Window crank mechanism

Question

I have a window crank that appears to not work.  Upon opening or closing the inner mechanism loosens and dislodges.  Then I have to manually push the window closed from outside after removing the inner crank mechanism.  Each elbow is about 6" in length and the center piece is about 4" so total amount of opening is likely about 12" total when fully open.  But elbow to elbow distance is likely 16".  Please kindly advise which compatible replacement parts I will need. Thank you.

Tom · Accepted Answer

Hello! Looks like your worm gear is stripped out. Since your elbow-to-elbow distance is 16", I recommend our 39-140. As long as that measurement is accurate then this will repair your window.