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- 1,750lbs capacity per each spring, for standard 3,500lbs trailer axle,Eye to Eye length: 25-1/4 inch, Free open: 3 inch, width of leaf: 1-3/4 inch, 4 leaves, 9/16 inch bushing dia, nylon bushings installed
- It will replace SW4B / 72-42 / LIB-401-DE / UNA212 / PR4B / 124903 / 9150014 / 93184 (different SKU# but same spring)
- Include 3,500lbs axle U-bolt kit for 2-3/8" dia round trailer axles , Kit include: 8 x 5-1/2" long U bolts, U bolts dia. 1/2"; 4 x tie plates for 1-3/4" leaf springs; 16 x 1/2"-20 hex nuts
- Include Complete tandem trailer axle hanger kit for 1-3/4" leaf springs, Kit include: 2 x EQ-E1 equalizers, 6 x 3" tall hangers, 8 x shackle straps, 14 x 9/16"-18 x 3" long shackle bolts and locknuts
- LIBRA has been supplying US OEM trailer industry for over 16 years, reliable and quality parts trusted by major trailer & trailer axle manufacturers.
ChasD
2025-07-22 11:54:30
Well built - fits exactly as it should. Quality materials and coatings. I couldn't be happier with this kit. Had everything I needed and more. I have weld-in-place brackets for the leaf spring ends, so I didn't require the u-brackets that the kit provided, but nice to know if I ever break one, that I have them for the repair. Great little kit! Heavy Duty U-Bolts and mounting plates. Good quality hardware (nuts/washers/coupling plates). HIGHLY RECOMMEND
JB
2025-06-28 19:27:10
Fit my double axel trailer great.
Darryl B.
2025-06-21 12:53:04
Actually good quality. Everything fit together extremely well. Trailer rides great again.
Lee
2025-04-19 14:23:03
Good product everything lined up perfectly and fit the way it should I would def purchase again
Chris Mckay
2025-04-01 14:14:28
Works great was exactly what I needed great price for quality of product
Rick Jacques
2025-03-07 11:07:01
Great fit. Easy price.
Ryan Robinson
2025-02-03 12:14:33
I liked everything was in one kit. I didnt like the u bolts were too small. Wrong axle tube diameter. Maybe it says that in the listing idk but couldn't use those or the mount plates.
Michell
2024-11-24 14:20:58
good quality
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