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Wehrli Custom Fabrication’s fabricated aluminum coolant tank mounts in the OEM location for 2017–2019 L5P Duramax 2500/3500 and 2019+ L5D Duramax 4500/5500/6500 trucks. It replaces aging, cloudy OEM reservoirs and includes a serviceable float‑type low coolant sensor, billet cap and sight glass to simplify maintenance and avoid repeated whole‑assembly replacements when sensors fail.
Wehrli 17-19 L5P / 2019+ L5D Duramax OEM Placement Coolant Tank Kit - Fine Texture Black
