38580-HP5-601 Relay (15AX2) - Overview. The 38580-HP5-601 Relay (15AX2) is a critical OEM electrical component supporting the fuel pump relay system in Honda marine and off-road engine systems. It functions as a waterproof 15 amp dual circuit relay engineered to regulate power flow safely and effectively within the electrical system. Designed specifically for Honda vehicles such as the Rancher 420 (2007-2014), Rincon 680 (2006-2023), and Foreman 500 (2012-2013), this relay ensures seamless integ