Part name and where to purchase new one

A handy person from Harleysville, Pa says:
Marvin window double hung tilt window. They were installed in 1999-2000
Profile picture of Casey
Casey from SWISCO responded:

You'll need our 15-191 pivot shoe, which uses our Series 160 coil springs. You'll also need the spring weight stamped on the old spring when ordering. The nylon spring cover has been replaced with our 15-150S cover. 

You only need to replace what is broken, so take a look at the parts we've listed and let us know if you have any other questions. Thank you!

How to replace a window coil balance
How to replace a window coil balance
VIDEO
WATCH >
How to Replace a Triple Coil Balance System
How to Replace a Triple Coil Balance System
VIDEO
WATCH >
How to remove window pivot shoes
How to remove window pivot shoes
VIDEO
WATCH >
Anatomy of a tilt window
Anatomy of a tilt window
VIDEO
WATCH >
Removing a Triple Coil Window Balance
Removing a Triple Coil Window Balance
GUIDE
READ >
Reply to Thread
Use this form to ask a follow-up question or to share your experience regarding this subject.
(your email address will be kept private and is only used to inform you when a response has been made)
Current wait time is 3-4 business days
We promise that one of our experts will personally get back to you as soon as they are able. Thank you very much for your patience and understanding. If your inquiry is time-sensitive, please feel free to reach us at (888) 991-1929 or at help@swisco.com.