This is a genuine TOYOTA castle nut, part number 9017112013, specifically designed for JP applications. Castle nuts are a type of fastener used in conjunction with a bolt or stud that has a threaded end. They feature slots or 'castellations' on one end, which are designed to accept a cotter pin or split pin. This pin passes through a hole in the bolt or stud and then through one of the slots in the nut, effectively locking the nut in place and preventing it from loosening due to vibration or rotation. Using genuine TOYOTA parts ensures that you are receiving components manufactured to the exact specifications and quality standards of your vehicle. This castle nut is engineered for a precise fit and durable performance, contributing to the overall safety and integrity of the assembly it is used in. Proper installation and use of the correct hardware are crucial for maintaining the reliability and safety of your vehicle. This TOYOTA castle nut is an essential component for applications where a secure and locked fastening is required.
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