Casement operator for 25x45 window

Question

Trying to identify the correct replacement parts for the casement operator.  Window opens from left to right.  Original part manufacturer is Truth.  Smaller part of arm is 4-1/2 inches total length.  About 4 inches, maybe 3-15/16 from center hole to center hole.  Overall width of the crank box is 3 inches.  Thank you.

Casey · Accepted Answer

Hello,

Your operator resembles the 39-171 shown below. It is only offered with a 5" long link arm but you may be able to adjust the position of the mounting bracket on the window sash to compensate for the difference. Another option would be to attach the original link arm to the new operator by drilling them out, and then installing the old arm on the new operator with the 62-014 rivet.

Dimensions for 39-171

We also offer the 39-172 opposite-handed version. These operators are commonly used with the 39-545 and 39-546 stud brackets. Take a look and compare the specifications to your original assembly. Thanks for posting!