Available as a limited edition, the Jagg Deluxe Diamond Cut oil cooler kit features precisely machined end-caps with hundreds of angled cuts that reflect light and dress up any bike. Quality, Style, Performance: The Jagg Deluxe oil cooler was the first Jagg oil cooler. Designed with the brushed air fins of the Harley-Davidson engine in mind, this stylish item mounts in the direct airflow as a functional solution for any H-D application.