{"product_id":"1838068-backup-ring-fits-caterpillar-models","title":"1838068 Backup Ring Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket backup ring replaces Caterpillar (Cat) OEM part number 1838068. Backup rings are anti-extrusion devices installed alongside O-rings and other elastomeric seals in hydraulic and sealing systems. They are used in high-pressure static and dynamic sealing applications -- such as hydraulic pumps, cylinders, valves, and engine systems -- where pressure surges could otherwise cause seal extrusion and premature failure. The backup ring bridges the seal groove and mating surface, protecting the primary seal and extending overall sealing system life.\u003c\/p\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar:\u003c\/strong\u003e Verify fitment by part number 1838068 against your machine's serial number and parts diagram. Contact us if you need assistance confirming compatibility.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1838068\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":42450942525523,"sku":"1838068","price":41.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1838068_01.jpg?v=1757718272","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/1838068-backup-ring-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}