{"product_id":"andersen-4-inch-trailer-jack-block-3684","title":"Andersen 4\" Trailer Jack Block | 3684 | 9\" Magnetic Jack Pad | Red","description":"\u003cp\u003eGet solid, no-slip footing under your stabilizers in a low-profile package with the \u003cstrong\u003eAndersen 3684 4\" Trailer Jack Block\u003c\/strong\u003e. Built-in magnets snap the block onto the jack pad so it travels with the jack, and the 4\" height gives just enough lift to keep jacks off soft ground and out of their fully extended, weakest range.\u003c\/p\u003e\n\u003ch3\u003e⚠️ Load Ratings\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cstrong\u003eSingle block: 30,000 lb\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eDouble-stacked: 20,000 lb\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eDo not stack more than two.\u003c\/p\u003e\n\u003ch3\u003e4\" vs. 8\" — Which Block?\u003c\/h3\u003e\n\u003cp\u003eThe 3684 is the compact 4\" version — ideal for fifth wheel landing gear, leveling systems with round feet, and any jack where an 8\" block would over-extend the frame. If you need more height under scissor or post jacks, see the 8\" \u003ca href=\"https:\/\/thervsurplus.com\/products\/andersen-trailer-jack-block-3608\"\u003eAndersen 3608 Trailer Jack Block\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMagnetic locking\u003c\/strong\u003e — snaps onto jack pads up to 9\" round\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4\" height\u003c\/strong\u003e for optimal lift without over-extending jacks\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30,000 lb\u003c\/strong\u003e single-block rating\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty plastic\u003c\/strong\u003e — resists dirt and oil\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eMade in the USA\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLifetime warranty\u003c\/strong\u003e on plastic components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBrand: Andersen Hitches\u003c\/li\u003e\n\u003cli\u003ePart Number: 3684\u003c\/li\u003e\n\u003cli\u003eType: Magnetic Trailer Jack Block\u003c\/li\u003e\n\u003cli\u003eHeight: 4\"\u003c\/li\u003e\n\u003cli\u003eFits: Jack pads up to 9\" round\u003c\/li\u003e\n\u003cli\u003eCapacity: 30,000 lb single; 20,000 lb double-stacked\u003c\/li\u003e\n\u003cli\u003eColor: Red\u003c\/li\u003e\n\u003cli\u003eQuantity: 1\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Andersen","offers":[{"title":"Default Title","offer_id":58444028313903,"sku":"3684","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0729\/7663\/0063\/files\/Andersen_Single4in_TrailerJackBlock_3684_4inTall_9inRound_Red_02.png?v=1788916277","url":"https:\/\/thervsurplus.com\/products\/andersen-4-inch-trailer-jack-block-3684","provider":"The RV Surplus","version":"1.0","type":"link"}