If your Valkyrie is running cool or overheating, the thermostat might be stuck. This is a brand new replacement from Caltric. It's designed to fit the Honda GL1500C Valkyrie from 1997 to 2003. It's a direct bolt-on replacement. The part number is TM115, and it crosses to a bunch of OEM numbers like 19300-MG9-000, 19300-MZ0-003, and 19300-MB0-003. It's made of metal and measures 40.2mm in length. Comes with a 90-day warranty. Made in China. New, just the thermostat. Prop 65 warning for California.