Tandem Trailer Axle Suspension Kit for 3500lb Capacity

The springs have a capacity of 1,750 lbs per each spring, designed for a standard 3,500 lbs trailer axle. The eye-to-eye length is 25-1/4 inches, with a free open of 3 inches and a leaf width of 1-3/4 inches. The springs feature 4 leaves and 9/16 inch bushing diameters, with nylon bushings installed.

These springs will replace the following part numbers: SW4B, 72-42, LIB-401-DE, UNA212, PR4B, 124903, 9150014, and 93184. Although the SKU numbers may differ, the springs are the same.

Included in the kit is a 3,500 lbs axle U-bolt kit for 2-3/8" diameter round trailer axles. The kit contains 4 U-bolts that are 5-1/2" long with a 1/2" diameter, 2 tie plates for 1-3/4" leaf springs, and 8 hex nuts (1/2"-20).

Additionally, the kit includes a complete tandem trailer axle hanger kit for 1-3/4" leaf springs. This kit consists of 2 EQ-E1 equalizers, 6 hangers that are 3" tall, 8 shackle straps, and 14 shackle bolts (9/16"-18 x 3" long) with locknuts.

LIBRA has been supplying the US OEM trailer industry with reliable and high-quality parts for over 16 years. Their products are trusted by major trailer and trailer axle manufacturers.

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