Replacing window crank operator

Hi Gwenis. I'm sorry, but there's really no way for me to tell what operator you need from this picture alone. Could you show me the entire operator from a 'bird's eye' view? That will better help us determine possible replacements. Many thanks.

Looks like this is the base, but I'm afraid that doesn't tell me much since you already showed it in your first batch of photos. What I meant before is that we need to see as much of the operator in one shot as possible. This may require you removing it from the window before you take your photo, or at least removing the screen, opening the window as far as it can go, and taking a clear picture of the mechanism that way. 

Ultimately, seeing only part of the operator won't help. We need to see as much of it as physically possible in one shot. Seeing how each portion of the operator is designed in the context of the rest of the mechanism is important in identifying a match, since they all tend to be very similar. Seeing it removed from the window is ideal but if that's not possible then please show as much of it as you can.

I'm afraid not. Truth has made about a million different operators. That won't narrow it down by much.

I can at least say that you definitely don't have the 39-020 and 39-021. The style of the base is too different from yours. 

I'm afraid that without seeing more of the operator, we cannot recommend a match. Too many important details are obscured. Based on the photo you're showing us here, you should be able to disconnect the arm from the track, then simply lift the camera up and show us a wider shot. Seeing the complete arm would at least allow us to narrow it down.

I understand that the base is obscured by the trim, but the arm isn't. The metal arm coming out of the base is just as essential to the process of identification as the base. If you can disconnect the arm from the sash track and show us a clear picture of that, we can try to find a good match.

Perfect, that's exactly what we needed to see. Start by looking at our 39-013 and 39-014. These have a 13-1/2" long arms, so as long as that matches up then I think they can work well as substitutes.

The only thing that may prevent these from working is the elliptical style base. That's how this kind of operator is made these days; Truth no longer uses the square base that you have now. Since your operator is so deeply recessed under the sill trim, a different shape base may present an issue, but that's one of those things that you won't know until it's in there. 

My pleasure! Please let us know how it works out or if you have any other questions. We're happy to help as best as we can.