Replacement belt for Starimaster Drive Belt Part Number 130-1784 / SM20202 Used on the Following Models Listed Below. - - StarTrac - 9-5180-MUNBP0, - - StairMaster - 4000CT, - 4000PT, - 4400CL, - 4400PT, - 4400PT - C2, - 4400PT - C40, - 4400PT - C5, - 7000PT, - SM5 StairClimber, - SM916 Stepmill