Compatible with 1984-1996 Cherokee XJ, 1986-1992 Comanche MJ, 1993-1996 Grand Cherokee ZJ, 1984-1990 Wagoneer, 1987-1995 Wrangler YJ. The vent valve for fuel tanks is an essential component that regulates fuel tank vapors and prevents overpressure, ensuring the safe and efficient operation of the fuel system.