Honda 16562-ZL8-800 Throttle Return Spring Genuine OEM Honda part Fits specific FG400, FG500, GC135, GC160, GC160A, GC160LA, GC160LE, GC190A, GC190LA, GS160LA, GS190LA, HS520, HS520K1, HS720, WN20, WN30 models Please Note: Does not fit all specs of above models listed, please consult owner's manual for proper part number identification and proper installation