Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review → Mon–Fri 9:00 AM–5:00 PM CST  |  Sat 9:00 AM–3:00 PM  |  Sun Closed  |  Call or Text 815-357-3292  •  Free Shipping on Most Orders  •  Real-Time Rates When Applicable  •  Upgrade Delivery at Checkout  |  Ships Next Business Day Monday–Friday  |  We install what we sell — parts backed by real trailer service.  |  Need fitment help? Send us your trailer part photos and we will help you match it right.  |  How are we doing? Leave a review →
FAMILY OWNED & OPERATED

2-1/8" x 6-1/2" Square Trailer Axle U-Bolt Kit – 1/2" Diameter w/ Nuts (34143-KIT)

$16.84
Most items ship free — select items ship for $6.39
Only 7 left
Not Sure It Fits? Ask a Pro
2-1/8 x 6-1/2 Square Trailer Axle U-bolt Suspension Kit 1/2 Diameter w Nuts 34143-KIT

2-1/8" x 6-1/2" Square Trailer Axle U-Bolt Kit – 1/2" Diameter w/ Nuts (34143-KIT)

Heavy-duty U-bolt kit (34143-KIT) for mounting square trailer axles to leaf springs. Measures 2-1/8" inside width × 6-1/2" length with 1/2"-diameter threads. Commonly used on boat, utility, and cargo trailers with 2" square axles.

Part Number Quantity Description
34143-KIT 1 Kit 2-1/8" x 6-1/2" Square Axle U-Bolts (1/2" Dia) w/ Nuts – Trailer Suspension Mounting

Features

  • For securing square trailer axles to leaf-spring plates
  • 1/2"-diameter zinc-plated steel for corrosion resistance
  • Includes matching hex nuts for each U-bolt
  • Designed for marine and utility trailer use
  • Compatible with standard suspension plates and hardware

Specifications

Inside Width 2-1/8"
Length 6-1/2"
Rod Diameter 1/2"
Material Zinc-Plated Steel
Thread Type Coarse Thread w/ Hex Nuts

Fitment

  • Fits most 2" square tube trailer axles (boat, utility, and cargo types)
  • Used with 1-3/4" or 2" wide leaf springs and standard U-bolt plates
  • Direct replacement for common suspension mounting kits on marine trailers

A dependable replacement kit for securing square tube trailer axles. Ideal for maintenance or new builds requiring rust-resistant U-bolts and hardware.