Siminton Coil balance replacements

A quick learner from Berkeley, CA says:
September 18, 2022
I would like to replace the plastic parts pictured, 4 610 108. The windows are Siminton, manufactured in 1999.

The coils seem fine, it's just the plastic part, 4 610 108, that are broken. Can you recommend the replacement part that fits.

Initially I would like to order 2 sets, left and right, for 2 windows. I believe you have a "heavy duty" replacement.

The replacements must allow attachment to the existing coil mechanism, which is not damaged.

Thank you,
Bonnie
Thumbnail of the uploaded file named DB5B5210-12A2-4399-9B5B-C2B2D815A6F0.png
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Casey from SWISCO responded:
September 21, 2022

Hello,

Your photos resemble the 15-111 or 15-191 heavy-duty pivot shoe, which are compatible with the 1/2" wide Series 160 coil springs. Take a look at the specifications shown on our product pages, along with the list of related items that work with these parts. Thanks for posting! 
Pivot Shoe, 1/2" Thick
Pivot Shoe, 1/2" Thick
15-111
$2.44
Heavy Duty Pivot Shoe, 1/2" Thick
Heavy Duty Pivot Shoe, 1/2" Thick
15-191
$2.57
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