39-171 In Brown?

Truth unfortunately only makes the 39-171 in white. There are no alternative color options for it.

While the 39-316 has a few more options available, it's not the same part as the 39-171. You'll note that the link arm is a different style and mounts to the gear arm at a different position. Those may seem like small details but they are important.

Before you buy anything, you need to be sure of what operator you have now so that you don't buy the wrong part, regardless of finish. I'd be happy to look over photos of your old operator to give my opinion. I need to see it fully removed and without obstruction. 

That looks much closer to the 39-316 to me. All the dimensions appear to match up, plus it's available in beige. Just note that our beige appears to be much lighter than your original color, so there is no guarantee it will look the same as the old hardware.