This is a genuine TOYOTA castle nut, part number 9021427001. Designed and manufactured to meet TOYOTA's stringent quality standards, this nut provides a secure and reliable fastening solution for various automotive applications. Castle nuts are specifically engineered with slots on one end, allowing them to be used with a cotter pin or other locking mechanism. This prevents loosening due to vibration or movement, which is crucial for safety-critical components. Using genuine TOYOTA parts ensures optimal compatibility and longevity for your vehicle's systems. Proper installation of this castle nut is essential for maintaining the integrity and safety of the assembly it secures. Always refer to your vehicle's service manual for correct torque specifications and installation procedures. This part is a direct replacement for the original nut, guaranteeing a perfect fit and function.
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