Truth casement operators




Thanks for writing in! Your single arm operator can be replaced with the 39-220B Encore Dyad Sill Mount Operator; the opposite handed version is the 39-221B. The dual arm crank can be replaced with the 39-253RB; the opposite version of this operator is the 39-253LB.
To confirm that these are the correct replacements for your operators, be sure to carefully look over each of their dimensions below.
Each of these are compatible with either the 39-375 and 39-376 folding cover kits or the 39-451 and 39-452 non-folding cover kits. You'll find the other compatible hardware in the 'related items' for both style operators on their respective product pages.



Thanks



I'm happy to help! Please don't hesitate to reach out with any other hardware repair projects you might have.
Have a great day!