{"product_id":"hyh10-0071-b-u-ring","title":"HYH10-0071 - B-U-RING","description":"\u003ch3\u003eOne New Aftermarket Replacement Hydraulic Backup Ring (B-U-Ring) Fits Caterpillar (Fits CAT) Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement backup ring is a hydraulic sealing component used in Fits Caterpillar (Fits CAT) hydraulic cylinder assemblies. Backup rings are installed alongside O-rings to prevent seal extrusion under high-pressure conditions, protecting the integrity of the hydraulic system and extending overall seal service life. This part is a direct aftermarket replacement Fits Caterpillar OEM part number 4J9220.\u003c\/p\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eFits Caterpillar (Fits CAT):\u003c\/strong\u003e Fits various Fits Caterpillar construction and heavy equipment models that use OEM part number 4J9220. Verify fitment using your machine model and serial number before ordering.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003eM4J9220, 4J9220\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":42093524779091,"sku":"HYH10-0071","price":39.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/RAP_ComingSoon_Tractor_6c7fa54a-095c-41c6-a56f-a39b5b7c2cad.jpg?v=1757746464","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/hyh10-0071-b-u-ring","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}