The Subaru/Robin 065-50001-10 engine spark plug cap ensures a reliable and secure connection between the ignition coil and spark plug for consistent engine firing. Designed to fit tightly over the spark plug terminal, it channels electrical current efficiently to ignite the fuel-air mixture and maintain smooth engine operation. Built with durable, heat-resistant materials, the cap pre... https://www.wholetoolbox.com/subaru-robin-065-50001-10-engine-spark-plug-cap