Plastic Tank/ Aluminum Core Radiator - No Frame - With Oil Cooler (Passenger Side - Transmission Oil Cooler with ¾” ORB Fittings on 18” [457.2mm] centers) - With 1/2” Connection (Passenger Side top corner), ¾” Heater Return Connection and Plug, and ¾” NPSF to 1 1/16” UN Adapter Fittings.