Fits: 2001 thru 2005 Chevy Silverado/GMC Sierra 2500HD/3500HD LB7/LLY Duramax Diesel

When replacing your water pump you will need these o-rings and gaskets to prevent premature leaking.

Includes:

• Upper bypass tube o-ring
• Lower bypass tube o-ring
• Water pump outlet gasket
• Water pump to front engine cover o-ring
• Water pump to housing o-ring

Optional Turbo Coolant Return Hose:

• Replace this cracked or worn out hose when installing a new water pump.