{"product_id":"1b4518-nut-hex-castle-fits-caterpillar-models","title":"1B4518 Nut-Hex Castle Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Hex Castle Nut for Caterpillar (Cat) Equipment\u003c\/h3\u003e\u003cp\u003eThis hex castle nut is a direct aftermarket replacement for Caterpillar OEM part number 1B4518. Castle nuts (also called castellated nuts) feature a slotted crown section that works with a cotter pin through a drilled fastener to prevent loosening under vibration -- a critical characteristic in heavy construction and earthmoving equipment applications. This nut is used across a wide range of Caterpillar machinery where secure, positive-locking fastening is required.\u003c\/p\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar:\u003c\/strong\u003e Fits Caterpillar models -- confirm fitment against your machine's parts manual or serial number prior to ordering, as the 1B-series nut range spans many Cat equipment families including track-type tractors, motor graders, wheel loaders, pipelayers, compactors, and more.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1B4518, 1B-4518\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":42453773385811,"sku":"1B4518","price":38.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1B4518_01.jpg?v=1757954784","url":"https:\/\/www.reliableaftermarketparts.com\/en-au\/products\/1b4518-nut-hex-castle-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}