Details

• Brand:

  

• SKU:

  23212017

• Positions: Left, Right
• Other Names:

  Transverse Link Castle Nut, Ball Joint Nut, Castle Nut

• Description:

  With WRX STI, 2005-07. With gt limited spec b. With WRX STI, 2004.

  Ball Joint Castle Nut - Subaru (23212017)

  The Ball Joint Castle Nut - Subaru (23212017) is a Genuine OEM fastener designed to securely lock the ball joint stud to the suspension control arm or steering knuckle. Its castellated (slotted) design allows the use of a cotter pin for added safety, preventing the nut from loosening under vibration or load. Manufactured by Subaru to precise factory standards, this nut ensures reliable fitment and secure fastening in critical suspension components.

  Crafted from durable, high-strength steel, the 23212017 is engineered to withstand the constant stress, torque, and road conditions that suspension systems endure. Subaru’s rigorous testing process guarantees long-term durability and corrosion resistance, ensuring that the nut maintains its integrity over years of service.

  As a direct-fit OEM replacement, this castle nut is designed for select Subaru models and installs easily without modification. Both professional mechanics and DIY enthusiasts can rely on its exact specifications for seamless installation and proper torque application.

  By providing secure locking of the ball joint assembly, the 23212017 helps prevent premature wear, excessive play, or unsafe suspension conditions. Using a Genuine Subaru fastener ensures that critical steering and suspension systems operate safely and as intended.

  The Ball Joint Castle Nut - Subaru (23212017) is the dependable choice for maintaining factory-level safety and performance in Subaru vehicles. It is trusted for its precision engineering and proven reliability.

  • Genuine OEM Subaru part manufactured to strict factory standards

  • Part number: 23212017 for exact fitment and compatibility

  • Castellated design for use with a cotter pin to prevent loosening

  • Built from durable, corrosion-resistant, high-strength steel

  • Direct-fit replacement for accurate and simple installation

  • Ensures secure ball joint fastening and long-term suspension reliability

  By choosing this OEM Ball Joint Castle Nut, owners and mechanics benefit from consistent safety, secure fastening, and reduced risk of suspension failures. Because it matches original Subaru specifications, it also ensures dependable performance and long-term durability.

  
  

• Condition: New
• Notes: Included with lower control arm.

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