• 12-42 – U-Bolt Plate - SKU 12-42
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Trailer Parts Mart

12-42 – U-Bolt Plate

12-42 – U-Bolt Plate

12-42

$47.95 USD
$0.00 USD $47.95 USD
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The 12-42 U-Bolt Plate is a heavy-duty steel plate designed for securely mounting trailer axles to leaf springs using U-bolts. Built to handle demanding loads, this plate ensures proper suspension alignment and stability, making it ideal for trailer maintenance, axle swaps, and custom builds.

Features:

  • Durable steel construction for long-lasting performance
  • Pre-drilled to fit standard U-bolt patterns
  • Supports 3″ diameter axles (commonly used on 5.2K–7K axles)
  • Designed for even distribution of clamping force
  • Easy integration into existing suspension systems

Specifications:

  • Part Number: 12-42
  • Material: Heavy-gauge steel
  • Finish: Corrosion-resistant coating
  • Fits Axle Diameter: 3″
  • Dimensions: 6.5″ L x 3.75″ W
  • Application: Mounts axle to leaf spring with U-bolts

Applications:

  • Suitable for tandem and single axle trailers
  • Compatible with utility trailers, flatbeds, cargo haulers, and more
  • Designed for use with 5.2K–7K axles and 3″ diameter U-bolts

Shipping information

Orders under $30 have a $15 shipping charge. Orders of $30 or more ship free.

Returns

Eligible items can be returned within 30 days. Review the return policy before sending an item back.

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