{"title":"Trailer Hub Parts","description":"\u003cp data-start=\"409\" data-end=\"453\"\u003e\u003cstrong data-start=\"409\" data-end=\"453\"\u003eTrailer Hub Parts for EZ Loader Trailers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-start=\"455\" data-end=\"636\"\u003eTrailer hub parts keep your wheels turning safely and smoothly. Components like bearings, seals, caps, and hardware are critical to proper hub performance and long-term reliability.\u003c\/p\u003e\n\u003cp data-start=\"638\" data-end=\"841\"\u003eWhether you're rebuilding a hub or replacing worn components, choosing the correct parts is essential. Fitment depends on your axle, spindle size, and hub configuration—not all parts are interchangeable.\u003c\/p\u003e\n\u003cp data-start=\"843\" data-end=\"1023\"\u003eAt EZLoaderParts411.com, we help match hub parts based on real trailer setups—not guesswork. If you're unsure what fits your trailer, call us first and we’ll help you get it right.\u003c\/p\u003e","products":[{"product_id":"ez-loader-axle-spindle-tongued-washer-290-010827","title":"EZ Loader Tongued Spindle Washer (Keyed) 290-010827","description":"\u003c!-- ABOVE THE FOLD --\u003e\n\u003cp\u003e\u003cstrong\u003eOEM EZ Loader tongued (keyed) spindle washer designed for trailer axles with keyed spindle shafts—used to maintain alignment, prevent rotation, and support proper hub assembly on heavier-duty axle systems.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThis washer features a built-in tongue that fits into the spindle keyway, locking it in place and preventing rotation under load.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTongued washer for keyed spindle applications\u003c\/li\u003e\n\u003cli\u003ePrevents rotation under torque\u003c\/li\u003e\n\u003cli\u003eMaintains alignment in hub assembly\u003c\/li\u003e\n\u003cli\u003eDesigned for 5200–7000 lb axle systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e👉 Not sure if your spindle is keyed? Call us—we’ll help you match it correctly.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\u003c!-- FITMENT WARNING BOX --\u003e\n\u003cdiv style=\"border: 1px solid #d9534f; background: #fff5f5; padding: 14px; margin: 18px 0;\"\u003e\n\u003cp style=\"margin: 0;\"\u003e\u003cstrong\u003e⚠️ Important Fitment Note:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003e\u003cstrong\u003eDesigned for keyed (tongue slot) spindle shafts only.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin: 6px 0 0 0;\"\u003eThis washer will \u003cstrong\u003eNOT work on D-flat or round spindles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c!-- DETAILS --\u003e\n\u003cp\u003e\u003cstrong\u003ePart Name:\u003c\/strong\u003e Tongued Spindle Washer (Keyed)\u003cbr\u003e\u003cstrong\u003ePart Number:\u003c\/strong\u003e 290-010827\u003c\/p\u003e\n\u003ch3\u003eFitment Clarification\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e👉 Not all spindle washers are the same.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ethis washer is designed specifically for keyed spindle shafts\u003c\/li\u003e\n\u003cli\u003emultiple washer types exist (tongued, D-shaped, round)\u003c\/li\u003e\n\u003cli\u003edimensions and spindle interface must match exactly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUsing the incorrect washer type can result in improper seating, rotation, or premature wear within the hub assembly.\u003c\/p\u003e\n\u003ch3\u003eWhat Makes This Washer Different\u003c\/h3\u003e\n\u003cp\u003eThis is not a standard round washer.\u003c\/p\u003e\n\u003cp\u003eThe integrated tongue fits into the spindle keyway to:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003elock the washer in place\u003c\/li\u003e\n\u003cli\u003eprevent rotation under torque\u003c\/li\u003e\n\u003cli\u003emaintain proper alignment of hub hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eFunction \u0026amp; Purpose\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eprevents washer rotation under load\u003c\/li\u003e\n\u003cli\u003emaintains correct positioning of spindle hardware\u003c\/li\u003e\n\u003cli\u003esupports proper bearing preload and alignment\u003c\/li\u003e\n\u003cli\u003eacts as a mechanical locking interface within the hub assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTypical Applications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e5200 lb axle systems\u003c\/li\u003e\n\u003cli\u003e6000 lb axle systems\u003c\/li\u003e\n\u003cli\u003e7000 lb axle systems\u003c\/li\u003e\n\u003cli\u003eheavy-duty trailer hub assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eInner Diameter: 0.813\"\u003c\/li\u003e\n\u003cli\u003eOuter Diameter: 1.656\"\u003c\/li\u003e\n\u003cli\u003eThickness: 0.203\"\u003c\/li\u003e\n\u003cli\u003eStyle: Tongued (keyed)\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy This Part Matters\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e👉 Designed to lock into the spindle keyway and prevent rotation while maintaining proper alignment.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eUsing a standard washer or incorrect type can lead to improper seating, hardware movement, and premature wear in the hub assembly.\u003c\/p\u003e\n\u003cp\u003eDesigned for keyed spindle shafts—will not fit D-flat or round spindle applications.\u003c\/p\u003e\n\u003ch3\u003eReal-World Insight\u003c\/h3\u003e\n\u003cp\u003eAt 411-Trailers Group, we work with trailer axle systems regularly. One of the most common issues we see is incorrect spindle hardware being used in place of application-specific components like this.\u003c\/p\u003e\n\u003cp\u003eMatching the correct washer to the spindle design—keyed, D-flat, or round—is critical for proper assembly and long-term reliability.\u003c\/p\u003e","brand":"EZLoaderParts411.com","offers":[{"title":"Default Title","offer_id":52897099678061,"sku":"290-010827","price":4.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3761\/6493\/files\/Photoroom-20241219_115439.png?v=1767893671"},{"product_id":"d-shaped-spindle-washer-trailer-axle-290-034114","title":"EZ Loader D-Shaped Spindle Washer (D-Flat) 290-034114","description":"\u003c!-- ABOVE THE FOLD --\u003e\n\u003cp\u003e\u003cstrong\u003eD-shaped spindle washer designed for trailer axles with a flat (D-shaped) spindle surface—used to maintain alignment, prevent rotation, and support proper hub assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUnlike standard round washers, this washer locks onto the spindle flat to prevent spinning under load and ensure proper hardware positioning.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eD-shaped washer for flat spindle surfaces\u003c\/li\u003e\n\u003cli\u003ePrevents rotation under torque\u003c\/li\u003e\n\u003cli\u003eMaintains alignment in hub assembly\u003c\/li\u003e\n\u003cli\u003eCritical for proper spindle hardware fitment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003e👉 Not sure if this is the correct size? Call us—we’ll help you match it properly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003chr\u003e\n\n\u003c!-- FITMENT WARNING BOX --\u003e\n\u003cdiv style=\"border:1px solid #d9534f; background:#fff5f5; padding:14px; margin:18px 0;\"\u003e\n  \u003cp style=\"margin:0;\"\u003e\u003cstrong\u003e⚠️ Important Fitment Note:\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp style=\"margin:6px 0 0 0;\"\u003e\u003cstrong\u003eDesigned for D-flat spindle shafts only.\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp style=\"margin:6px 0 0 0;\"\u003eThis washer will \u003cstrong\u003eNOT work on round or keyed spindles.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- DETAILS --\u003e\n\n\u003cp\u003e\u003cstrong\u003ePart Name:\u003c\/strong\u003e D-Shaped Spindle Washer (Flat)\u003cbr\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 290-034114\u003c\/p\u003e\n\n\u003ch3\u003eFitment Clarification\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e👉 Not all D-shaped spindle washers are the same.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003emultiple sizes exist\u003c\/li\u003e\n\u003cli\u003edimensions and spindle fitment vary\u003c\/li\u003e\n\u003cli\u003ethis part must match your spindle size and flat profile\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eUsing the incorrect size can result in improper seating, rotation, or premature wear within the hub assembly.\u003c\/p\u003e\n\n\u003ch3\u003eWhat Makes This Washer Different\u003c\/h3\u003e\n\u003cp\u003eThis is not a standard washer.\u003c\/p\u003e\n\n\u003cp\u003eThe flat edge aligns with the spindle flat to:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003eprevent rotation\u003c\/li\u003e\n\u003cli\u003emaintain alignment\u003c\/li\u003e\n\u003cli\u003eensure proper hardware seating\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFunction \u0026amp; Purpose\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eprevents washer rotation under torque\u003c\/li\u003e\n\u003cli\u003emaintains correct positioning of spindle hardware\u003c\/li\u003e\n\u003cli\u003esupports proper preload and alignment\u003c\/li\u003e\n\u003cli\u003eacts as a mechanical locking interface\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eCross-Compatibility\u003c\/h3\u003e\n\u003cp\u003eThis washer design is not exclusive to EZ Loader.\u003c\/p\u003e\n\n\u003cp\u003eUsed across multiple trailer manufacturers with similar D-flat spindle designs.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFitment must always be verified by spindle shape and dimensions—not brand alone.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eStyle: D-shaped (flat side)\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy This Part Matters\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e👉 Prevents rotation and maintains proper alignment within the hub assembly.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eUsing a standard round washer or incorrect size can lead to improper seating, hardware movement, and premature wear.\u003c\/p\u003e\n\n\u003ch3\u003eReal-World Insight\u003c\/h3\u003e\n\u003cp\u003eAt 411-Trailers Group, we work with trailer axle systems regularly. One of the most common issues we see is incorrect spindle hardware being substituted for application-specific components like this washer.\u003c\/p\u003e\n\n\u003cp\u003eMatching the correct washer to the spindle design is critical for proper assembly and long-term reliability.\u003c\/p\u003e","brand":"EZLoaderParts411.com","offers":[{"title":"Default Title","offer_id":52897105609069,"sku":"290-034114","price":2.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3761\/6493\/files\/290-034114DWasher.jpg?v=1767893939"},{"product_id":"ez-loader-knott-sealed-bearing-hub-kit-2700-pwc-jon-small-boat-trailer-250-033291","title":"EZ Loader Knott Sealed Bearing Hub Kit 2700# PWC Jon Small Boat Trailer  250-033291","description":"\u003cp class=\"MsoNormal\"\u003e\u003cstrong\u003ePart Name: \u003c\/strong\u003eKnott Sealed Bearing Hub Kit 2700#\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003ePart Number: \u003c\/span\u003e\u003c\/b\u003e250-033291\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e\u003cstrong\u003eDimensions:\u003c\/strong\u003e \u003c\/span\u003eDiameter 6-1\/2\" x  3-1\/2\"\u003cstrong\u003eH\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eMaterial:\u003c\/span\u003e \u003c\/b\u003eMarine Coated Steel\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eColor:\u003c\/span\u003e\u003c\/b\u003e Gray\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eFitment:\u003c\/span\u003e \u003c\/b\u003e\u003cspan\u003eFits AutoFlex-Knott Torsion Axle\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003eIncluded Components: \u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e(1) Pre -Assembled Sealed Hub\u003c\/li\u003e\n\u003cli\u003e(1) Dust Cap\u003c\/li\u003e\n\u003cli\u003e(1) O-Ring\u003c\/li\u003e\n\u003cli\u003e(1) Flange Nut\u003c\/li\u003e\n\u003cli\u003e(5) Lug Nuts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5 class=\"MsoNormal\"\u003e\u003cspan\u003eKey Features\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eOEM Replacement  \u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eProper Fit and Performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan\u003eComplete Knott Sealed Bearing Hub Kit \u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003eDesigned for Knott AutoFlex Torsion Axle\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003e2700lb Rated Hub\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003eWorks on 5 on 4.5\" Bolt Pattern Wheels\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003eFactory Sealed, Non-Serviceable\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003eEngineered for Reliability\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003eLow Maintenance\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003eSmooth Towing Performance\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003eSimplified Maintenance \u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-family: Arial, sans-serif;\"\u003e\u003cspan\u003e(eliminates need for periodic greasing)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp align=\"center\" class=\"MsoNormal\"\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp align=\"center\" class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp align=\"center\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan\u003eEasy to Install\u003c\/span\u003e\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp align=\"center\" class=\"MsoNormal\"\u003e\u003ci\u003eMounting Hardware\u003cspan\u003e \u003c\/span\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cb\u003eNOT\u003c\/b\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eIncluded\u003c\/i\u003e\u003c\/p\u003e","brand":"EZLoaderParts411.com","offers":[{"title":"Default Title","offer_id":53121877639533,"sku":"250-033291","price":175.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3761\/6493\/files\/EZLoader250-033291PWCKnottHubwholekit.jpg?v=1773772037"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3761\/6493\/collections\/EZ_Loader_5_Lug_Oil_Bath_Hub_Installed_on_Trailer_Axle_40d5f5bd-932a-41f2-847a-8239212c31a8.jpg?v=1774381888","url":"https:\/\/ezloaderparts411.com\/collections\/trailer-hub-parts.oembed","provider":"EZLoaderParts411.com","version":"1.0","type":"link"}