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Wehrli's fabricated aluminum coolant tank replaces the OEM reservoir for 2017–2019 L5P Duramax 2500/3500 and 2019+ L5D Duramax 4500/5500/6500, mounting in the factory location to tidy the engine bay. Finished in WCFab Red with a durable powder coat, it features a serviceable float‑type low coolant sensor, billet aluminum sight glass and cap, overflow hose, installation hardware, and replaces the manufacturer’s listed GM part numbers.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax OEM Placement Coolant Tank Kit - WCFab Red
