CHEVROLET PERFORMANCE HIGH VOLUME OIL PUMP - 12710303

These Chevrolet Performance high volume oil pumps are designed to be direct replacement for your stock pump. Supersedes GM part # 12678151, 12696357 You have the option to also include the pickup tube o-ring. There are two options, as listed below. If you are unsure of what your application takes, we recommend purchasing both just in case.    Chevrolet Performance Oil Pickup Tube O Ring 12557752 (Blue): Thickness = 3.55mm (0.140") ID = 23.60mm (0.930") Typical Applications: 1999-2000 GM Truck with 1st design pickup tube 1997-2008 Chevy Corvette 1998-2002 GM F-Body 2004-2007 Cadillac CTS-V   Chevrolet Performance Oil Pickup Tube O Ring 12584922 (Red): Thickness = 4.20mm (0.165") ID = 20.69mm (0.815")   Typical Applications: 2006-2008 W- Body Impala, Lacrosse, Grand Prix 1999-2000 GM Truck with 2nd design pickup tube 2001-2008 GM Truck 2003-2008 Hummer H2 2008 Hummer H3 2008 2003-2008 Trailblazer/Trailblazer SS (TBSS)