Truth Crank Operator

Home Owner from La Center, WA

May 28, 2021 7:47 pm

I am looking for crank operator replacements for the windows in my home. I will be needing both left-hand and right-hand operators. The body of the operator is stamped with the No. 45251. The arm of the operator is stamped with the No. 31850. The straight part of the arm is 5 inches long. The long side of the hooked arm is 3-5/16 inches long. The fastener side of the crank body is 3-3/4 inches long. The main body without the cover is 3-7/8 inches long.

3 user uploaded images

5 Replies

Bob from SWISCO

Jun 2, 2021 1:59 pm

This looks like our 39-315 and 39-316 to me. Double-check the dimensions and see if you agree.

Home Owner from La Center, WA

Jun 5, 2021 4:40 pm

It looks like a match. Except for the shape of the cover. The 39-315 has a rounded corner cover. Where as the one that I wish to replace has angular corners. Is that cover still available?

Bob from SWISCO

Jun 7, 2021 8:25 am

The more angular style has been phased out in a lot of these models, and the 39-315 is no exception. If the dimensions listed in the pictures otherwise match up the operator will work for you without issue. I apologize for any inconvenience.

Home Owner from La Center, WA

Jun 7, 2021 10:57 am

Bob, Thank you for all you help.