{"product_id":"so-jbc61634000","title":"Snap-On Backup Ring Parker #8-240\" (JBC61634000 \/ 6-1634)","description":"\u003ch3\u003e\u003cstrong\u003eProduct description\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eThe Snap-On JBC61634000 Backup Ring, corresponding to Parker #8-240, is a critical anti-extrusion component used in conjunction with O-rings in high-pressure hydraulic systems. While the O-ring provides the primary seal, the backup ring is installed behind it to prevent the softer O-ring material from being forced (extruded) into the clearance gaps between moving parts under extreme pressure. This is particularly important in the high-tonnage lifting cylinders of John Bean and Snap-On vehicle lifts, where hydraulic pressures can reach levels that would otherwise damage a standard seal. By providing structural support to the primary seal, the backup ring significantly increases the pressure rating and lifespan of the hydraulic assembly. Using this precise Parker-spec replacement ensures that your equipment maintains its original design safety margins and continues to operate reliably under the heavy loads encountered in a professional automotive bay.\u003c\/p\u003e\u003ch3\u003e\u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnti-Extrusion Design:\u003c\/strong\u003e Prevents O-ring damage and failure by bridging clearance gaps in high-pressure applications.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eParker #8-240 Standard:\u003c\/strong\u003e Manufactured to industry-recognized specifications for guaranteed performance and fitment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncreased Seal Life:\u003c\/strong\u003e Protects the primary O-ring from mechanical deformation, extending the interval between repairs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Pressure Ready:\u003c\/strong\u003e Essential for hydraulic systems where peak pressures exceed the limits of unsupported elastomeric seals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReliable Material:\u003c\/strong\u003e Constructed from rigid, wear-resistant materials designed for the demanding conditions of hydraulic cylinders.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eSpecs\u003c\/strong\u003e\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eComponent Type:\u003c\/strong\u003e Backup Ring\u003c\/li\u003e\n\u003cli\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Cross-Ref:\u003c\/strong\u003e Parker #8-240\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e Snap-On\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number:\u003c\/strong\u003e jbc61634000\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Manufacture:\u003c\/strong\u003e USA\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003e\u003cstrong\u003eDirect replacement models\u003c\/strong\u003e\u003c\/h3\u003e\u003cp\u003eSnap-On JBC61634000, John Bean 61634000, Parker 8-240\u003c\/p\u003e\u003cp\u003eYou will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.\u003c\/p\u003e","brand":"Snap-On","offers":[{"title":"Default Title","offer_id":47314132697253,"sku":"jbc61634000","price":55.13,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0725\/4743\/4661\/files\/snap-on-logo_d7a81a43-ac8b-410b-846a-a8e5339e5043.png?v=1785514028","url":"https:\/\/aepn.net\/products\/so-jbc61634000","provider":"AEPN","version":"1.0","type":"link"}