Replacement crank

Hello,

We'd be happy to help but part of the operator's arms are obstructed by the screen and the window no being open all the way. If you could removed the screen and open the window as far as you can, that will show us more of your assembly to compare to our inventory. Thank you. 

Thanks for getting back to us! It looks like you have an older style version of the 39-171 (shown in your photos) and 39-172 Truth operators. Take a look and see how the specifications compare to confirm.

Oh, sure, sorry for the confusion. In that case I would recommend our 39-205. I'm very confident that this is what you want, but you should note that it has an 11/32" hole diameter. Yours should be the same but I thought I'd mention it just in case.