Oversize .010 Inch Piston Ring Set for Multiple 1965-90 Jeep Models w/ 6 cyl. engs. Crown AutomotiveOversize . 010 inch Piston Ring Set for Jeep 1972 1986 CJ 5, CJ 6, CJ 7, CJ 8 w 3. 8L or 4. 2L Engines, 1987 1990 YJ Wrangler w 4. 2L Engine, 1972 1973 C104 Commando ww 4. 2L Engine, 1965 1986 SJ, J Series w 3. 8L or 4. 2L Engines. For 6 Pistons Features and Benefits: . 010 inch Oversize 12 Month Warranty Direct Replacement For (6) Pistons For Models w 3. 8L or 4. 2L Engines Details: Material: Steel Finish: Unpainted Interchange: 83506384, J0948851,