G0604.1AKA Genuine Buell Rear Idler Pulley LONG SWINGARM (B3-U)
Genuine Buell rear belt idler pulley. This is the one marked with the double dot on the attaching bracket.
2006-2010 XB12X, XT, XP, SS, and STT models with the long swingarm.
Will not work on the short swingarm models.