{"product_id":"aj-70-cylinder","title":"EQ Systems AJ 70 Hydraulic Cylinder | Part 2505EQ | 24\" Stroke | 3½\" AJ\/CJ Series","description":"\u003cp\u003eReplace a leaking, pressure-losing, or non-holding \u003cstrong\u003eAJ series 24\" stroke hydraulic cylinder\u003c\/strong\u003e in your EQ Systems tube-in-tube jack with the \u003cstrong\u003eEQ Systems AJ 70 Cylinder (Part 2505EQ)\u003c\/strong\u003e. The cylinder is the working part inside the 3½\" square outer tube — \u003cstrong\u003eouter tube, brackets and foot stay on the trailer; only the cylinder gets swapped\u003c\/strong\u003e. Used in AJ 2\/24, AJ 1\/24 and CJ series jacks. Available at The RV Surplus.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment critical:\u003c\/strong\u003e Verify cylinder configuration before ordering. Call EQ Systems at \u003cstrong\u003e800-846-9659\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003e⭐ 24\" Stroke AJ\/CJ Series — 8,000 lbs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFits AJ and CJ series tube-in-tube jacks — light-duty horse\/motorsports trailer range\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e24\" stroke\u003c\/strong\u003e, 2\" cylinder bore\u003c\/li\u003e\n  \u003cli\u003eFor jacks with a \u003cstrong\u003e3½\" square outer tube 32¾\" long\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⭐ Identifying the Right Cylinder\u003c\/h3\u003e\n\u003cp\u003eCylinders are identified by the \u003cstrong\u003eouter tube of the jack, not by the bracket\u003c\/strong\u003e. Measure the square dimension of the outer tube and its length: \u003cstrong\u003e3½\" square × 32¾\" long = 24\" stroke AJ (this cylinder, 2505)\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003ch3\u003e⭐ Always SAE Fittings\u003c\/h3\u003e\n\u003cp\u003eUnlike other cylinders in the EQ range, \u003cstrong\u003ethe AJ 70 has always been supplied with SAE fittings\u003c\/strong\u003e (no threads exposed between the cylinder body and the hex).\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSAE:\u003c\/strong\u003e no threads exposed between the cylinder body and the hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNPTF:\u003c\/strong\u003e threads exposed between the cylinder body and the hex\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eIf your jack has NPTF fittings, call EQ Systems at 800-846-9659 before ordering\u003c\/strong\u003e so the correct replacement fittings go out with the cylinder.\u003c\/p\u003e\n\n\u003ch3\u003eDocuments\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/eqsystems.us\/cdn\/shop\/files\/Hydraulic_Cylinder_Identification_for_Tube-in-Tube_Jacks.pdf\" target=\"_blank\"\u003eHydraulic Cylinder Identification for Tube-in-Tube Jacks (PDF)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/eqsystems.us\/cdn\/shop\/files\/EQS1004R3-EQ-Systems-Commercial.pdf\" target=\"_blank\"\u003eEQ Systems Hydraulic Jack Options, Commercial Range (PDF)\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/eqsystems.us\/cdn\/shop\/files\/Required-Maintenance-Items-Hydraulic-Systems-EQ-TM.pdf\" target=\"_blank\"\u003eRequired Maintenance Items for EQ Hydraulic Jacks \u0026amp; Slide Systems (PDF)\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRelated AJ Series Jacks (Uses This Cylinder)\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/aj-hydraulic-trailer-jack-1-24-with-manual-override-screw-drive\"\u003e\u003cstrong\u003eAJ 1\/24 Single Leg Screw Drive\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/aj-2-24-jack-system\"\u003e\u003cstrong\u003eAJ 2\/24 Dual Leg Tandem\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/aj-hydraulic-trailer-jacks-2-24-with-2-function-manual-selector\"\u003e\u003cstrong\u003eAJ 2\/24 with 2-Function Manual Selector\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eOther Cylinders\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/am-24-cylinder\"\u003e\u003cstrong\u003eAM 24 Cylinder (1179EQ)\u003c\/strong\u003e\u003c\/a\u003e — heavier AM series (4\" tube, 12,000 lbs)\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/tj-replacement-cylinder\"\u003e\u003cstrong\u003eTJ Replacement Cylinder (1218EQ)\u003c\/strong\u003e\u003c\/a\u003e — TJ tongue jack\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/ct-20-cylinder\"\u003e\u003cstrong\u003eCT 20 Cylinder (1178)\u003c\/strong\u003e\u003c\/a\u003e — CT series (4½\" tube)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e90-Day Warranty\u003c\/h3\u003e\n\u003cp\u003eBacked by EQ Systems' \u003cstrong\u003e90-day replacement part warranty\u003c\/strong\u003e. Check documentation for full terms.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eBrand: EQ Systems\u003c\/li\u003e\n  \u003cli\u003eModel: AJ 70 Cylinder\u003c\/li\u003e\n  \u003cli\u003eSKU: 2505EQ\u003c\/li\u003e\n  \u003cli\u003eJack Series: AJ\/CJ tube-in-tube (light-duty)\u003c\/li\u003e\n  \u003cli\u003eStroke: 24\"\u003c\/li\u003e\n  \u003cli\u003eCylinder Bore: 2\"\u003c\/li\u003e\n  \u003cli\u003eFits Outer Tube: 3½\" square × 32¾\" long\u003c\/li\u003e\n  \u003cli\u003eJack Capacity: 8,000 lbs\u003c\/li\u003e\n  \u003cli\u003eFittings: \u003cstrong\u003eAlways SAE\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eWarranty: 90-day replacement part warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"EQ Systems","offers":[{"title":"Default Title","offer_id":58472496857391,"sku":"2505EQ","price":477.23,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7663\/0063\/files\/AJ-70-2505EQ-scaled.jpg?v=1789494570","url":"https:\/\/thervsurplus.com\/products\/aj-70-cylinder","provider":"The RV Surplus","version":"1.0","type":"link"}