Quality, Style, Performance: Designed to mimic the rocker covers of the Twin-Cam motor, the Jagg Chrome oil cooler is as beautiful as it is functional. Unlike polished billet “heat sinks” sold as oil coolers, this is a high-performance Jagg oil radiator. The billet aluminum end caps and side cover are polished and heavily chromed to create a functional accessory that will provide as many envious glances as years of trouble-free service.