{"product_id":"am-16-cylinder","title":"EQ Systems AM 16 Hydraulic Cylinder | Part 1140EQ | 16\" Stroke | 4\" AM\/CM Series Jacks","description":"\u003cp\u003eReplace a leaking, pressure-losing, or non-holding \u003cstrong\u003eAM series 16\" stroke hydraulic cylinder\u003c\/strong\u003e in your EQ Systems tube-in-tube trailer jack with the \u003cstrong\u003eEQ Systems AM 16 Cylinder (Part 1140EQ)\u003c\/strong\u003e. The cylinder is the working part inside the 4\" 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 AM\/CM Series Replacement\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eFits AM and CM series tube-in-tube jacks\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e16\" stroke\u003c\/strong\u003e, 2.5\" cylinder bore\u003c\/li\u003e\n  \u003cli\u003eFor jacks with a \u003cstrong\u003e4\" square outer tube 24½\" long\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003eJack capacity: 12,000 lbs (each jack)\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\u003e4\" square × 24½\" long = 16\" stroke AM (this cylinder, 1140)\u003c\/strong\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/am-20-cylinder\"\u003e\u003cstrong\u003e4\" square × 28½\" long = 20\" stroke (Part 1480)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"\/products\/am-24-cylinder\"\u003e\u003cstrong\u003e4\" square × 32½\" long = 24\" stroke (Part 1179)\u003c\/strong\u003e\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e4\" square × 38½\" long = 30\" stroke (Part 1481)\u003c\/li\u003e\n  \u003cli\u003e4\" square × 50½\" long = 42\" stroke (Part 1160)\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=\"\/products\/am-20-cylinder\"\u003e\u003cstrong\u003eAM 20 Cylinder (1480EQ)\u003c\/strong\u003e\u003c\/a\u003e — 20\" stroke, 4\" tube\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/am-24-cylinder\"\u003e\u003cstrong\u003eAM 24 Cylinder (1179EQ)\u003c\/strong\u003e\u003c\/a\u003e — 24\" stroke, 4\" tube\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/aj-70-cylinder\"\u003e\u003cstrong\u003eAJ 70 Cylinder (2505EQ)\u003c\/strong\u003e\u003c\/a\u003e — AJ series (3.5\" tube)\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\u003c\/ul\u003e\n\n\u003ch3\u003eRelated AM Series Jacks\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/am-2-24-hydraulic-jacks-with-manual-override\"\u003e\u003cstrong\u003eAM 2\/24 Dual Leg\u003c\/strong\u003e\u003c\/a\u003e — complete AM series trailer jack system\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/am-1-24-with-manual-override-screw-drive\"\u003e\u003cstrong\u003eAM 1\/24 Single Leg\u003c\/strong\u003e\u003c\/a\u003e — single-leg AM system\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: AM 16 Cylinder\u003c\/li\u003e\n  \u003cli\u003eSKU: 1140EQ\u003c\/li\u003e\n  \u003cli\u003eJack Series: AM\/CM tube-in-tube\u003c\/li\u003e\n  \u003cli\u003eStroke: 16\"\u003c\/li\u003e\n  \u003cli\u003eCylinder Bore: 2.5\"\u003c\/li\u003e\n  \u003cli\u003eFits Outer Tube: 4\" square × 24½\" long\u003c\/li\u003e\n  \u003cli\u003eJack Capacity: 12,000 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":58472494793007,"sku":"1140EQ","price":683.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7663\/0063\/files\/AM-16-1140-scaled.jpg?v=1789494557","url":"https:\/\/thervsurplus.com\/products\/am-16-cylinder","provider":"The RV Surplus","version":"1.0","type":"link"}