{"product_id":"3500-lb-axles-25-25-4-leaf-double-eye-trailer-springs-1-3-4-wide-hanger-kits","title":"3,500 lb Axles 25.25\" 4-Leaf Double Eye Trailer Springs 1-3\/4\" Wide Hanger Kits","description":"\u003ch3\u003eProduct Description:\u003c\/h3\u003e\n\u003cp\u003eBuilt to support heavy loads while smoothing out the rider, the Trailer Supplies 4-leaf double eye spring is a reliable suspension component engineered for 3,500 lb trailer axles. Its four stacked steel leaves flex to absorb road shock and reduce wear and tear on your trailer frame, helping maintain proper axle alignment and ensure a level, controlled ride even over rough surfaces. \u003c\/p\u003e\n\u003cp\u003eMeasuring 25-1\/4\" eye-to-eye with a 1-3\/4\" width, this leaf spring includes pre-installed 9\/16\" nylon bushings for quieter operation and easier mounting to your trailer's suspension system. The double eye design allows secure attachment to both the hanger and shackle hardware and works well for a variety of single-axle applications, from utility and camping trailers to cargo and equipment haulers. \u003c\/p\u003e\n\u003cp\u003eMultiple kit options are available as springs only, with U-bolt kits, or with complete hanger kits for full suspension replacement. This flexibility makes it easy to choose the right setup for your maintenance or upgrade needs,  whether you're replacing worn springs or building a new trailer suspension. \u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eWhat's include: \u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e1 Pair + 1 U-Bolt Kit + Hanger Kit for single axle: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(2) 4-leaf double eye springs\u003cbr\u003e(4) U-bolts – 5.5\", for 2-3\/8\" axle, 1\/2\"-20 thread\u003cbr\u003e(2) Tie plates\u003cbr\u003e(8) Nuts \u0026amp; lock washers\u003cbr\u003e(2) Front hangers (1-1\/2\")\u003cbr\u003e(2) Rear hangers (7\/8\")\u003cbr\u003e(4) Shackle straps – 2-5\/8\" (9\/16\" holes)\u003cbr\u003e(6) Shackle bolts – 3\" × 9\/16\"\u003cbr\u003e(6) Lock nuts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e2 Pair + 2 U-Bolt Kit + Hanger Kit for tandem axle: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(4) 4-leaf double eye springs\u003cbr\u003e(8) U-bolts \u003cbr\u003e(4) tie plates\u003cbr\u003e(16) nuts \u0026amp; lock washers\u003cbr\u003e(6) Hangers (2 front, 2 rear, 2 center)\u003cbr\u003e(2) Equalizers – 7-3\/4\"\u003cbr\u003e(8) Shackle straps\u003cbr\u003e(14) Bolts\u003cbr\u003e(14) Lock nuts\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e1 Pair + 1 U-Bolt Kit \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e(2) 4-leaf double eye springs\u003cbr\u003e(4) U-bolts – 5.5\", for 2-3\/8\" axle, 1\/2\"-20 thread\u003cbr\u003e(2) Tie plates\u003cbr\u003e(8) Nuts \u0026amp; lock washers\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eOEM \u0026amp; Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eReplaces:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eSW4B, LIB-401-DE, 124903, PR4B, A226, K71-403-00\u003cbr\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eFits:\u003c\/strong\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e \u003c\/span\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eStandard 3,500 lb axles with 1-3\/4\" wide double eye leaf springs\u003cbr\u003e\u003c\/span\u003e\u003cstrong\u003eAxle Types:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eUtility, boat, cargo, and livestock trailers\u003c\/p\u003e","brand":"TRAILER SUPPLIES","offers":[{"title":"1 Pair+1 Ubolt Kit","offer_id":47627607998693,"sku":null,"price":73.99,"currency_code":"USD","in_stock":true},{"title":"1 Pair+1 Ubolt Kit+1 Hanger Kit","offer_id":47627608031461,"sku":null,"price":104.99,"currency_code":"USD","in_stock":true},{"title":"2Pair+2 Ubolt Kit+1 Hanger Kit","offer_id":47627608064229,"sku":null,"price":199.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/0227\/7349\/files\/61IWwELgD2L._AC_SL1500.jpg?v=1757022834","url":"https:\/\/www.wtrailer.com\/products\/3500-lb-axles-25-25-4-leaf-double-eye-trailer-springs-1-3-4-wide-hanger-kits","provider":"Trailer Supplies","version":"1.0","type":"link"}