NISSAN 40604-44000 Kingpin Bearing Shim

The genuine OEM NISSAN 40604-44000 kingpin bearing shim is a precision-engineered component essential for the proper operation of the suspension and steering systems. This shim is designed for the accurate adjustment of axial play in the swivel / kingpin bearings, ensuring optimal bearing preload.

Technical Features and Functions:

• Manufacturer: NISSAN (Genuine OEM part)
• Part Number: 40604-44000
• Part Type: Swivel Housing / Kingpin Bearing Shim
• Material Quality: High-tensile, wear-resistant precision steel engineered to withstand continuous mechanical stress and environmental exposure.
• Function: Fine-tuning the clearance between the swivel housing and the steering knuckle, eliminating undesirable free play.

Importance of Proper Shimming:

Precise shimming of kingpin bearings is critical for vehicle stability and handling. Excessive clearance creates suspension play, leading to vague steering response, wheel shimmy (vibration), and uneven tire wear. If the clearance is insufficient (too tight), the bearings can overheat and suffer premature failure. Genuine NISSAN shims guarantee accurate, durable adjustment in full accordance with factory specifications.