TOYOTA 90942-02052 Wheel Stud

The TOYOTA 90942-02052 genuine (OEM) wheel stud (BOLT HUB) is a critical safety component responsible for the stable and secure mounting of the vehicle wheel to the wheel hub. Manufactured from premium-quality, high-tensile steel, this stud guarantees maximum structural integrity and durability under the most demanding road conditions and heavy loads.

Technical Specifications and Features:

• Manufacturer: TOYOTA (Genuine OEM part)
• Part Number: 90942-02052
• Part Type: Wheel Stud (Bolt Hub)
• Thread Size: M12 x 1.5
• Material: Heat-treated, high-tensile alloy steel
• Surface Treatment: Corrosion-resistant zinc-plated or phosphated coating for protection against environmental factors
• Installation Position: Front and rear wheel hub (varies by axle)

Function and Importance:

Wheel studs directly transmit driving and braking torque between the wheel hub and the wheel rim. They must withstand immense shear forces, severe vibration, and high temperatures generated by the braking system. The exact geometric design of genuine Toyota parts ensures an optimal fit into the hub splines, preventing the stud from spinning during wheel mounting or removal.

Typical Symptoms of Wear and Failure:

• Damaged or Stretched Threads: Most commonly caused by improper tightening torque (over-tightening) or cross-threading lug nuts.
• Corrosion: Rust formation from moisture and road salts can weaken the material integrity, eventually leading to stud breakage.
• Fatigue Failure: Sustained overloading or vibrations from unbalance can induce micro-cracks, which may cause sudden stud snapping.

To ensure safe driving conditions, it is strongly recommended to immediately replace damaged, stretched, or heavily corroded wheel studs, tightening exclusively with a torque wrench calibrated to factory specifications.