This is a Treadmill Motor Belt. Part Number: 106939. Used on the following models: Golds Gym: Advantage - GGTL12921. Healthrider: A60 - HRTL17980, A60 - HRTL17981, A90 - HRTL19980, A90 - HRTL19981, S700I - HRTL16990, S700I - HRTL16991, S700I - HRTL16992, S700I - HRTL16993, S700XI - HRTL16900, S900I - HRTL19990, S900I - HRTL20010, S900XI - HRTL19900, Soft Strider LE - HRTL26970. Image: 10.2QI/10.2QL - IMTL11990, 10.2QI/10.2QL - IMTL11991, 10.2QI/10.2QL - IMTL11992, 10.2QI/10.2QL - IMTL11993, 10.2QI/10.2QL - IMTL11994, 10.4QI - 831.299350, 10.4QI - 831.299351, 10.4QI - IMTL13991, 10.4QI - IMTL13992, 10.4QL - IMTL12900, 10.4QL - IMTL12901, 10.4QL - IMTL12902, 12.0Q - IMTL07610, 12.0Q - IMTL07611, 973 - IM973030. Lifestyler: ELITE 1200 - 831.297550. Reebok (Icon): ACD 4 - RBTL19980, ACD 4 - RBTL19981, ACD 4 - RBTL19990, ACD 4 - RBTL19991, RBX 575 S - RBTL14600, RBX 575 S - RBTL14601, RX 1000 - RBTL12910, RX 1000 - RBTL12911, RX 1000 - RBTL12912. Schwinn: 540 - PFTL511041. Weslo: Cadence 10 - WL102220, Cadence 3250 - WL325010, Cadence 3250 - WL325011, Cadence 890 - WL890030, Cadence 890 - WL890031, Cadence 890 - WL890032, Cadence 890 - WL890033.