Premium Replacement Lower Thread Guide (M1) S21137001 for Brother EF4-N21 Sewing Machine
GET PRICE & CONFIRM FIT
⚠️ Avoid ordering the wrong part — confirm before you buy
Submit your request using the form below and our team will quickly confirm pricing, availability, and shipping options.
Looking for multiple sewing machine parts?
Send us your parts list - our team will help you source them quickly at competitive pricing.
Fast response for urgent spare parts requests.
The S21137-0-01 Lower Thread Guide (M1) is a high-quality replacement part designed for Brother N Series overlock sewing machines. It ensures precise guidance for the looper thread, helping to prevent tangles and maintain consistent stitch quality. Made from durable materials, this thread guide enhances machine performance, improves sewing efficiency, and provides reliable, long-lasting operation for both professional and home sewing applications.
✔ Free shipping on orders over $99
✔ Ships from our USA (Georgia) office when in stock
✔ Weekly restocking from Japan, China, Bangladesh, and Turkey warehouses
✔ 3–7 business days handling time
✔ Compatible with multiple industrial sewing machines
✔ Carefully inspected before shipment
💡 Add more items to your cart to qualify for free shipping ($99+)
📩 Not sure if this fits? Send us your machine model or a photo — we’ll help you confirm.
⚠️ Please confirm your machine model before ordering