Crankshaft Sprocket for 1972-86 CJs, SJ, J-Series, 1987-90 YJ Wrangler w/ 4.2L Crown AutomotiveCrankshaft Sprocket for 1972 1986 CJ 5, CJ 6, CJ 7, CJ 8, SJ, J Series, 1987 1990 YJ Wrangler w 4. 2L Engine Features and Benefits: 12 Month Warranty Direct Replacement For Models w 4. 2L Engine Use Existing Hardware Details: Material: Metal Finish: Unpainted Hardware Included: Use Existing Hardware Interchange: J3173205 Application: 1972 1973 Jeep J Series J 100 w 4. 2L Engine; 1972 1973 Jeep J Series J 2600 w 4. 2L Engine; 1972 1973 Jeep J Series J