GM replacement O-ring for the oil pick-up tube to seal the tube inside of the oil pump. When replacing the oil pump, oil pan, or pick-up tube, always verify that you have the seal installed and that you have the correct seal to fit the tube and pump.
NOTE: There are specific o-ring seals for different applications. Using the incorrect o-ring could cause an oil pressure or oil supply problem and result in engine failure. Check to make sure you have the correct o-ring, pick-up tube, and oil pump. This is a "Blue" colored O-ring from GM.
This #12557752 O-Ring fits the Following Applications: