window balancer

Quick Learner
Metal section is 27 inches long. Marking on the balancer is "20-4 KA2 YXX 7"

Can you please help me identify the part number to order this balancer replacement?
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Bob
Bob from SWISCO
SWISCO
Expert

Thanks for posting. It looks like the top attachment has 'wings', or side tabs, while the bottom one does not. If so, and if the metal channel is definitely 27" long, this is an S395-27 Channel Balance. Double-check the stamp code. If it reads '26-4', then choose a stamp option of 2640. Let me know if you have further questions. 

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