[Fitment Chart]For 1999-2007 Chevrolet Silverado 1500 /For 2007 Chevrolet Silverado 1500 Classic /For 1999-2006 Chevrolet Silverado 2500 /For 2007 Chevrolet Silverado 2500 Classic /For 2001-2006 Chevrolet Silverado 3500 /For 2007 Chevrolet Silverado 3500 Classic /For 1999-2007 GMC Sierra 1500 /For 2007 GMC Sierra 1500 Classic /For 1999-2006 GMC Sierra 2500 /For 2007 GMC Sierra 2500 Classic /For 2001-2006 GMC Sierra 3500 /For 2007 GMC Sierra 3500 Classic [OE Number]12477640,Y1286,CA1220,CA-1220,TC1640,Y-1286_CA-1220,Y-1286 [Engine]4.8L, 5.3L, 6.0L [Service]We Will Give You A Better Service. We Have Shipped 100% Before We Are Shipped Goods Inspection. We Strongly Recommend An Experienced Mechanic Install This Kit & Tune The Engine. [Warranty]Our Products Are Professionally Provided With A One-year Warranty, If You Have Any Questions, Please Leave A Message To Contact Me!

For 1999-2007 Chevrolet Silverado 1500

For 2007 Chevrolet Silverado 1500 Classic

For 2001-2003 Chevrolet Silverado 1500 HD

For 2005-2006 Chevrolet Silverado 1500 HD

For 1999-2004 Chevrolet Silverado 2500

For 2001-2006 Chevrolet Silverado 2500 HD

For 2007 Chevrolet Silverado 2500 HD Classic

For 2001-2006 Chevrolet Silverado 3500

For 2007 Chevrolet Silverado 3500 Classic

For 1999-2007 GMC Sierra 1500

For 2007 GMC Sierra 1500 Classic

For 2002-2003 GMC Sierra 1500 HD

For 1999-2004 GMC Sierra 2500

For 2001-2006 GMC Sierra 2500 HD

For 2007 GMC Sierra 2500 HD Classic

For 2001-2006 GMC Sierra 3500

For 2007 GMC Sierra 3500 Classic