This Kenworth 4 row bolt together brass tank and copper core radiator with surge tank and without oil cooler has a straight inlet. This radiator fits Kenworth T600 and Kenworth T800. The core size is 40 x 28 1/2 x 2 1/16. Be sure to confirm the OEM part number and your fittings before ordering. This Kenworth radiator has a straight outlet. Other models will have an outlet curved up toward the engine. Comfirm the position of both outlet and inlet on drivers or passenger side.