Need help identifying a part

A handy person from Fitchburg Massachusetts says:
September 18, 2019
I need help finding the right track for the new window casement operator OR a new window casement operator that will fit the exciting track. Thanks
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Bob from SWISCO responded:
September 23, 2019

Thanks for writing in. The new operator looks like our 39-027E. The best thing to do would be to replace the track. See our 39-533. 
A handy person from Fitchburg Massachusetts says:
September 23, 2019
Thanks for the reply. Looks like I have that track already. However, by looking at the bottom of the window, the new track doesn't appear to fit appropriately. Does that make sense?

Will I have to replace the window or do I have hope to possible replace the part?
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Tim from SWISCO responded:
September 25, 2019

I agree. Reviewing the style of your track, and your old operator, I'd say that our 39-365 might be a better option. This has the skinnier steel wheel bearing at the end of the arm and is compatible with our 39-504 track.
A handy person from Fitchburg Massachusetts says:
September 25, 2019
That looks like it! Product Code: 39-365 looks like the match. I just ordered it. Ill keep you posted. Thanks Tim! You can thank Bob too. ?
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Tim from SWISCO responded:
September 26, 2019

Will do! We really appreciate your business. Please let us know how it works out, or if you had anything more to ask us.
Ellipse Style Single Arm Operator, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-027E
$20.70
Ellipse Style Single Arm Operator, 9-1/2"
Ellipse Style Single Arm Operator, 9-1/2"
39-028E
$20.70
11-3/8" Casement Operator Track, 3 Hole
11-3/8" Casement Operator Track, 3 Hole
39-533
$2.95
Crank Handle, 11/32"
Crank Handle, 11/32"
39-114L
$4.42
9-1/2" Single Arm Operator, SS Roller
9-1/2" Single Arm Operator, SS Roller
39-365
$30.99
SS 13-3/4" Channel Guide
SS 13-3/4" Channel Guide
39-504
$6.65
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