{"product_id":"h1000-5-lug-hub-bearing-seal-kit-300-015907","title":"H1000 5-Lug Hub Bearing \u0026 Seal Kit | 300-015907","description":"\u003ch2\u003eEZ Loader H1000 5-Lug Hub Bearing \u0026amp; Seal Kit – 300-015907\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eEZ Loader H1000 wheel hub bearing and seal kit\u003c\/strong\u003e, part number 300-015907, is designed for compatible H1000 5-lug boat trailer hub assemblies with tapered axle spindles. This replacement bearing and seal kit supports routine wheel hub maintenance, bearing service, and replacement of worn bearing and sealing components.\u003c\/p\u003e\n\u003cp\u003eThe specified bearing inside diameters are \u003cstrong\u003e1-1\/16\" and 1-3\/8\"\u003c\/strong\u003e, corresponding to the different bearing journal sizes found on the applicable tapered spindle arrangement. Confirm the original bearing numbers, bearing dimensions, hub model, and seal specifications before ordering.\u003c\/p\u003e\n\u003ch3\u003eWhat Does a Boat Trailer Hub Bearing \u0026amp; Seal Kit Do?\u003c\/h3\u003e\n\u003cp\u003eA boat trailer wheel hub assembly rotates around a stationary axle spindle. The wheel bearings support this rotation while carrying the forces transmitted through the trailer wheel and hub. Properly installed, lubricated, and adjusted bearings help the trailer wheels turn smoothly and reliably.\u003c\/p\u003e\n\u003cp\u003eThe hub seal helps retain bearing lubricant inside the hub and limit the entry of water, dirt, and other contaminants. This is particularly important on boat trailers, where repeated launching, retrieval, road spray, and wet operating conditions can expose hub components to moisture.\u003c\/p\u003e\n\u003cp\u003eReplacing worn bearings and a damaged seal during scheduled hub service helps maintain proper wheel rotation and reduces the risk of bearing overheating, hub damage, and unexpected trailer breakdowns.\u003c\/p\u003e\n\u003ch3\u003eWhy Are There Two Different Bearing Sizes?\u003c\/h3\u003e\n\u003cp\u003eThe compatible H1000 tapered spindle arrangement uses bearing positions with different nominal inside diameters:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-1\/16\" bearing ID:\u003c\/strong\u003e Smaller-diameter bearing position, typically toward the outer end of the tapered spindle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1-3\/8\" bearing ID:\u003c\/strong\u003e Larger-diameter bearing position, typically toward the inner shoulder of the tapered spindle.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThese different bearing sizes correspond to the spindle's bearing journals. The bearings must match the spindle dimensions and the hub's bearing races. A 5-lug wheel bolt pattern alone does not establish bearing or seal compatibility.\u003c\/p\u003e\n\u003ch3\u003eWhy Replace Wheel Bearings and Seals?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRestore smooth wheel rotation:\u003c\/strong\u003e Replace bearings showing roughness, wear, pitting, or other damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelp protect the hub assembly:\u003c\/strong\u003e Properly functioning bearings support the rotating wheel hub.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduce contamination:\u003c\/strong\u003e A correctly fitted hub seal helps retain grease and limit the entry of water and debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupport preventative maintenance:\u003c\/strong\u003e Bearing inspection and replacement are important for trailers exposed to repeated boat launching and road travel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAddress hub service needs:\u003c\/strong\u003e Suitable for compatible H1000 hub maintenance when the existing bearing and seal specifications match.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSigns Your Boat Trailer Hub May Need Bearing Service\u003c\/h3\u003e\n\u003cp\u003eInspect the wheel hub and bearings if you notice any of the following:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGrinding, rumbling, or unusual wheel bearing noise.\u003c\/li\u003e\n\u003cli\u003eRoughness when rotating the wheel or hub by hand.\u003c\/li\u003e\n\u003cli\u003eExcessive hub movement or abnormal wheel play.\u003c\/li\u003e\n\u003cli\u003eDiscolored, contaminated, or water-damaged bearing grease.\u003c\/li\u003e\n\u003cli\u003eVisible grease leakage around the rear hub seal.\u003c\/li\u003e\n\u003cli\u003eUnusual hub heating after towing, once brake-related heat has been ruled out.\u003c\/li\u003e\n\u003cli\u003ePitting, corrosion, scoring, or damage found during hub disassembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Note:\u003c\/strong\u003e Stop towing and inspect the assembly if you suspect a failed bearing, loose hub, or damaged spindle. A bearing kit alone cannot correct a worn spindle, damaged hub, or improperly fitted bearing race.\u003c\/p\u003e\n\u003ch3\u003eProduct Details\u003c\/h3\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; border: 1px solid #cbd5dc; margin: 12px 0 20px 0; font-size: 14px;\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth colspan=\"2\" style=\"background-color: #12344d; color: #ffffff; text-align: left; padding: 12px; border: 1px solid #cbd5dc; font-weight: bold;\"\u003eProduct Details\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; width: 38%; font-weight: bold;\"\u003eManufacturer\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eEZ Loader\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003ePart Number \/ MPN\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003e300-015907\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003ePart Type\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eWheel Hub Bearing \u0026amp; Seal Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eHub Model\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eH1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eHub Configuration\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003e5-Lug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eSpindle Type\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eTapered Spindle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eSmaller Bearing Inside Diameter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003e1-1\/16\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eLarger Bearing Inside Diameter\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003e1-3\/8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eMaterial\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eSteel Bearing Components \u0026amp; Sealing Material\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eApplication\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eCompatible EZ Loader H1000 Boat Trailer Wheel Hub Assemblies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eCondition\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eNew\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"background-color: #f8fbfc; border: 1px solid #cbd5dc; padding: 9px; font-weight: bold;\"\u003eFitment Verification\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eConfirm H1000 Hub, Bearing Numbers, Spindle Journals \u0026amp; Seal Dimensions\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eImportant Fitment Information\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDo not select a wheel bearing kit based on the number of wheel lugs alone.\u003c\/strong\u003e Different 5-lug trailer hubs can use different bearings, seals, races, and spindle configurations.\u003c\/p\u003e\n\u003cp\u003eBefore ordering EZ Loader part 300-015907, verify:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe existing hub is the applicable H1000 configuration.\u003c\/li\u003e\n\u003cli\u003eThe axle uses the compatible tapered spindle design.\u003c\/li\u003e\n\u003cli\u003eThe original bearing inside diameters are 1-1\/16\" and 1-3\/8\".\u003c\/li\u003e\n\u003cli\u003eThe bearing identification numbers and matching races are compatible.\u003c\/li\u003e\n\u003cli\u003eThe grease seal dimensions and spindle seal surface match the replacement components.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWhen the original bearing numbers are unreadable, accurate measurements of the spindle bearing journals, existing bearing races, and seal surfaces may help identify the correct components.\u003c\/p\u003e\n\u003ch3\u003eInstallation and Maintenance Recommendations\u003c\/h3\u003e\n\u003cp\u003eWheel bearing installation requires proper cleaning, inspection, lubrication, and adjustment. Follow the axle and bearing manufacturer's procedures for installing the bearings, races, seal, retaining hardware, and hub assembly.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInspect the spindle for scoring, corrosion, wear, or heat damage.\u003c\/li\u003e\n\u003cli\u003eInspect the hub's bearing race seats and replace damaged components as necessary.\u003c\/li\u003e\n\u003cli\u003eUse a suitable wheel bearing grease approved for the hub and operating conditions.\u003c\/li\u003e\n\u003cli\u003eProperly pack serviceable tapered roller bearings before installation.\u003c\/li\u003e\n\u003cli\u003eInstall the correct grease seal without damaging its sealing lip.\u003c\/li\u003e\n\u003cli\u003eAdjust the spindle retaining nut according to the axle manufacturer's procedure.\u003c\/li\u003e\n\u003cli\u003eSecure the spindle nut using the specified retaining hardware.\u003c\/li\u003e\n\u003cli\u003eVerify smooth hub rotation and correct endplay before returning the trailer to service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eImportant:\u003c\/strong\u003e The exact contents of this kit, including bearing races, grease seal dimensions, and any additional hardware, should be confirmed against the supplied product packaging or factory parts information before purchase. Do not assume the kit includes a complete hub, spindle nut, cotter key, dust cap, or grease unless those items are specifically listed.\u003c\/p\u003e\n\u003ch3\u003eIndependent EZ Loader Parts Dealer Notice\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eEZLoaderParts411\u003c\/strong\u003e is an EZ Loader OEM replacement parts supplier owned and operated by \u003cstrong\u003e411MarineCom, Inc. and the 411Marine family\u003c\/strong\u003e, serving customers since 1998 from Hardeeville, South Carolina.\u003c\/p\u003e\n\u003cp\u003e411MarineCom is a high-volume independent EZ Loader trailer dealer and direct-to-factory source for new EZ Loader marine boat trailers, OEM replacement parts, and fitment support.\u003c\/p\u003e\n\u003cp\u003eWe are a dealer resource, not the manufacturer. Our team helps previous trailer customers and new customers identify the correct EZ Loader parts using trailer VIN details, photos, measurements, real trailer comparisons, hands-on parts experience, publicly available resources, our websites, and direct customer conversations whenever possible.\u003c\/p\u003e","brand":"EZ Loader","offers":[{"title":"Default Title","offer_id":53051727774061,"sku":"300-015907","price":27.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3761\/6493\/files\/Screenshot2026-02-26135752.png?v=1772132484","url":"https:\/\/ezloaderparts411.com\/products\/h1000-5-lug-hub-bearing-seal-kit-300-015907","provider":"EZLoaderParts411.com","version":"1.0","type":"link"}