Used on the following models:

Star Trac
E-TCi Treadclimber 9-9121-MUNBPO
9-9054-MUNBP0
E-RB - 9-8110-MUNBP0 (RBEB)
E-Series 9-9051-MUSAP0
E-TRx - 9-9051-MUNBP0 - 2010
E-UB - 9-8100-MGSAP0 (UBEB)