Lower Knife Steel Blade for Brother & Singer Sergers - 112436-0-01

Replacement Lower Knife for Select Brother and Singer Sergers

This lower knife is a direct replacement part designed for compatible Brother and Singer machines. It is identified by part number 112436-0-01 and alternate part number 155193-0-01, making it a practical choice when you need to restore cutting performance on your serger.

Built for use with specific machine models, this replacement knife helps maintain clean, consistent trimming during sewing operations. It is suited for users looking for a dependable sewing machine knife that matches the original part specification and supports routine maintenance or repair.

Compatible machine models listed in the source data:

• Brother B511
• Brother B531
• Brother EF4-B561
• Brother EF4-B571
• Brother MA4-B551
• Brother MA4-B581
• Singer 842U

Choose this replacement lower knife when you need a compatible sewing machine essential for keeping your serger operating smoothly. It is a focused replacement component for repair shops, industrial sewing environments, and home users maintaining supported machines.