{"product_id":"343557-bolt-self-locking-fits-caterpillar-models","title":"343557 Bolt Self-Locking Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Self-Locking Bolt for Caterpillar (Cat) Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement self-locking bolt replaces Caterpillar (Cat) OEM part number 343557 (also cataloged as 0343557 and 034-3557). Self-locking bolts feature a built-in locking mechanism that resists loosening under vibration and dynamic loads, making them a critical fastener in demanding construction and heavy equipment applications. This part has been identified across multiple aftermarket sources as a Caterpillar hardware fastener used in transmissions, axles, and engines.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003ePart Type: Self-Locking Bolt\u003c\/li\u003e\n\u003cli\u003eHead Type: Hex\u003c\/li\u003e\n\u003cli\u003eWeight: 0.04 lbs\u003c\/li\u003e\n\u003cli\u003eApplication: Transmissions, axles, engines\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar (Cat):\u003c\/strong\u003e Multiple models - verify fitment by cross-referencing OEM part number 343557 with your machine's parts manual before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e343557, 0343557, 034-3557\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":42453359919187,"sku":"343557","price":34.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/343557_01.jpg?v=1757918603","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/343557-bolt-self-locking-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}