6PCS Fuel Injectors. Jeep Wrangler 4.0L 1991-1998. Jeep Grand Cherokee 4.0L 1993-1998. Jeep Cherokee 4.0L 1989-1998. Jeep Comanche 4.0L 1987-1991. We do our best to resolve any issue. We will do everything we can to give you a satisfying solution.