Cranker no distinguish markings that I could see

Hello there. This looks like a ROTO straight arm operator. Start by looking at our 39-400, with a 13-1/2" straight arm, as well as the 39-430 9-1/2" arm operator. Compare both with your old operator to see if either matches what you need; if not, let us know the length of your old operator's arm and I'll try and find something better. For a new handle, see the 39-232; for a new track slider, see the 39-541.

Alternate image for 39-430

Alternate image for 39-400

Great! I'm glad to hear that it's a match. The opposite handed version of our 39-430 is the 39-429. For future reference, you can see this code referenced on the product description on the 39-430 store page.

Please feel free to reach out if you had any other questions.

These aren't really defined by "left" and "right," unfortunately. I know that sounds counterintuitive, but the fact is that every manufacturer, contractor, and customer defines those terms differently depending on who you ask. There is no industry standard for orientation.

For that reason, we recommend ordering based on physical design. You can use our photos as a reference; key details to note are what direction the arm faces and what side of the base the handle sits.

Sure, the most common pairing is the 39-232, which I mentioned in my first response. This is a folding handle designed to fit nicely around the contour of the 39-430 base. A few other options are the 39-205, which is also a folding type but not specifically made for this style operator but will function regardless, and the 39-114L which doesn't fold at all. Finally if you wanted a different style, the 39-102 T shape handle would also be adequate.

You're very welcome! We're always here to help.

These locks require a self tapping screw, since the holes are unthreaded. You can see the suggested screw for each lock on their respective store pages, under "Related Item(s)." For the 39-139, we suggest the 33-096; for the 38-095, we suggest the 33-097.