{"product_id":"1220440-ring-backup-fits-caterpillar-models","title":"1220440 Ring-Backup Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement backup ring (OEM part number 1220440) is a hydraulic sealing component used in Caterpillar construction equipment. Backup rings work in conjunction with O-rings in hydraulic cylinder and sealing applications, preventing the O-ring from extruding into the clearance gap under high-pressure conditions. Replacing a worn or damaged backup ring helps restore hydraulic system integrity and prevents premature seal failure.\u003c\/p\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar (Cat):\u003c\/strong\u003e Please verify compatibility using your machine model and serial number before ordering. This part fits Caterpillar equipment - consult your parts manual or dealer to confirm fitment for your specific machine.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1220440\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":42451143852115,"sku":"1220440","price":39.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_689ceae5-e702-46fb-9475-ee1edd5b2b13.jpg?v=1757719415","url":"https:\/\/www.reliableaftermarketparts.com\/en-au\/products\/1220440-ring-backup-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}