{"product_id":"4-sets-25580-14125a-boat-trailer-axles-bearing-kits-complete-tandem","title":"4 Sets 25580 14125A Boat Trailer Axles Bearing Kits - Complete Tandem","description":"\u003cp\u003eIn this review of the 4 Sets 25580 14125A boat trailer axle bearing kits, the bottom line is clear: this package is aimed at DIY trailer owners and small fleet operators who need a full, ready-to-install replacement for tandem axles rated 5200-7000 lb and using a D42 spindle. The kit stands out because it supplies four complete bearing assemblies plus removable dust caps, spindle nuts, rubber plugs and shims so you get spare parts and a straightforward installation path; that added completeness is the single biggest reason to consider it.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Designed for 1.25 in to 1.75 in tandem axles for 5200-7000 lb capacity, ensuring compatibility with D42 spindle setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplete kit:\u003c\/strong\u003e Each pack includes inner and outer bearings and races, grease seals, cotter pins, dust caps and spindle nuts so you get everything needed for four hubs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium materials:\u003c\/strong\u003e Bearings and races are manufactured from alloy steel for durability and predictable, low working noise in service.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak protection:\u003c\/strong\u003e The grease seals use a double lip design to reduce grease loss and keep contaminants out of the bearing cavity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtras included:\u003c\/strong\u003e Removable caps, rubber plugs, shims and washers are provided to simplify installation and leave spares on hand for future maintenance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThis kit is best for owners of boats, utility trailers or campers with tandem axle configurations in the 5200-7000 lb range who want a single purchase that covers all four hub assemblies. A DIY mechanic who prefers replacing all bearings and seals at once will appreciate receiving inner and outer bearings, races and hardware in one box.\u003c\/p\u003e\n\u003cp\u003eIt is less appropriate for someone who is unsure of spindle identification or dust cap sizing; a few users reported mixed fit for dust cap sizes, so installers who need an exact dust cap guarantee or who require a different spindle spec should verify measurements before ordering.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComprehensive kit contains inner and outer bearings, races, seals and hardware for four hubs, saving trips for parts.\u003c\/li\u003e\n\u003cli\u003eSeals with a double lip design provide improved leak resistance for extended service life.\u003c\/li\u003e\n\u003cli\u003eComponents are made from alloy steel and run with relatively low noise when installed correctly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSome buyers reported mixed results with dust cap fit, so cap dimensions should be checked against the trailer before installation.\u003c\/li\u003e\n\u003cli\u003eFitment is specific to D42 spindle tandems; it is not universal for other spindle types.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded inner bearing\u003c\/td\u003e\n\u003ctd\u003e25580 (I.D. 1.75 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded outer bearing\u003c\/td\u003e\n\u003ctd\u003e14125A (I.D. 1.25 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGrease seal model\u003c\/td\u003e\n\u003ctd\u003e22333TB with double lip design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKit quantity\u003c\/td\u003e\n\u003ctd\u003e4 sets for tandem axles (complete for four hubs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended axle rating\u003c\/td\u003e\n\u003ctd\u003e5200-7000 lb tandem axles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible spindle\u003c\/td\u003e\n\u003ctd\u003eD42 spindle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdditional hardware\u003c\/td\u003e\n\u003ctd\u003eCotter pins, dust caps, rubber plugs, spindle nuts, washers, shims\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThis is a practical, value-oriented bearing kit for owners of D42 tandem axles rated 5200-7000 lb who want to replace bearings, races and seals on all four hubs at once. The complete hardware and double lip seals make it a cost-effective way to restore trailer hubs, though buyers should verify dust cap dimensions prior to installation to avoid fit surprises.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill these fit my tandem 7000 lb axle?\u003c\/strong\u003e\u003cbr\u003eThey are specified for 5200-7000 lb tandem axles with a D42 spindle; confirm your spindle type and bearing sizes match before purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre the grease seals leak resistant?\u003c\/strong\u003e\u003cbr\u003eYes, the kit uses double lip grease seals designed to reduce leakage and keep contaminants out of the bearing area.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the kit include all installation hardware?\u003c\/strong\u003e\u003cbr\u003eYes, it includes bearings, races, seals, spindle nuts, cotter pins, dust caps, rubber plugs, washers and shims for four hubs.\u003c\/p\u003e","brand":"Racewill","offers":[{"title":"Default Title","offer_id":48239403630811,"sku":"B0CDL2945Y","price":65.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/710ZoK4OfDL._SL1500.jpg?v=1770917015","url":"https:\/\/gearmusthave.com\/products\/4-sets-25580-14125a-boat-trailer-axles-bearing-kits-complete-tandem","provider":"GearMustHave","version":"1.0","type":"link"}