503138C91 Pedal assy.  New - Genuine OEM - IH - Komatsu Dresser - Dressta - Used on many different loader models including H60E - H80B - H100C - H400C - 530 - 530C - 540 - 550 - 530B - 570 and others.  Usually used with treadle valve assy. # 483795C91,  which we also have listed - Thanks for looking.