Standard Piston & Pin for Select 1999-2007 Jeep WJ, WK, XK w/ 4.7L Engine Crown AutomotiveStandard Piston and Pin for Jeep 1999 2007 WJ, WJ, WK, WH Grand Cherokee and 2006 2007 XK, XH Commander, Commander, All w 4. 7L Engine Features and Benefits: (8) Required 12 Month Warranty For Models w 4. 7L Engine Sold Individually Standard Size Use Existing Hardware Details: Material: Aluminum, Steel Finish: Unpainted Hardware Included: Use Existing Hardware Application: 1999 2004 Jeep WJ Grand Cherokee w 4. 7L Engine; 2001 2004 Jeep WG (Europe)