Andersen window crank identification

Question

I need to replace a broken crank.  1361318 is stamped on the 4.5" arm.  An R (for right?) is stamped on the arm under the number.  From outside the hinges are on the left so in theory I should need a left crank.  But when I search for the part number, your site gives me the oposite opener or a right crank (the number and the R match up but the picture is opposite of mine).  So you can see I am confused.  I could order it completely by matching your picture to my crank.  Are your pictures accurate or do I order it by number?

Casey · Accepted Answer

It is best to match up to the image online. SWISCO product code 39-146 has 1361316 stamped under the arm and SWISCO product code 39-147 has 1361318 stamped on the top of the arm.