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.
Thickness = 3.55mm (0.140")
ID = 23.60mm (0.930")
This #12557752 O-Ring fits the Following Applications:
1998-2002 Camaro & Firebird/Trans Am (V8)
2004-2007 Cadillac CTS-V
1999-2000 Chevy/GMC Pick-Up (LS V8 engines with 1st design pick-up tube that has o-ring locating groove.)