ECCPP TK10428D Timing Chain Kit Tensioner Guide Rail Crank Sprocket Cam Sprocket Shaft Sprocket Replacement for 2002-2007 2005 2006 Chevrolet Trailblazer 4.2L DOHC VIN S Only fit - 2004-2006 CHEVROLET COLORADO 2.8L 2770CC 169CID L4 DOHC, VIN CODE "8",2004-2006 CHEVROLET COLORADO 3.5L 3460CC 211CID L5 DOHC, VIN CODE "6",2002-2007 CHEVROLET TRAILBLAZER 4.2L 256CID L6 DOHC, VIN CODE "S" What you get - 1x Timing Chain (168 link),1x Tensioner (cam chain tensioner),1x Cam Sprocket left (left cam sprocket 58 teeth),1x Cam Sprocket right / actuator - is not included,1x Crank Sprocket (29 teeth),1x Guide Rail upper (upper rail at cam gears),1x Guide Rail lower(right side for cam chain),1x Guide Rail lower(left side for cam chain),1x Balance Shaft Chain(balance shaft chain - 110 link),1x Balance Shaft Tensioner(spring operated),1x Guide Rail Balance Shaft (balance shaft rail assembly) Product features - Premium quality link belt type timing chain for exceptional durability,Meets or exceeds OEM performance requirements,Utilizes the latest in design and material technology, ensuring quiet and maintenance-free experience Advantage - high-quality and precision-made performance ensures structural integrity and perfect fit; guaranteed trouble-free installation and great performance at a reasonable lower price than other sellers Part number - 12595030, 12588053, 12576884,TK10428D, WP130-7700, 9-0195SC,76139, 90195SC, 24100061, 24100362