{"product_id":"sm-16-cylinder","title":"EQ Systems SM 16 Hydraulic Cylinder | Part 1573EQ | 16\" Stroke | 5\" SM Commercial Series","description":"\u003cp\u003eReplace a leaking, pressure-losing, or non-holding \u003cstrong\u003eSM series 16\" stroke hydraulic cylinder\u003c\/strong\u003e in your EQ Systems tube-in-tube jack with the \u003cstrong\u003eEQ Systems SM 16 Cylinder (Part 1573EQ)\u003c\/strong\u003e. The cylinder is the working part inside the 5\" square outer tube — \u003cstrong\u003eouter tube, brackets and foot stay on the trailer; only the cylinder gets swapped\u003c\/strong\u003e. 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⭐ 16\" Stroke SM Series Replacement — 25,000 lbs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFits SM series tube-in-tube jacks — \u003cstrong\u003eheavy-duty commercial (25,000 lbs per jack)\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16\" stroke\u003c\/strong\u003e, 3.5\" cylinder bore\u003c\/li\u003e\n  \u003cli\u003eFor jacks with a \u003cstrong\u003e5\" square outer tube 24\" 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. Jacks of the same size can carry different brackets and still take the same cylinder. Measure the square dimension of the outer tube and its length:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003cstrong\u003e5\" square × 24\" long = 16\" stroke SM (this cylinder, 1573)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-au\/products\/sm-20-cylinder\"\u003e\u003cstrong\u003e5\" square × 28\" long = 20\" stroke (Part 1104)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e5\" square × 32\" long = 24\" stroke (Part 1407)\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/en-au\/products\/sm-30-cylinder\"\u003e\u003cstrong\u003e5\" square × 38¼\" long = 30\" stroke (Part 1135)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e5\" square × 43¾\" long = 36\" stroke (Part 1406)\u003c\/li\u003e\n  \u003cli\u003e5\" square × 75⅞\" long = 60\" stroke (Part 2891)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e⭐ Check Your Fittings — NPTF vs SAE\u003c\/h3\u003e\n\u003cp\u003eOlder cylinders were built with \u003cstrong\u003eNPTF fittings\u003c\/strong\u003e; current production uses \u003cstrong\u003eSAE\u003c\/strong\u003e. Quick check:\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\u003eThis cylinder has shipped with both types over its life. \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\u003eOther Cylinders\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/en-au\/products\/sm-20-cylinder\"\u003e\u003cstrong\u003eSM 20 Cylinder (1104)\u003c\/strong\u003e\u003c\/a\u003e — 20\" stroke, 5\" tube\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/en-au\/products\/sm-30-cylinder\"\u003e\u003cstrong\u003eSM 30 Cylinder (1135EQ)\u003c\/strong\u003e\u003c\/a\u003e — 30\" stroke, 5\" tube\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/en-au\/products\/am-16-cylinder\"\u003e\u003cstrong\u003eAM 16 Cylinder (1140EQ)\u003c\/strong\u003e\u003c\/a\u003e — smaller AM series (4\" tube)\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/en-au\/products\/ct-20-cylinder\"\u003e\u003cstrong\u003eCT 20 Cylinder (1178)\u003c\/strong\u003e\u003c\/a\u003e — CT series\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: SM 16 Cylinder\u003c\/li\u003e\n  \u003cli\u003eSKU: 1573EQ\u003c\/li\u003e\n  \u003cli\u003eJack Series: SM tube-in-tube (heavy-duty commercial)\u003c\/li\u003e\n  \u003cli\u003eStroke: 16\"\u003c\/li\u003e\n  \u003cli\u003eCylinder Bore: 3.5\"\u003c\/li\u003e\n  \u003cli\u003eFits Outer Tube: 5\" square × 24\" long\u003c\/li\u003e\n  \u003cli\u003eJack Capacity: 25,000 lbs\u003c\/li\u003e\n  \u003cli\u003eFittings: NPTF or SAE (verify before ordering)\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":58467186114863,"sku":"1573EQ","price":1329.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7663\/0063\/files\/SM-16-1573EQ-scaled_bfee8781-f351-4a9b-807a-6fec0a1b77f0.jpg?v=1789394614","url":"https:\/\/thervsurplus.com\/en-au\/products\/sm-16-cylinder","provider":"The RV Surplus","version":"1.0","type":"link"}