All of our new parts are aftermarket replacements. Compatible with John Deere UTV(s) Gator, Gator 4×2, Gator Diesel, Gator Military 6×4, Gator Trail. Replaces John Deere OEM Number(s) VGA10978, AM116381, AM116382. This radiator will replace original John Deere all aluminum radiator with 1″ connections and plastic tank radiator with 1-1/8″ connections. All States Ag Parts Item No.