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The Wehrli Custom Fab coolant tank kit replaces the OEM reservoir location for 2017–2019 Duramax L5P 2500/3500 and 2019+ L5D 4500/5500/6500 applications, finished in Cat Yellow. It addresses common stock-reservoir sensor failures by including a serviceable float-type sensor, and features a fabricated aluminum tank, billet aluminum sight glass and cap, high-quality powder-coat finish, overflow hose and installation hardware, Made in USA.
Wehrli 17-19 Chevrolet 6.6L L5P Duramax OEM Placement Coolant Tank Kit - CAT Yellow
