{"product_id":"boat-trailer-roller-shaft-fits-multiple-brands-models","title":"Boat Trailer Roller Shaft - Fits Multiple Brands \u0026 Models","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eBoat Trailer Roller Shaft\u003c\/strong\u003e is an essential component for your trailer, designed to support the boat's weight, absorb road shock, and protect the hull during loading and unloading. Available in both 304 Stainless Steel and Zinc Plated Steel, these shafts are built for durability in marine environments. They are compatible with most standard keel rollers and bow rollers.\u003c\/p\u003e\n\u003cp\u003eWhile these shafts are designed to fit a wide range of applications, direct OEM part number cross-references are not available; fitment should be confirmed by dimension.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls with a direct bolt-on design using the included pal nuts.\u003c\/li\u003e\n\u003cli\u003eChoose from 304 Stainless Steel for maximum corrosion resistance or Zinc Plated Steel for a durable, cost-effective option.\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple diameters (1\/2\" and 5\/8\") and various lengths to fit your specific setup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eCompatible Roller Types\u003c\/h2\u003e\n\u003cp\u003eThese shafts are compatible with a wide variety of common roller types. Check your roller's dimensions to ensure a proper fit.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Compatible Roller Types\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eRoller Type\u003c\/th\u003e\n        \u003cth\u003eDimension\u003c\/th\u003e\n        \u003cth\u003eMaterial\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\u003eBow Rollers\u003c\/td\u003e\n        \u003ctd\u003e3-4 inch\u003c\/td\u003e\n        \u003ctd\u003ePolyurethane\/Rubber\u003c\/td\u003e\n        \u003ctd\u003eIncluding Stoltz ULT-4 Ultimate Bow Roller\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eKeel Rollers\u003c\/td\u003e\n        \u003ctd\u003eVarious sizes\u003c\/td\u003e\n        \u003ctd\u003ePolyurethane\/Rubber\u003c\/td\u003e\n        \u003ctd\u003eStoltz and other brands\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eV-Stop Rollers\u003c\/td\u003e\n        \u003ctd\u003e3-4 inch\u003c\/td\u003e\n        \u003ctd\u003eRubber\u003c\/td\u003e\n        \u003ctd\u003eFor bow of boat\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\u003eBoat Trailer Roller Shaft\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect bolt-on with pal nuts\u003c\/dd\u003e\n  \u003cdt\u003eMaterial Options\u003c\/dt\u003e\n\u003cdd\u003e304 Stainless Steel or Zinc Plated Steel\u003c\/dd\u003e\n  \u003cdt\u003eDiameter Options\u003c\/dt\u003e\n\u003cdd\u003e1\/2 inch (12.7 mm) or 5\/8 inch (15.9 mm)\u003c\/dd\u003e\n  \u003cdt\u003eLength Options\u003c\/dt\u003e\n\u003cdd\u003eMultiple available: 4.25\", 5.25\", 6.25\", 9.25\", 11\", 13.5\", 14.25\", 15.125\", 19\"\u003c\/dd\u003e\n  \u003cdt\u003eFastener Type\u003c\/dt\u003e\n\u003cdd\u003ePal nuts (included with some models)\u003c\/dd\u003e\n  \u003cdt\u003eFunction\u003c\/dt\u003e\n\u003cdd\u003eSupports boat weight on trailer, absorbs road shock\u003c\/dd\u003e\n  \u003cdt\u003eCompatibility\u003c\/dt\u003e\n\u003cdd\u003eWorks with most keel rollers and bow rollers\u003c\/dd\u003e\n  \u003cdt\u003eCommon Applications\u003c\/dt\u003e\n\u003cdd\u003eBoat trailer keel rollers, bow stops, winch post rollers\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eAvailable Size Configurations\u003c\/h2\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Available Size Configurations\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eDiameter\u003c\/th\u003e\n        \u003cth\u003eLength\u003c\/th\u003e\n        \u003cth\u003eMaterial\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\u003e1\/2 inch (12.7 mm)\u003c\/td\u003e\n        \u003ctd\u003e4.25 inch (108 mm)\u003c\/td\u003e\n        \u003ctd\u003e304 Stainless Steel\u003c\/td\u003e\n        \u003ctd\u003eFor bow rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e1\/2 inch (12.7 mm)\u003c\/td\u003e\n        \u003ctd\u003e5.25 inch (133 mm)\u003c\/td\u003e\n        \u003ctd\u003eZinc Plated\u003c\/td\u003e\n        \u003ctd\u003eFor 4-inch rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e1\/2 inch (12.7 mm)\u003c\/td\u003e\n        \u003ctd\u003e6.25 inch (159 mm)\u003c\/td\u003e\n        \u003ctd\u003eZinc Plated\u003c\/td\u003e\n        \u003ctd\u003eFor keel rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e5\/8 inch (15.9 mm)\u003c\/td\u003e\n        \u003ctd\u003e6.25 inch (159 mm)\u003c\/td\u003e\n        \u003ctd\u003eZinc Plated\u003c\/td\u003e\n        \u003ctd\u003eFor keel rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e5\/8 inch (15.9 mm)\u003c\/td\u003e\n        \u003ctd\u003e9.25 inch (235 mm)\u003c\/td\u003e\n        \u003ctd\u003eZinc Plated\u003c\/td\u003e\n        \u003ctd\u003eFor keel rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e5\/8 inch (15.9 mm)\u003c\/td\u003e\n        \u003ctd\u003e11 inch (279 mm)\u003c\/td\u003e\n        \u003ctd\u003eZinc Plated\u003c\/td\u003e\n        \u003ctd\u003eFor keel rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003e5\/8 inch (15.9 mm)\u003c\/td\u003e\n        \u003ctd\u003e13.5 inch (343 mm)\u003c\/td\u003e\n        \u003ctd\u003eZinc Plated\/Stainless Steel\u003c\/td\u003e\n        \u003ctd\u003eFor keel rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n\t  \u003ctr\u003e\n        \u003ctd\u003e5\/8 inch (15.9 mm)\u003c\/td\u003e\n        \u003ctd\u003e19 inch (483 mm)\u003c\/td\u003e\n        \u003ctd\u003eZinc Plated\u003c\/td\u003e\n        \u003ctd\u003eFor keel rollers\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Roller Shaft (specific size as ordered)\u003c\/li\u003e\n  \u003cli\u003e2-4 x Pal Nuts (included with some models)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eSafely secure the boat and trailer on a level surface.\u003c\/li\u003e\n  \u003cli\u003eRemove the old roller shaft, which may involve removing cotter pins or pal nuts.\u003c\/li\u003e\n  \u003cli\u003eInspect the roller and brackets for wear or damage and replace if necessary.\u003c\/li\u003e\n  \u003cli\u003eAlign the new roller within its bracket.\u003c\/li\u003e\n  \u003cli\u003eInsert the new roller shaft through the bracket and the roller.\u003c\/li\u003e\n  \u003cli\u003eSecure the new shaft in place using the provided pal nuts. A socket or mallet may be used to tap them on securely.\u003c\/li\u003e\n  \u003cli\u003eEnsure the roller spins freely on the shaft without excessive side-to-side movement.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I choose between Stainless Steel and Zinc Plated?\u003c\/summary\u003e\n  \u003cp\u003eChoose 304 Stainless Steel for maximum corrosion protection, especially for saltwater use. Zinc Plated steel offers good rust resistance for freshwater applications and is a more economical choice.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know which shaft length and diameter to order?\u003c\/summary\u003e\n  \u003cp\u003eMeasure your existing shaft's diameter and overall length. If replacing the roller as well, measure the inner width of the mounting bracket and the inner diameter of the roller to determine the correct shaft size.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhen should I replace my roller shafts?\u003c\/summary\u003e\n  \u003cp\u003eInspect your shafts regularly for signs of bending, heavy corrosion, or significant wear. Replace them immediately if any damage is found to prevent trailer failure and potential damage to your boat's hull.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are pal nuts and how do they work?\u003c\/summary\u003e\n  \u003cp\u003ePal nuts, or push nuts, are single-thread locknuts that grip the shaft to hold it in place. They are typically installed by tapping them on with a hammer or a deep socket until they are snug against the bracket.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I reuse my old pal nuts?\u003c\/summary\u003e\n  \u003cp\u003eIt is not recommended. Pal nuts are designed for a single use, as they deform to grip the shaft. For a secure installation, always use new pal nuts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eThe shaft seems too short for the bracket. Is this normal?\u003c\/summary\u003e\n  \u003cp\u003eThe shaft must be long enough to pass through both sides of the mounting bracket with enough space to attach the pal nuts securely. It should not be so long that it allows excessive side-to-side roller movement. Always confirm your measurements before ordering.\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":50717886382395,"sku":"19BT017","price":17.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/3_inches_Boat_Trailer_Bow_Stop_Roller_by_1-2_inches_Shaft_-_JLM_MARINE-8288004.jpg?v=1762937364","url":"https:\/\/seasierra.com\/products\/boat-trailer-roller-shaft-fits-multiple-brands-models","provider":"SeaSierra","version":"1.0","type":"link"}