Timing Chain Kit for Jeep 1999-2006 Grand Cherokee and 2006 Commander w/ 4.7L Crown AutomotiveTiming Chain Kit for Jeep 1999 2006 WJ, WG, WK, WJ Grand Cherokee and 2006 XK, XH Commander w 4. 7L Engines, Includes Primary and Secondary TIming Chains, Primary and Secondary Tensioners, Secondary Guides, and Secondary Arms Features and Benefits: 12 Month Warranty Direct Replacement For Models w 4. 7L Engine Includes Primary and Secondary TIming Chains, Primary and Secondary Tensioners, Secondary Guides, and Secondary Arms Use Existing Hardware