Part number identification

Question

Hi,We have a year 2000 Thermal Gaurd T-375 casement window, looking for replacement window gears/arm.Please see attached photos.

Emily · Accepted Answer

Hello!

Take a look at the 39-253LB and 39-438B operators. The best match will depend on the design of the guide as explained in the video below. Review the specifications and see what you think.

Dimensions for 39-253LB

Dimensions for 39-438B