{"product_id":"1723918-seal-as-fits-caterpillar-models","title":"1723918 Seal As Fits Caterpillar Models","description":"\u003ch3\u003eOne New Aftermarket Replacement Seal Assembly for Caterpillar (Cat) Construction Equipment\u003c\/h3\u003e\u003cp\u003eThis aftermarket replacement seal assembly replaces Caterpillar (Cat) part number 172-3918 (1723918). It is a two-piece hydraulic cylinder piston seal consisting of a plastic ring seal and a rubber expander, designed to restore proper sealing in hydraulic cylinders with a 210mm bore diameter. Replacing a worn or leaking piston seal helps maintain hydraulic pressure, prevents fluid bypass, and restores cylinder performance on Cat heavy equipment.\u003c\/p\u003e\u003ch4\u003eSpecifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSeal Type: Two-Piece Piston Seal Assembly\u003c\/li\u003e\n\u003cli\u003eConstruction: Plastic ring seal with rubber expander\u003c\/li\u003e\n\u003cli\u003eBore Diameter: 210mm\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatible Models\u003c\/h4\u003e\u003cp\u003e\u003cstrong\u003eCaterpillar (Cat):\u003c\/strong\u003e Please verify compatibility with your specific Cat model and serial number before ordering. This seal is designed for hydraulic cylinders with a 210mm bore diameter.\u003c\/p\u003e\u003ch4\u003eReplaces Part Number(s):\u003c\/h4\u003e\u003cp\u003e1723918, 172-3918\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":42454018195539,"sku":"1723918","price":76.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0079\/4060\/3955\/files\/1723918_01.jpg?v=1757656077","url":"https:\/\/www.reliableaftermarketparts.ca\/products\/1723918-seal-as-fits-caterpillar-models","provider":"Reliable Aftermarket Parts, Inc®","version":"1.0","type":"link"}