1). Core size: 300*165*50 mm 2). Main material: Aluminum 3). 100% Brand New 4). Inlet and outlet size:7/8-14 5). Fit for racing car When the Engine is in high running condition, the oil will become extremely hot which will lead to low effection of oil lubricating. That's the job of oil cooler, cooling the oil and improvingthermostability of oil tokeep enginein good condition.