{"product_id":"bow-roller-assembly-fits-multiple-trailer-brands-replaces-gluckmarine-markgoo-jfatxtt","title":"Bow Roller Assembly – Fits Multiple Trailer Brands (Replaces GluckMarine, MARKGOO, JFATXTT)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis versatile \u003cstrong\u003e7\" X 4\" Boat Trailer Roller Assembly with 1\/2 Inch Shaft Bow Stop\u003c\/strong\u003e is designed for boat trailers equipped with a 1\/2-inch mounting shaft. Made from durable, non-marking polyurethane, it provides gentle yet firm support for your boat's bow during loading and trailering. The construction ensures resistance to sunlight, chemicals, and water for a long service life.\u003c\/p\u003e\n\u003cp\u003eThis assembly serves as a direct replacement for GluckMarine 7\" X 4\", MARKGOO 7\" X 4\" Boat Trailer Roller, and JFATXTT 4\" Bow Roller.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFeatures a simple bolt-on installation for trailers with a 1\/2-inch shaft.\u003c\/li\u003e\n  \u003cli\u003eThe non-marking polyurethane surface prevents costly damage and scuffs to your boat's hull.\u003c\/li\u003e\n  \u003cli\u003eIncludes one bow roller, two end bells, and a bolt with washer for a complete setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGluckMarine\u003c\/td\u003e\n        \u003ctd\u003e7\" X 4\"\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMARKGOO\u003c\/td\u003e\n        \u003ctd\u003e7\" X 4\" Boat Trailer Roller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eJFATXTT\u003c\/td\u003e\n        \u003ctd\u003e4\" Bow Roller\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your trailer's specifications in the table below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eApplication\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e\u003cstrong\u003eMultiple Brands\u003c\/strong\u003e\u003c\/td\u003e\n        \u003ctd\u003eBoat trailers with 1\/2 inch mounting shafts\u003c\/td\u003e\n        \u003ctd\u003eProvides resilient support for boat's keel\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eBow Roller Assembly\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBolt-on (1\/2 inch shaft)\u003c\/dd\u003e\n  \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003ePolyurethane (PU)\u003c\/dd\u003e\n  \u003cdt\u003eColor\u003c\/dt\u003e\n\u003cdd\u003eBlue (also available in Black)\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e7\" L x 4\" W (177.8 mm x 101.6 mm)\u003c\/dd\u003e\n  \u003cdt\u003eCenter Hole Diameter\u003c\/dt\u003e\n\u003cdd\u003e17 mm (0.67 in)\u003c\/dd\u003e\n  \u003cdt\u003eShaft Size\u003c\/dt\u003e\n\u003cdd\u003e1\/2 inch (12.7 mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.94 kg (2.07 lb)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eNon-marking surface prevents boat hull damage\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Bow Roller (7\" x 4\")\u003c\/li\u003e\n  \u003cli\u003e2 x End Bells\u003c\/li\u003e\n  \u003cli\u003e1 x Bolt with Washer\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eSecurely chock the trailer wheels and ensure the boat is properly supported to prevent movement.\u003c\/li\u003e\n  \u003cli\u003eLoosen and remove the nut from the existing bow roller bolt, then slide the bolt out of the bracket.\u003c\/li\u003e\n  \u003cli\u003eRemove the old roller and end bells. Clean any dirt or corrosion from the mounting bracket.\u003c\/li\u003e\n  \u003cli\u003ePosition the new end bells on each side of the new bow roller.\u003c\/li\u003e\n  \u003cli\u003eAlign the roller assembly with the mounting holes on the bracket and insert the new 1\/2-inch bolt.\u003c\/li\u003e\n  \u003cli\u003eSecure the assembly by tightening the washer and nut. Do not overtighten; the roller should spin freely with minimal side-to-side play.\u003c\/li\u003e\n  \u003cli\u003eDouble-check the alignment with your boat's bow and make adjustments if necessary.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this roller will fit my trailer?\u003c\/summary\u003e\n  \u003cp\u003eThis bow roller is designed for trailer brackets that use a 1\/2-inch (12.7 mm) diameter mounting shaft. Measure your current roller's shaft or bracket hole to confirm compatibility before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the advantage of a polyurethane roller?\u003c\/summary\u003e\n  \u003cp\u003ePolyurethane (PU) material is highly durable, non-marking, and resistant to damage from UV radiation, chemicals, and water. It protects your boat's hull from scuffs and scratches that harder materials like rubber or PVC can cause.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs that my bow roller needs to be replaced?\u003c\/summary\u003e\n  \u003cp\u003eInspect your bow roller for deep cracks, flat spots, or excessive wear. If the roller is seized and does not spin freely when launching or retrieving your boat, it should be replaced to prevent hull damage and ensure smooth operation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a replacement for the GluckMarine 7\" roller?\u003c\/summary\u003e\n  \u003cp\u003eYes, this is a direct, aftermarket equivalent for the GluckMarine 7\" X 4\" Boat Trailer Roller, as well as models from MARKGOO and JFATXTT. It offers comparable performance and dimensions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717902864699,"sku":"19BT015B","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/19BT015B.png?v=1762937937","url":"https:\/\/seasierra.com\/products\/bow-roller-assembly-fits-multiple-trailer-brands-replaces-gluckmarine-markgoo-jfatxtt","provider":"SeaSierra","version":"1.0","type":"link"}