Wehrli Fabricated Aluminum Coolant Tank for 2007.5–2010 Chevrolet Silverado and GMC Sierra 2500/3500 HD trucks with the 6.6L LMM Duramax swaps the OEM plastic reservoir for a WCFab red powder-coated tank with sight glass. The kit includes a billet black anodized cap, mounting hardware, overflow hose and low coolant sensor and installs using OEM mounting points without other modifications.
Wehrli 07.5-10 Chevrolet 6.6L LMM Duramax OEM Placement Coolant Tank Kit - WCFab Red