Part Number:LC3Z8005B, HC3Z8005J, HC3Z8005B, CU13676,13676,RAD13676. This TSM® AA5083 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.