This is a custom built Kubota LL4400 Tractor radiator to replace the original PLASTIC TANK radiator. Made in the USA. This radiator is a direct fit and replaces the OE plastic tank design. Our radiator is built to last with a aluminum tanks and heavy duty headers. All of our aluminum radiators are brazed by using latest technology in aluminum brazing ( Controlled Atmosphere brazing ). This CAB process is a flux brazed procedure that allows us to braze a radiator core 100% leak free We specialize in building heavy duty, performance and racing radiators for the aftermarket and welcome all special builds. For any questions, please call 800-223-4299There are several designs of this type of radiators so please verify by dimensions of the core!!!