TOYOTA 90105-18006 Control Arm Bushing Flange Bolt

The genuine OEM part with part number Toyota 90105-18006 is a premium quality, high-tensile flange bolt (washer-based bolt) specifically engineered for securing critical suspension components, primarily for the dependable fastening of control arm bushings.

Technical Specifications and Construction

This specialized fastener meets the most stringent OEM requirements, ensuring stable suspension geometry and secure road handling:

• Material Quality: High-tensile, hardened steel alloy engineered to resist extreme dynamic and static mechanical loads.
• Design: Integrated flange (washer-based) head that provides a larger bearing surface. This evenly distributes clamping force across the bushing's metal sleeve and prevents self-loosening.
• Surface Protection: Specialized anti-corrosion coating that protects the component against moisture, road grime, and de-icing salt.

Function in the Vehicle

The control arm bushing bolt establishes a direct connection between the moving suspension elements and the vehicle chassis or subframe. It plays a critical role in maintaining suspension alignment, absorbing vibrations, and ensuring stable handling and steering response.

When Should It Be Replaced?

Because suspension fasteners are constantly subjected to heavy stress and environmental exposure, replacement is essential in the following scenarios:

• During Control Arm or Bushing Replacement: According to factory repair procedures, mounting bolts should be replaced with new OEM fasteners during major suspension work due to thread stress and the risk of bolt elongation.
• Corrosion: Severe rust can compromise the structural integrity of the bolt and prevent accurate torque tightening.
• Mechanical Damage: In the event of stretched threads, physical deformation, or damage to the bolt head.