{"product_id":"una-212-trailer-leaf-spring-1750lb-25-1-4","title":"Trailer Leaf Spring 4-Leaf 1750 lb – 25-1\/4\" Double Eye | Fits 3,500 lb Axles | SW4B UNA-212","description":"\u003cp\u003e🔩 \u003cstrong\u003e25-1\/4\" Double Eye Trailer Leaf Spring – 4 Leaf – 1,750 lb Capacity | Fits 3,500 lb Axles | SW4B \/ UNA-212\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe most widely used trailer leaf spring in North America. This 4-leaf double-eye spring is the factory standard on virtually every 3,500 lb utility, boat, and cargo trailer axle. Sold individually — order two per single axle, four for tandem.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCapacity:\u003c\/strong\u003e 1,750 lbs per spring (fits 3,500 lb axles)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Eye-to-Eye (free):\u003c\/strong\u003e 25-1\/4\" (25.25\")\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFree Arch Height:\u003c\/strong\u003e 3\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaf Width:\u003c\/strong\u003e 1-3\/4\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBushing I.D.:\u003c\/strong\u003e 9\/16\" — nylon bushings pre-installed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Leaves:\u003c\/strong\u003e 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpring Type:\u003c\/strong\u003e Double Eye\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e🔁 \u003cstrong\u003eCross-Reference Part Numbers\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eSW4B | DE-SW4B | UNA-212 | UNA-108 | UNA-157 | DE-7242 | USW4B | PR4B | PR-4B | 072-042-00 | 72-42 | 9150014 | 93184 | 93168 | 124903 | LIB-401-DE | 20015 | 4342-17\u003c\/p\u003e\n\u003cp\u003e✅ \u003cstrong\u003eFits These Trailer Types\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eUtility trailers with 3,500 lb axles\u003c\/li\u003e\n\u003cli\u003eBoat trailers\u003c\/li\u003e\n\u003cli\u003eCargo\/enclosed trailers\u003c\/li\u003e\n\u003cli\u003eLandscape \u0026amp; dump trailers\u003c\/li\u003e\n\u003cli\u003eHorse \u0026amp; livestock trailers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e⚠️ Sold individually. Replace springs in pairs. Confirm axle rating before ordering.\u003c\/p\u003e\u003cp\u003e📞 \u003cstrong\u003eNeed help choosing the right spring? Call or text AAA Trailer: \u003ca href=\"tel:5172251991\"\u003e517-225-1991\u003c\/a\u003e\u003c\/strong\u003e | Howell, MI | \u003ca href=\"https:\/\/aaatrailer.com\"\u003eAAATrailer.com\u003c\/a\u003e — Same-day shipping available on in-stock orders.\u003c\/p\u003e","brand":"Detroit Hitch","offers":[{"title":"Default Title","offer_id":50581076705589,"sku":"850-0212","price":57.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0733\/9144\/0181\/files\/una-212-leaf-spring-25.jpg?v=1777728441","url":"https:\/\/aaatrailer.com\/products\/una-212-trailer-leaf-spring-1750lb-25-1-4","provider":"AAA Trailer","version":"1.0","type":"link"}