Used on the following models:

Fitness Gear
820E - EP162 - 2007
821E - EP175 - 2008-2009
830E - EP163 - 2007

Hydra Fitness
Endurance Ext. - EP22 - 2002
Club Series - CSE2 - 2005 (EP36C)
Club Series - CSE3HR - 2005 (EP30C)
Core Fitness System - RB1 - 2004 (CB42C)
Core Fitness System - RE1 - 2004 (EP29C)
Elite Series - 1.2E - 2005 (EP121)
Elite Series - 2.0E - 2004 (EP36B)
Elite Series - 2.1E - 2005 (EP102)
Elite Series - 2.2E - 2006 (EP122)
Elite Series - 3.0E - 2004 (EP30B)
Elite Series - 3.1E - 2005 (EP103)
Elite Series - 4.0E - 2004 (EP31B)
Elite Series - 4.1E - 2005 (EP104)
Endurance - 200 - 2003 (EP28)
Endurance - 2001 (EP033)
Endurance - 300 - 2003 (EP29)
Endurance - Extreme - 2002 (EP22)
Endurance - Pro - 2002 (EP140)
Endurance - Pro - 2002 (EP143)
Express - 200 - 2003 (CB41)
Free Spirit - 30135 - 2004 (EP28C)
Free Spirit - 30150 - 2005 (EP29G)
Hydra Series - E20 - 2004 (EP28B)
Hydra Series - E30 - 2004 (EP29B)
HZ Series - E51 - 2005 (EP28D)
HZ Series - E52 - 2005 (EP29D)
HZ Series - E53 - 2005 (EP29E)
HZ Series - E54HR - 2005 (EP29F)
HZ Series - E95 - 2007 (EP139)
Limited Series - E6050 - 2005 (EP29H)
S-Class Series - ESC2 - 2003 (EP36)
S-Class Series - ESC3 - 2003 (EP30)
S-Class Series - ESC4 - 2003 (EP31)
Smooth Fitness - SMEPE - 2005 (EP29I)
Smooth Fitness - SMEXE - 2005 (EP29J)