{"id":10113,"date":"2026-08-18T15:53:33","date_gmt":"2026-08-18T19:53:33","guid":{"rendered":"https:\/\/brechbilltrailers.com\/parts\/?post_type=product&#038;p=10113"},"modified":"2026-08-18T17:13:11","modified_gmt":"2026-08-18T21:13:11","slug":"demco-ez-latch-gooseneck-coupler-4-square-inner-tube-30k-2-5-16-ball-fits-bigtex-square-gooseneck-new-take-off","status":"publish","type":"product","link":"https:\/\/brechbilltrailers.com\/parts\/couplers\/gooseneck-couplers\/demco-ez-latch-gooseneck-coupler-4-square-inner-tube-30k-2-5-16-ball-fits-bigtex-square-gooseneck-new-take-off\/","title":{"rendered":"DEMCO \u2013 EZ Latch GOOSENECK COUPLER \u2013 4&#8243; SQUARE INNER TUBE \u2013 30K, 2-5\/16&#8243; Ball \u2013 New Take-Off"},"content":{"rendered":"<h3 class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Demco eZ-Latch Gooseneck Coupler \u2013 Set It On The Ball. It Latches Itself.\r\n4&#8243; SQUARE INNER TUBE \u2013 30K, 2-5\/16&#8243; Ball \u2013 Fits BigTex Square Gooseneck \u2013 New Take-Off\r\n<\/strong><\/h3>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>No more climbing into the truck bed.<\/strong> Drop the coupler onto your 2-5\/16&#8243; ball, and the eZ-Latch closes and locks on contact. Lift the handle to uncouple. The dished socket means you only have to get <em>close<\/em> to the ball, not center it perfectly.<\/p>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>New Take-Off \u2013 What That Means<\/strong><\/p>\r\n\r\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\" dir=\"ltr\">\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Comes off a <strong>brand-new<\/strong> gooseneck trailer at our dealership because a customer switched to a kingpin or shock-absorbing coupler.<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>The trailer was never towed down the road<\/strong><\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Expect scuff marks and small paint chips from lot handling \u2014 <strong>cosmetic only<\/strong><\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Mechanically new, never used, perfect working condition<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Well below the price of a new one<\/li>\r\n<\/ul>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Key Features<\/strong><\/p>\r\n\r\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\" dir=\"ltr\">\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Automatic eZ-Latch<\/strong> \u2013 Couples and locks the moment it contacts the ball<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Dished Ball Socket<\/strong> \u2013 Guides itself onto the ball<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>30,000 lb. Gross Trailer Weight<\/strong> \u2013 Equipment, livestock, heavy hauling<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>8-1\/4&#8243; Height Adjustment<\/strong> \u2013 Four pin positions to level your trailer<\/li>\r\n \t<li><strong>One-Motion Release<\/strong> \u2013 Lift the composite handle<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Exceeds SAE J684<\/strong> \u2013 No separate safety pin required<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Steel and Cast Construction<\/strong> \u2013 Yellow powder coat<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Made in the USA<\/strong><\/li>\r\n<\/ul>\r\n<p dir=\"ltr\"><strong><em>Outer tube not included.<\/em><\/strong><\/p>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Specifications<\/strong><\/p>\r\n\r\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\" dir=\"ltr\">\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Inner tube: 4&#8243; square<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Overall length: 28-1\/2&#8243;<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Ball size: 2-5\/16&#8243;<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Gross trailer weight: 30,000 lb.<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Adjustment holes: 4, 13\/16&#8243; diameter<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Hole spacing: 2-3\/4&#8243; on center<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Total adjustment: 8-1\/4&#8243;<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Bottom to first hole: 10-3\/4&#8243;<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Weight: 38 lb. 3 oz.<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Finish: Yellow powder coat<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Latch: Demco eZ-Latch, composite handle<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Origin: Made in USA<\/li>\r\n<\/ul>\r\nMODEL: Demco eZ-Latch Gooseneck Coupler, Square Inner Tube\r\nMANUFACTURER PART NUMBER: 17839-81\r\nALTERNATE ITEM NUMBER: 17839-44\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Safe On Gooseneck Dump Trailers<\/strong><\/p>\r\n\r\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\" dir=\"ltr\">\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">The ball carries the trailer&#8217;s weight, not the latch<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">Stays engaged under both push and pull as the trailer angle changes through a dump cycle<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\">The latch retains the coupler on the ball; it is not a load-bearing pin<\/li>\r\n<\/ul>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Before You Order \u2013 Measure Your Outer Tube<\/strong><\/p>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Replaces the <strong>inner tube only<\/strong>. The outer tube welded to your trailer stays put. Check these first:<\/p>\r\n\r\n<ul class=\"[li_&amp;]:mb-0 [li_&amp;]:mt-1 [li_&amp;]:gap-1 [&amp;:not(:last-child)_ul]:pb-1 [&amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\" dir=\"ltr\">\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Square tube only.<\/strong> Round inner tube is a different part and will not fit.<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Outer tube should measure 4-1\/2&#8243; O.D. with 4&#8243; I.D.<\/strong><\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Pin holes must be straight, not angled.<\/strong> Angled holes leave the latch crooked.<\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Hole spacing 2-3\/4&#8243; on center, 13\/16&#8243; diameter.<\/strong><\/li>\r\n \t<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Bottom edge of coupler to center of first hole: 10-3\/4&#8243;<\/strong><\/li>\r\n<\/ul>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"><strong>Big Tex Square Gooseneck Fitment<\/strong><\/p>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Commonly found on Big Tex gooseneck trailers \u2014 which is why these are yellow rather than the black version sold through retail.<\/p>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Not limited to Big Tex. Any trailer with a 4&#8243; square gooseneck inner tube and straight pin holes on 2-3\/4&#8243; centers is a candidate. <strong>Fitment is determined by your tube dimensions, not your trailer&#8217;s nameplate.<\/strong><\/p>\r\n<p class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\">Not sure? Call <strong>717-369-8733<\/strong> with your measurements and we&#8217;ll confirm fitment.<\/p>\r\n\r\n\r\n<hr \/>\r\n\r\n\r\n<div class=\"container\">\r\n<div class=\"row justify-content-center\">\r\n<div class=\"col-12 col-lg-6\">\r\n<div class=\"video-container-youtube\"><iframe src=\"https:\/\/www.youtube.com\/embed\/Lf77UB_9flk?si=nCbptvsI1CKHur3f\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/div>\r\n<\/div>\r\n<\/div>\r\n<\/div>\r\n&nbsp;\r\n\r\n","protected":false},"excerpt":{"rendered":"<ul>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Automatic eZ-Latch Coupling<\/strong><\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>30,000 lb. Gross Trailer Weight<\/strong><\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>2-5\/16&#8243; Ball<\/strong><\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>4&#8243; Square Inner Tube<\/strong><\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>8-1\/4&#8243; Height Adjustment<\/strong><\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>New Take-Off \u2013 Never Towed<\/strong><\/li>\n<li class=\"font-claude-response-body whitespace-normal break-words pl-2\"><strong>Made in the USA<\/strong><\/li>\n<\/ul>\n","protected":false},"featured_media":10121,"comment_status":"open","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_members_access_role":[],"_members_access_error":""},"product_brand":[],"product_cat":[239,243],"product_tag":[],"class_list":["post-10113","product","type-product","status-publish","has-post-thumbnail","product_cat-couplers","product_cat-gooseneck-couplers","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"acf":{"synced_to_bbt":"No","is_below_low_stock_threshold":"Yes","wc_brand_name":"DEMCO","manufacture_part_number":"17839-81","weaver_part_number":"TCG451","redneck_part_number":"","textrail_part_number":"","tredit_part_number":""},"_links":{"self":[{"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/product\/10113","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/comments?post=10113"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/media\/10121"}],"wp:attachment":[{"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/media?parent=10113"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/product_brand?post=10113"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/product_cat?post=10113"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/brechbilltrailers.com\/parts\/wp-json\/wp\/v2\/product_tag?post=10113"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}