Kwikee's RV electric step linkage kits are for replacing linkage on pre-IMGL step units manufactured from 1999 to 2005 model years. Linkage kits can only be used with 909502000 or 3000 motors. The kit includes the linkage, coupler and cover. ; Linkage Kit 'C', pre-IMGL/9510 control 26 series steps. ; Update your existing or worn-out linkage.