This front spring U-bolt is a genuine OEM replacement designed for

• Isuzu NPR-HD

• Isuzu NQR

• Isuzu NRR

Engine Supported: 4HK1 5.2L Diesel
Years: 2004–2018

The U-bolt secures the front leaf spring to the axle, maintaining proper suspension geometry, ride height, and axle alignment. Correct U-bolt installation prevents the following:

• Axle shifting or movement under load

• Uneven tire wear

• Suspension noise or vibration

• Premature leaf spring wear

Over time, U-bolts may stretch, corrode, or loosen due to road conditions and load stress. Replacing with an OEM U-bolt ensures correct thread size, strength, and clamping force for safe suspension performance.

Key Features

• Genuine New OEM front spring U-bolt

• Fits Isuzu NQR, NPR-HD, and NRR (2004–2018)

• Compatible with 4HK1 5.2L diesel engine

• Heavy-duty steel construction for durability

• Precision thread and length for factory fit

• Direct OEM replacement for front leaf spring attachment

Vehicle Compatibility

Fits:

• Isuzu NPR-HD

• Isuzu NQR

• Isuzu NRR

Engine: 4HK1 5.2L Diesel
Years: 2004–2018
Condition: New OEM
Part Type: Front Spring U-Bolt
Placement: Front Axle / Leaf Spring Mount

Common Signs You Need Replacement

• Loose or shifted front axle

• Uneven tire wear

• Clunking or rattling from front suspension

• Rusted, stretched, or damaged U-bolts

• Vehicle sagging or uneven ride height

  Frequently Asked Questions (FAQ)

  What is a front spring U-bolt?

  It is a heavy-duty bolt that clamps the front leaf spring to the axle, maintaining proper suspension alignment and stability.

  Which models does this fit?

  This OEM front spring U-bolt fits Isuzu NQR, NPR-HD, and NRR trucks (2004–2018) with 4HK1 5.2L diesel engines.

  Can worn U-bolts affect vehicle safety?

  Yes. Loose or damaged U-bolts can cause axle misalignment, uneven tire wear, and compromised suspension performance.

  Is professional installation recommended?

  Yes. Proper torque and alignment are critical to ensure suspension integrity and safe vehicle operation.

  Why choose OEM replacement?

  OEM U-bolts guarantee correct dimensions, material strength, and durability for reliable suspension performance.