Spark Plug for Jeep 1981-1986 CJ-5, CJ-7, CJ-8 w/ 4.2L Engines, 1981-1990 SJ, J-Series w/ 4.2L Engine, 1983-1986 CJ-7, CJ-8 w/ AMC 2.5L Engine, 1984-1990 XJ Cherokee, MJ Comanche w/ 2.5L (Carb) Engine, 1987-1990 YJ Wrangler w/ 2.5L, 4.2L Engines