GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 GMC K Sierra - 4WD 🢒 Engine 🢒 Engine Cooling 🢒 Radiator Drain Cock Replacement

    Object Number: 339454 Size: SH
  1. If the drain cock does not seal when tightened, remove the drain cock, clean the drain, and replace the drain cock.
  2. If the body of the drain cock is broken, remove and replace with a new drain cock.