OEM, Stanley Garage Door Opener END TUBE Idler Pulley Assembly ,New, P49492 for a chain&cable drive stanley . It fits on the end of the shaft tube . This is only used with the chain&cable system. It is 2.25" Diameter and includes the pin & clip. This item fits chain&cable drive Stanley openers that use the tubular type rail with the pulley mounted in the end tube. Check the picture
.COMPATIBLE WITH THE FOLLOWING: Stanley or Vemco Chain&cable Drive Systems stk#(3111)A40,b6
