{"product_id":"bow-roller-fits-multiple-trailer-brands-replaces-gl-ckmarine-markgoo-jfatxtt","title":"Bow Roller – Fits Multiple Trailer Brands (Replaces GlückMarine, MARKGOO, JFATXTT)","description":"\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\u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis universal \u003cstrong\u003e7\" X 4\" Boat Trailer Roller Assembly with 1\/2 Inch Shaft Bow Stop\u003c\/strong\u003e provides non-marking support for your boat's bow during loading and trailering. Designed for a universal fit, it is compatible with boat trailers equipped with a 1\/2-inch mounting shaft, ensuring broad applicability.\u003c\/p\u003e\n    \u003cp\u003eIt serves as a direct interchange for several models, including the GlückMarine 7\" X 4\", MARKGOO 7\" X 4\" Boat Trailer Roller, and JFATXTT 4\" Bow Roller.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003eInstalls easily via a standard bolt-on 1\/2-inch shaft.\u003c\/li\u003e\n        \u003cli\u003eConstructed from durable, non-marking polyurethane to prevent hull damage.\u003c\/li\u003e\n        \u003cli\u003eIncludes one complete bow roller assembly for straightforward replacement.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\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\u003eGlückMarine\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\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n    \u003cp\u003eConfirm your engine model\/year 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\u003c\/section\u003e\n\u003csection\u003e\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\/Light Blue)\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\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eBow Stop\u003c\/dd\u003e\n        \u003cdt\u003eThread Size\u003c\/dt\u003e\n\u003cdd\u003e1\/2 inch\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\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e1 x Boat Trailer Roller Assembly (7\" X 4\") with 1\/2 Inch Shaft\u003c\/li\u003e\n    \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n    \u003col\u003e\n        \u003cli\u003eSafely secure the boat and trailer on a level surface before beginning work.\u003c\/li\u003e\n        \u003cli\u003eLoosen and remove the nuts and bolts securing the old bow roller assembly.\u003c\/li\u003e\n        \u003cli\u003eSlide the old roller off the shaft. Retain washers or other hardware for reuse if they are in good condition.\u003c\/li\u003e\n        \u003cli\u003eClean the mounting bracket and shaft to remove any debris or rust.\u003c\/li\u003e\n        \u003cli\u003eSlide the new polyurethane roller onto the 1\/2-inch shaft.\u003c\/li\u003e\n        \u003cli\u003eReinstall the assembly into the bow stop bracket.\u003c\/li\u003e\n        \u003cli\u003eTighten the nuts securely, ensuring the roller can still spin freely but is held firmly in its housing.\u003c\/li\u003e\n        \u003cli\u003eCheck the alignment with your boat's bow to ensure proper contact and support during loading.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n    \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow do I confirm this roller will fit my trailer?\u003c\/summary\u003e\n        \u003cp\u003eThis is a universal bow roller designed for trailers with a 1\/2-inch diameter mounting shaft. The most reliable way to ensure fitment is to measure your existing shaft to confirm it is 1\/2 inch.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat is the advantage of a polyurethane roller over a standard rubber one?\u003c\/summary\u003e\n        \u003cp\u003ePolyurethane (PU) is a non-marking material, which prevents black streaks, scuffs, and other marks on your boat's hull. It is also exceptionally durable and resistant to damage from sun, salt, and water compared to traditional rubber.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eThe center hole is 17 mm, but the shaft size is 1\/2 inch (12.7 mm). Is this size difference correct?\u003c\/summary\u003e\n        \u003cp\u003eYes, this is intentional. The slightly larger center hole diameter allows the roller to spin freely on the shaft without binding, which is essential for smooth and frictionless boat loading and unloading.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhen is it time to replace my bow roller?\u003c\/summary\u003e\n        \u003cp\u003eInspect your bow roller regularly for signs of deep cracks, flat spots, or significant material degradation. You should replace it if it no longer spins freely or fails to provide adequate, stable support for your boat's bow.\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\u003c\/section\u003e\n\u003csection\u003e\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\u003c\/section\u003e\n\u003csection\u003e\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":50717902340411,"sku":"4Inch-Amber-V","price":35.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/4Inch-Amber-V.png?v=1762937912","url":"https:\/\/seasierra.com\/products\/bow-roller-fits-multiple-trailer-brands-replaces-gl-ckmarine-markgoo-jfatxtt","provider":"SeaSierra","version":"1.0","type":"link"}