The Wehrli Custom Fab OEM-placement coolant tank replaces the factory reservoir on 2020–2025 Chevrolet and GMC 6.6L L5P Duramax trucks with a fabricated aluminum tank in Flat Black and a sight glass. Designed to use OEM mounting points, it installs easily with basic hand tools and comes with a billet anodized cap, mounting hardware, overflow hose and low coolant level sensor for a clean retrofit.
Wehrli 20-24 Chevrolet-GMC 6.6L L5P Duramax OEM Placement Coolant Tank Kit - Flat Black