Regulator For Arctic Cat 400 Bearcat 500 Triumph TT600 America Bonneville Thruxton 900 Scrambler Speedmaster 1997-2011 OEM Repl.# 3430-016 3430-037 T1300819 Brand new voltage regulator rectifier direct replacement Improved heat sink and charging capabilites Higher grade of electric components All products shipped are tested One year limited warranty