Genuine UK made Mocal 13 row oil cooler. An oil cooler is a welcome upgrade for modified road cars, and a 13 row cooler is usually a good all around size to keep conventional engine oil at it's optimum temperature in most areas. We also have a smaller 10 row for colder areas, and a 16 row for very hot areas for very powerful engines. Be sure to check out our range of braided hoses too!