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U Bolt 21 Inches
Manufactured from high-tensile steel, the 21-inch U Bolt resists stretching, bending, and fatigue under constant load cycles. It prevents the spring pack from shifting during braking, cornering, or rough-terrain usage, keeping suspension geometry intact. This enhances structural stability and protects adjoining components from premature wear.
By ensuring firm spring-to-axle connection, the U Bolt helps improve ride comfort, load distribution, and vehicle control. It minimizes vibration, reduces noise, and contributes to consistent suspension movement even with varying payloads. Built for durability, the component withstands corrosion, impact, and long operational hours, ensuring reliable performance in demanding environments.
Key Features
- Heavy-duty 21-inch U Bolt for large spring and axle assemblies
- Ensures secure clamping and prevents spring movement
- High tensile strength for superior durability
- Enhances suspension alignment and overall stability
- Corrosion-resistant finish for extended service life
Product Specifications
| GROUP | MODEL | REF. PART NUMBER | SPECIFICATIONS |
|---|---|---|---|
| 10.020 | 3128, 2523, 2528 | A4003510225 | 21-inch high-strength U Bolt for leaf spring and axle fastening |
Process Steps
- Raise the vehicle and support the axle safely.
- Remove the old U Bolt and clean the mounting points.
- Position the new U Bolt around the spring pack and axle.
- Install and tighten nuts evenly in a cross pattern.
- Torque all fasteners as per OEM guidelines.
- Recheck torque after initial usage to ensure secure seating.
FAQ
What is the purpose of a 21-inch U Bolt?
It secures heavier and larger leaf spring assemblies to the axle, ensuring alignment and stability.
How do I know when a U Bolt needs replacement?
Signs include rust, bending, loose clamping, noise, or vibration in the suspension.
