NISSAN 48634-VS40A Left Tie Rod End Lock Nut

This genuine NISSAN (SKU: 48634-VS40A) left-hand tie rod end lock nut is a critical fastener within the vehicle's steering and suspension system. The primary function of the lock nut is to firmly secure the position of the tie rod end on the tie rod, preventing movement after wheel alignment. This ensures precise toe-in and stable handling.

Technical Features and Specifications:

• Part Type: Tie rod end lock nut (left side)
• Manufacturer: NISSAN (Genuine OEM part)
• Material Quality: High-tensile, heat-treated steel alloy for maximum torque tolerance
• Surface Treatment: Corrosion-resistant coating for protection against environmental influences and road salt
• Thread Profile: Precision fine thread for accurate and secure fastening

Role and Importance of the Lock Nut:

The tie rod end lock nut ensures that steering geometry remains unchanged during driving, even under extreme physical impacts (such as road irregularities or vibration). An inferior or damaged nut can lead to suspension misalignment, degrading straight-line stability and increasing the risk of accidents.

Common Symptoms of Failure or Wear:

• Thread Damage: Often occurs due to improper installation or overtightening.
• Severe Corrosion: Rust can cause the nut to seize onto the thread, preventing future alignment adjustments or eventually compromising the structural integrity of the material.
• Loosening: If the nut loses its clamping force, the tie rod end may rotate, leading to uneven, accelerated tire wear and an unstable steering feel.

When replacing or adjusting suspension and steering components, it is always recommended to use a new genuine OEM lock nut to ensure maximum safety.