{"product_id":"caterpillar-4j-9221-o-ring-seal-for-hydraulic-system","title":"Caterpillar 4J-9221 O-Ring Seal for Hydraulic System","description":"\u003cdiv\u003e\u003cp\u003eCaterpillar 4J-9221 is a rubber backup ring for hydraulic cylinders, with an internal diameter of 124.28 mm and a thickness of 3 mm. Backup rings like 4J-9221 are designed to work with elastomeric seals and mating components, helping extend the life and performance of high-pressure sealing assemblies. This Cat part is intended for cylinder applications in hydraulic systems. \u003c\/p\u003e\u003c\/div\u003e","brand":"Caterpillar","offers":[{"title":"New Surplus No Box","offer_id":51677849157934,"sku":null,"price":44.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0940\/0818\/1038\/files\/Ebay_website_image_86f1e8cc-6f7d-4357-85ce-470204a135f5.jpg?v=1769568381","url":"https:\/\/plgautomation.com\/products\/caterpillar-4j-9221-o-ring-seal-for-hydraulic-system","provider":"PLG Automation ","version":"1.0","type":"link"}