Standard Engine Piston Ring Set for Multiple 65-90 Jeep Models w/ 6 Cylinder Eng Crown AutomotiveStandard Engine Piston Ring Set for Jeep 1972 1986 CJ 5, CJ 6, CJ 7, CJ 8 w 3. 8L or 4. 2L, 1987 1990 YJ Wrangler w 4. 2L Engine, 1972 1973 C104 commando w 4. 2L, 1965 1986 SJ, J Series w 3. 8L or 4. 2L Engines, For 6 Pistons Features and Benefits: 12 Month Warranty Direct Replacement For (6) Pistons For Models w 3. 8L or 4. 2L Engines Standard Size Details: Material: Steel Finish: Unpainted Interchange: 83506383, J3205943, J4485507, J4485572