Timing Chain Kit for Jeep 1999-2006 Grand Cherokee, 2006 Commander w/ 4.7L Eng Crown AutomotiveTiming Chain Kit for Jeep 1999 2006 Grand Cherokee, 2006 Commander w 4. 7L Engine, Includes Primary and Secondary Timing Chains, Secondary Arms, Secondary Guides Guides, and Tensioner Features and Benefits: 12 Month Warranty Direct Replacement For Models w 4. 7L Engine Includes Primary and Secondary Timing Chains, Secondary Arms, Secondary Guides Guides, and Tensioner Use Existing Hardware Details: Material: Metal, Plastic Finish: Unpainted Hardware