cummins replaces the stock plastic reservoir with a durable powder‑coated aluminum tank that installs in the OEM location using factory mounting points. Kit includes a black anodized billet cap, billet level sight glass and installation hardware. Finished in Candy Teal, it fits stock trucks and installs with basic hand tools; not compatible with 2003 or early 2004 models.
Wehrli 04.5-07 Cummins 5.9L Coolant Tank (OEM Placement) - Candy Teal
