Truth Dual Arm operator Part 30472 R H window replacement arm

Thanks for reaching out to us! The part number from your crank operator is associated with two different operators we have; the 39-031 and 39-032 EntryGard Dual Operator Operators or the 39-155 and 39-156 Caradco Window Crank. To determine which style operator you have, you'll need to carefully review and compare the dimensions shown below. 

I've also tagged all of the hardware compatible with both operator styles. See what you think!

Dimensions for 39-031

Dimensions for 39-155