Wehrli Custom Fab Upper Coolant Pipe for 2001–2005 Chevrolet Silverado and GMC Sierra 2500/3500 trucks with the 6.6L LB7/LLY Duramax replaces the OEM rubber upper radiator hose with a formed aluminum pipe finished in your choice of powder coat. It uses silicone boots and stainless steel T-bolt clamps for a secure connection and replaces GM part numbers 15792832 and 15198345.
Wehrli 01-05 Chevrolet 6.6L LB7/LLY Duramax Upper Coolant Pipe - Gloss White