For 1982-1991 Jaguar XJS 3.6L 6 CYL. For 1992-1996 Jaguar XJS 4.0L 6 CYL. This AA5052 Aluminum Radiator is designed to provide maximum cooling efficiency to prevent premature engine failure. Its light-weight, and high-heat transferring aluminum features a tube and fin design that, dramatically increases surface area that enables the heat to dissipate more efficiently.