{"product_id":"tgkjmad-trailer-bearing-kit-7000-lb-tandem-axle-25580-14125a-bearings-double-lip-seals","title":"Tgkjmad Trailer Bearing Kit 7000 lb Tandem Axle — 25580 \u0026 14125A Bearings, Double‑Lip Seals","description":"\u003cp\u003e\u003cstrong\u003eTgkjmad Trailer Bearing Kit 7000 lb is a complete tandem-axle hub service kit that replaces inner 25580 and outer 14125A bearings, seals, races and hardware needed to restore reliable wheel rotation on 6,000–7,000 lb trailers.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your boat trailer, utility trailer, or RV uses 8-lug hubs on 1-3\/4\" x 1-1\/4\" #42 spindles, this kit supplies the matched bearings, races, grease seals, spindle nuts, cotter pins, washers, dust caps and rubber plugs for a full hub repack and reassembly. Components are made from precision alloy steel and include double-lip NBR\/steel grease seals to help retain lubricant under towing loads and resist road contamination. The kit is compatible with many common axle brands and configurations such as Dexter, AL-KO, Quality and both EZ-Lube and standard spindles; verify your bearing numbers (25580 inner, 14125A outer) before ordering.\u003c\/p\u003e\n\n\u003ch3\u003eHow do I know this kit fits my trailer's axle?\u003c\/h3\u003e\n\n\u003cp\u003eCheck the bearing numbers stamped on your existing inner and outer bearings or consult your axle\/hub manual. This kit is specifically sized for tandem axles with 8-lug hubs and #42 spindles (1-3\/4\" x 1-1\/4\").\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInner bearing: 25580 — included\u003c\/li\u003e\n  \u003cli\u003eOuter bearing: 14125A — included\u003c\/li\u003e\n  \u003cli\u003eSpindle size supported: 1-3\/4\" x 1-1\/4\" #42\u003c\/li\u003e\n  \u003cli\u003eHub lug pattern: 8-lug compatible\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components are included for a full hub rebuild?\u003c\/h3\u003e\n\n\u003cp\u003eThe Tgkjmad kit contains all parts commonly needed to repack a hub and reinstall it correctly: bearings, races, grease seals, dust caps, spindle nuts and small hardware. Having everything in one kit prevents delays from missing parts during service.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e25580 inner bearings and corresponding races\u003c\/li\u003e\n  \u003cli\u003e14125A outer bearings and corresponding races\u003c\/li\u003e\n  \u003cli\u003e10-10 (21333TB) and 10-36 (22333TB) double-lip grease seals\u003c\/li\u003e\n  \u003cli\u003eDust caps, spindle nuts, cotter pins, washers and rubber plugs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose these bearings and double-lip seals for towing?\u003c\/h3\u003e\n\n\u003cp\u003ePrecision alloy steel bearings deliver consistent rolling performance and load support under towing conditions, while properly sized double-lip NBR\/steel seals help retain grease and block water and debris. Together they extend service intervals compared with worn or mismatched components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eAlloy steel bearings for strength and fatigue resistance\u003c\/li\u003e\n  \u003cli\u003eDouble-lip seals reduce grease loss and contamination ingress\u003c\/li\u003e\n  \u003cli\u003eMatched races ensure correct seating and preload\u003c\/li\u003e\n  \u003cli\u003eComplete hardware simplifies proper torque and cotter-pin installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow should I maintain hubs after installing this kit?\u003c\/h3\u003e\n\n\u003cp\u003eAfter installing and correctly adjusting bearing preload and spindle nut torque, inspect wheel ends periodically and repack with high-quality wheel bearing grease according to towing hours and exposure. Replace seals if they show damage or leakage signs.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eRepack bearings with marine or high-temperature wheel bearing grease\u003c\/li\u003e\n  \u003cli\u003eInspect seals and dust caps after heavy water exposure\u003c\/li\u003e\n  \u003cli\u003eRetorque and check cotter pin security after initial break-in miles\u003c\/li\u003e\n  \u003cli\u003eFollow axle manufacturer service intervals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tgkjmad Trailer Bearing Kit 7000 lb is intended for DIYers, fleet technicians and trailer owners who need a complete hub service solution for tandem-axle trailers rated around 6,000–7,000 pounds. It's best for trailers using 8-lug hubs with #42 spindles and for anyone replacing both inner 25580 and outer 14125A bearings at once to restore safe, smooth towing performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit include inner and outer bearings?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the kit includes inner 25580 and outer 14125A bearings plus matching races and hardware.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this fit EZ-Lube style spindles?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — it's compatible with EZ-Lube and standard #42 spindles, provided you have 1-3\/4\" x 1-1\/4\" dimensions.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tgkjmad","offers":[{"title":"Default Title","offer_id":48080858906782,"sku":"B0CZRYR5PV","price":103.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/tgkjmad-front-packaging-kits.jpg?v=1785790849","url":"https:\/\/northtrailauto.ca\/products\/tgkjmad-trailer-bearing-kit-7000-lb-tandem-axle-25580-14125a-bearings-double-lip-seals","provider":"North Trail Auto","version":"1.0","type":"link"}