Need a Part # Please
There is either a Blue or Red O-ring.
They are color coded for a reason, like stated above, if the pickup tube has a recessed area where the o-ring goes you need the thicker RED o-ring. The trucks use this design.
GM Oil Pick-Up Tube O-Ring (1st Design)
12557752
BLUE SEAL
Specifics:
* Oil Pick-Up Tube O-Ring ea.
* Chevy/GMC Pick-Up (1999-2000 LS V8) 1st design
* F-Body (1998-2002)
* Cadillac CTS-V (2004-2007)
* Corvette (1997-2008)
* Thickness = 3.55mm (0.140")
ID = 23.60mm (0.930")
GM Oil Pick-Up Tube O-Ring (2nd Design)
12584922
RED SEAL
Specifics:
* Oil Pick-Up Tube O-Ring ea.
* Chevy/GMC Pick-Up (1999-2000 LS V8 engines with 2nd design pick-up tube)
* Trailblazer (2003-2008 With LS V8 engine)
* Hummer H2 (2003-2008)
* Hummer H3 (2008 With LS V8 engine)
* Chevy/GMC Pick-Up (2001-2008 LS V8 engines)
* W- Body (2006-2008 With LS V8 engine - Impala, Lacrosse, Grand Prix)
* Thickness = 4.20mm (0.165")
ID = 20.69mm (0.815")
They are color coded for a reason, like stated above, if the pickup tube has a recessed area where the o-ring goes you need the thicker RED o-ring. The trucks use this design.
GM Oil Pick-Up Tube O-Ring (1st Design)
12557752
BLUE SEAL
Specifics:
* Oil Pick-Up Tube O-Ring ea.
* Chevy/GMC Pick-Up (1999-2000 LS V8) 1st design
* F-Body (1998-2002)
* Cadillac CTS-V (2004-2007)
* Corvette (1997-2008)
* Thickness = 3.55mm (0.140")
ID = 23.60mm (0.930")
GM Oil Pick-Up Tube O-Ring (2nd Design)
12584922
RED SEAL
Specifics:
* Oil Pick-Up Tube O-Ring ea.
* Chevy/GMC Pick-Up (1999-2000 LS V8 engines with 2nd design pick-up tube)
* Trailblazer (2003-2008 With LS V8 engine)
* Hummer H2 (2003-2008)
* Hummer H3 (2008 With LS V8 engine)
* Chevy/GMC Pick-Up (2001-2008 LS V8 engines)
* W- Body (2006-2008 With LS V8 engine - Impala, Lacrosse, Grand Prix)
* Thickness = 4.20mm (0.165")
ID = 20.69mm (0.815")
The motor is an lq9 out of my 03 SS pick up and the tube has a recess, but the o-ring that came out of it is a blue-green one. The red one is slightly larger than the one that came out. I never had any issues with oil pressure either. So do I use the red one or go back and get the blue one?
If you go pick one up from the dealer, they will give you the Red on for your model year and engine. Use the Red one. The recess makes the ID of the blue one loose and you run the risk of pinching the O-ring.
