{"product_id":"premium-replacement-needle-bar-thread-guide-410904-540663-for-singer-491d-591-601d-sewing-machine","title":"Needle Bar Thread Guide 410904=540663 for Singer 491D, 591, 601D Sewing Machine","description":"\u003cp\u003eNeedle Bar Thread Guide. This essential component ensures the thread stays perfectly aligned as it enters the needle, preventing fraying, snapping, and skipped stitches at high speeds.\u003c\/p\u003e\n\n\u003cp\u003eThis part is the direct successor to older models and is compatible with both part numbers: 410904 and 540663.\u003c\/p\u003e\n\n\u003cp\u003eCompatible Singer Models:\u003cbr\u003e\nThis needle bar thread guide is a precision fit for the following Singer Industrial models:\u003c\/p\u003e\n\n\u003cp\u003eSinger 491D\u003c\/p\u003e\n\n\u003cp\u003eSinger 591\u003c\/p\u003e\n\n\u003cp\u003eSinger 601D\u003c\/p\u003e\n\n\u003cp\u003eKey Features:\u003cbr\u003e\nDual Part Number Compatibility: Seamlessly replaces original part numbers 410904 and 540663.\u003c\/p\u003e\n\n\u003cp\u003eUltra-Smooth Finish: Polished surfaces reduce friction and heat buildup, protecting your thread from damage during high-speed operation.\u003c\/p\u003e\n\n\u003cp\u003ePerfect Alignment: Engineered to maintain the exact angle required for consistent loop formation and stitch precision.\u003c\/p\u003e\n\n\u003cp\u003eDurable Steel Construction: Built to resist the constant wear of industrial thread movement, ensuring a long service life.\u003c\/p\u003e","brand":"Universal","offers":[{"title":"Default Title","offer_id":48307149897977,"sku":"410904","price":2.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0693\/6733\/3113\/files\/Singer_Premium_Replacement_Parts.jpg?v=1776585850","url":"https:\/\/empenzoamericas.com\/products\/premium-replacement-needle-bar-thread-guide-410904-540663-for-singer-491d-591-601d-sewing-machine","provider":"Empenzo Americas Corp.","version":"1.0","type":"link"}