{"product_id":"1211603-ring-fits-caterpillar-models","title":"1211603 Ring Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Backup Ring for Caterpillar (Cat) Excavators and Front Shovels\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement backup ring (Caterpillar part number 1211603) is a hydraulic cylinder sealing component used in the bucket cylinder assemblies of large Caterpillar (Cat) excavators and front shovels. Backup rings prevent seal extrusion under high-pressure hydraulic conditions, protecting primary seals and maintaining cylinder integrity during demanding construction and mining operations.\u003c\/p\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Excavators:\u003c\/strong\u003e 365B, 365B II, 365C, 385C, 385C FS\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar Front Shovels:\u003c\/strong\u003e 5080, 5090B\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1211603\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":42450941050963,"sku":"1211603","price":26.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1211603_01.jpg?v=1757627207","url":"https:\/\/www.reliableaftermarketparts.co.uk\/products\/1211603-ring-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}