{"product_id":"5-lug-oil-hub-cap-o-ring-250-034392","title":"5-Lug Oil Bath Hub Cap O-Ring | 250-034392","description":"\u003ch2\u003eEZ Loader 5-Lug Oil Bath Hub Cap O-Ring – 250-034392\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003eEZ Loader 5-lug oil bath hub cap O-ring, part number 250-034392\u003c\/strong\u003e, is a replacement sealing component for compatible EZ Loader boat trailer oil-lubricated wheel hub caps. This O-ring helps seal the connection between the oil hub cap and its mating hub surface, reducing the risk of lubricant leakage and outside contamination.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant fitment distinction:\u003c\/strong\u003e This O-ring is designed for the compatible \u003cstrong\u003e5-lug oil bath hub cap\u003c\/strong\u003e and will\u003cstrong\u003e not fit the 6-lug hub cap\u003c\/strong\u003e. Confirm the hub cap configuration and original seal specifications before ordering.\u003c\/p\u003e\n\u003ch3\u003eWhat Does an Oil Bath Hub Cap O-Ring Do?\u003c\/h3\u003e\n\u003cp\u003eOil-bath trailer hubs use liquid lubricant to lubricate the wheel bearings. The hub cap closes the outer end of the hub assembly, while the O-ring helps seal the interface between the cap and its mating surface.\u003c\/p\u003e\n\u003cp\u003eWhen properly fitted and installed, this O-ring helps:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetain hub oil:\u003c\/strong\u003e Reduce lubricant leakage at the hub cap sealing joint.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLimit moisture intrusion:\u003c\/strong\u003e Help protect the oil-lubricated hub assembly from outside water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduce contamination:\u003c\/strong\u003e Limit the entry of dirt, road grime, and other debris.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintain hub sealing performance:\u003c\/strong\u003e Provide a replaceable sealing component during hub cap service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe O-ring does not lubricate the bearings by itself. Its function is to help maintain the seal of the oil-bath hub cap assembly.\u003c\/p\u003e\n\u003ch3\u003eWhy Is the Correct O-Ring Important?\u003c\/h3\u003e\n\u003cp\u003eBoat trailer wheel hubs are exposed to road spray, water, vibration, and changing temperatures. A missing, worn, damaged, or incorrectly sized O-ring may allow hub oil to escape or moisture to enter the assembly.\u003c\/p\u003e\n\u003cp\u003eLubricant loss or contamination can contribute to premature bearing wear, corrosion, overheating, and potentially serious hub damage. Installing the correct replacement O-ring is an important part of maintaining an oil-lubricated boat trailer hub.\u003c\/p\u003e\n\u003ch3\u003eWhen Should the O-Ring Be Replaced?\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWhen the existing O-ring is cracked, cut, hardened, flattened, or otherwise damaged.\u003c\/li\u003e\n\u003cli\u003eWhen oil seepage is visible around the hub cap sealing surface.\u003c\/li\u003e\n\u003cli\u003eWhen the original O-ring is stretched, distorted, or no longer fits its intended groove.\u003c\/li\u003e\n\u003cli\u003eWhen the hub cap has been removed and the existing seal is no longer suitable for reuse.\u003c\/li\u003e\n\u003cli\u003eDuring preventative maintenance when inspection reveals seal deterioration.\u003c\/li\u003e\n\u003c\/ul\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 \/ Brand\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;\"\u003e250-034392\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;\"\u003eOil Bath Hub Cap O-Ring\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;\"\u003eLubrication System\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eOil Bath\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;\"\u003ePrimary Function\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eHelps seal the oil hub cap and retain lubricant\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;\"\u003eCompatibility\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003eCompatible EZ Loader 5-Lug Oil Bath Hub Caps\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;\"\u003eNot Compatible With\u003c\/td\u003e\n\u003ctd style=\"border: 1px solid #cbd5dc; padding: 9px;\"\u003e6-Lug Oil Bath Hub Caps\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 Hub Cap Design, Lug Configuration \u0026amp; Original O-Ring Specifications\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eInstallation and Maintenance Recommendations\u003c\/h3\u003e\n\u003cp\u003eBefore installing a replacement O-ring, inspect the hub cap, sealing groove, and mating surface for damage, corrosion, debris, or residue. A replacement O-ring cannot correct leakage caused by a cracked hub cap or damaged sealing surface.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConfirm the hub cap is the correct 5-lug oil-bath design.\u003c\/li\u003e\n\u003cli\u003eCarefully remove the existing O-ring without scratching the sealing surfaces.\u003c\/li\u003e\n\u003cli\u003eClean the O-ring groove and mating surfaces according to the hub manufacturer's recommendations.\u003c\/li\u003e\n\u003cli\u003eInspect the replacement O-ring for cuts or damage.\u003c\/li\u003e\n\u003cli\u003eInstall the O-ring evenly without twisting, pinching, or overstretching it.\u003c\/li\u003e\n\u003cli\u003eFollow the hub manufacturer's instructions for seal lubrication, hub cap installation, and tightening.\u003c\/li\u003e\n\u003cli\u003eVerify the correct oil level and use the lubricant specified for the hub assembly.\u003c\/li\u003e\n\u003cli\u003eInspect the cap for leakage after installation and during subsequent trailer checks.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSafety Notice:\u003c\/strong\u003e Do not tow with a known oil leak, inadequate lubricant level, or suspected bearing damage. Identify and correct the problem before returning the trailer to service.\u003c\/p\u003e\n\u003ch3\u003e5-Lug vs. 6-Lug Oil Bath Hub Caps\u003c\/h3\u003e\n\u003cp\u003eEZ Loader has used different oil-bath hub configurations, and the O-rings are not necessarily interchangeable even when the caps appear similar.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePart 250-034392 is specified for the compatible 5-lug oil bath hub cap and does not fit the 6-lug version.\u003c\/strong\u003e For the compatible 6-lug application, see EZ Loader O-ring part number \u003cstrong\u003e250-034393\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eIf you are unsure which O-ring is correct, compare the original hub cap, existing O-ring, and trailer identification information before ordering.\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":52897105281389,"sku":"250-034392","price":2.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3761\/6493\/files\/250-034392_5lug_oring_on_cap.jpg?v=1767893927","url":"https:\/\/ezloaderparts411.com\/products\/5-lug-oil-hub-cap-o-ring-250-034392","provider":"EZLoaderParts411.com","version":"1.0","type":"link"}