{"product_id":"1b4439-nut-fits-caterpillar-models","title":"1B4439 Nut Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Castle Nut for Caterpillar (Cat) Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement castle nut replaces Caterpillar (Cat) OEM part number 1B4439. Castle nuts feature slotted tops that accept a cotter pin, providing positive locking to resist loosening under vibration and heavy loads -- a critical characteristic for demanding construction and heavy equipment applications. Verify fitment against your machine's parts manual or serial number before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1B4439, 6F7063, 353928, 6B6162, 8T8549\u003c\/p\u003e\u003ch4\u003eAftermarket Interchange Numbers\u003c\/h4\u003e\u003cp\u003eJC35\u003c\/p\u003e\u003cp\u003eNew aftermarket replacement part - not remanufactured, not used.\u003c\/p\u003e","brand":"Reliable Aftermarket Parts, Inc® -OD","offers":[{"title":"Default Title","offer_id":42454015934547,"sku":"1B4439","price":19.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1B4439_01.jpg?v=1757659364","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/1b4439-nut-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}