{"product_id":"boyisen-rv-slide-out-support-jacks-19-47-in-adjustable-5000-lb-capacity-steel-with-quick-release-micro-adjust","title":"BOYISEN RV Slide Out Support Jacks 19–47 in Adjustable, 5000 lb Capacity, Steel with Quick-Release \u0026 Micro-Adjust","description":"\u003cstrong\u003eBOYISEN RV Slide Out Support Jacks are heavy-duty, adjustable stabilizers that protect slide-out mechanisms by offering up to 5,000 lb of support per jack across a 19–47 inch range.\u003c\/strong\u003e\n\n\u003cp\u003eWhen you extend your RV's slide-out, the added weight can strain rails and frames; these BOYISEN support jacks give immediate structural backup, reducing sag, preventing bending, and lowering the risk of costly frame repairs. Built from thick-gauge steel with a corrosion-resistant finish and a practical quick-release and micro-adjust crank system, they combine rugged durability with precise, tool-free setup.\u003c\/p\u003e\n\n\u003ch3\u003eHow do these jacks protect my RV’s slide-out mechanism?\u003c\/h3\u003e\n\u003cp\u003eThe jacks transfer weight from the slide-out assembly to the ground, taking stress off the slide rails and frame. By supporting the outer end of the slide, they reduce flex and keep alignment intact during use and travel stops.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEach jack holds up to 5,000 lbs to absorb heavy loads safely.\u003c\/li\u003e\n  \u003cli\u003eWide 19–47 in adjustment fits low trailers and tall fifth-wheels alike.\u003c\/li\u003e\n  \u003cli\u003ePrevents sagging that leads to bent rails and costly repairs.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow fast and accurate is the setup?\u003c\/h3\u003e\n\u003cp\u003eSetup is a two-step process: quick-release pin for coarse positioning, then the micro-adjustment crank for a precise snug fit. Most users can position and fine-tune a pair in minutes without tools.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eQuick-release pin offers fast, tool-free height selection.\u003c\/li\u003e\n  \u003cli\u003eMicro-adjust crank lets you dial in millimeter-level pressure against the rail.\u003c\/li\u003e\n  \u003cli\u003eThird storage pin hole locks for compact, safe transport when stowed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill these jacks hold up in outdoor conditions and heavy use?\u003c\/h3\u003e\n\u003cp\u003eBOYISEN designed these jacks for long-term exposure: thick steel components plus an anti-rust coating resist corrosion and wear. The robust construction and load capacity mean the set is meant to be the last replacement you buy for slide-out support.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eHeavy-gauge steel construction resists bending under load.\u003c\/li\u003e\n  \u003cli\u003eDurable anti-rust finish protects against rain and road salts.\u003c\/li\u003e\n  \u003cli\u003eEngineered for repeated use season after season without performance loss.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhich RVs are these jacks compatible with and how many do I need?\u003c\/h3\u003e\n\u003cp\u003eThe 19–47 inch range covers most travel trailers and fifth wheels; the adjustability makes them suitable for smaller pop-outs as well as large, heavy slide-outs. Typically buyers install a pair for a single slide-out; larger or unusually heavy assemblies may require additional supports.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRange fits low-profile trailers through high-rise fifth-wheels.\u003c\/li\u003e\n  \u003cli\u003eOne pair is standard for most single slide-outs; add more for extra-large rooms.\u003c\/li\u003e\n  \u003cli\u003eThird storage pin secures jacks compactly when not in use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: RV owners who value protecting their slide-out investment and want a durable, easy-to-use support solution. If you use your slide-out frequently, tow over varied roads, or simply want to avoid frame and rail repairs, BOYISEN’s 5000 lb adjustable jacks provide peace of mind with fast setup, weather-resistant construction, and heavy-duty load capacity.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: How much weight can each BOYISEN jack hold?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Each jack supports up to 5,000 pounds, offering heavy-duty protection for most RV slide-outs.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What is the adjustment range and is installation tool-free?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Adjustable from 19 to 47 inches; coarse height uses a quick-release pin and final fit uses the included crank, usually tool-free.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"BOYISEN","offers":[{"title":"Default Title","offer_id":48081186652318,"sku":"B0CLZZVSGQ","price":94.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/boyisen-front-packaging-rv-jack.jpg?v=1785797921","url":"https:\/\/northtrailauto.ca\/products\/boyisen-rv-slide-out-support-jacks-19-47-in-adjustable-5000-lb-capacity-steel-with-quick-release-micro-adjust","provider":"North Trail Auto","version":"1.0","type":"link"}