ClutchMasterCylinder - Compatible with 1999 - 2006 2008 - 2013 Chevy Silvera...Clutch Master Cylinder - Compatible with 1999 - 2006 2008 - 2013 Chevy Silverado 1500 Note: Bore: 18 mm Item Grade: Standard Replacement Package Contents: Clutch Master Cylinder Features: - Built to match the original clutch master in specific vehicles...more