Genuine Thread Break Detector A 40003499 for Juki LBH-1790AN 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.
Genuine Juki Thread Break Detector A (400-03499). This high-sensitivity electronic sensor is a vital safety component for automated Juki industrial sewing machines, designed to instantly stop the machine the moment a thread break is detected.
✔ 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