Harmonic Balancer for 1987-2006 Jeep TJ, YJ, XJ, MJ, ZJ, ZG, WJ, WG w/ 4.0L Eng. Crown AutomotiveHarmonic Balancer for Jeep 1991 2006 TJ, YJ Wrangler, 1987 2001 XJ Cherokee, MJ Comanche, 1993 2004 ZJ, ZG, WJ, WG Grand Cherokee w 4. 0L Engine Features and Benefits: 12 Month Warranty Direct Replacement For Models w 4. 0L Engine Steel Construction Uses OE Hardware Details: Material: Metal, Rubber Color: Black Hardware Included: Use Existing Hardware Application: 1987 1992 Jeep MJ Comanche w 4. 0L Engine; 1987 2001 Jeep XJ Cherokee w 4. 0L Engine;