bossbearing starter solenoid relay smu6015 for arctic cat 650 h1 4x4 auto 2007 2008 2009 2010 bossbearing arrowhead starter solenoid relay. arrowhead electrical products, inc. is a global distributor of rotating electrical parts and their components. they have been proudly serving customers for over 45 years, and their mission is to sell high quality products at great prices while providing exceptional customer service! specifications: 12-volt.