Truth 45251 is stamped on the operator, and 31850 is stamped on the truth arm. I also hope to match the color as not all of the operators need to be replaced. I need two rh ones and two lh ones.
Tom from SWISCO responded:
June 3, 2020
Based on your photos, I recommend our 39-315 and 39-316 operators to start out. Carefully compare our dimensions to yours to confirm that they all match up.