Details

• Brand:

  

• SKU:

  90177-12002

• Positions: Left, Right, Upper
• Other Names:

  Suspension Shock Absorber Nut, Top Nut, Suspension Strut Nut, Nut Lock

• Description:

  Toyota Lock Nut #90177-12002 is a genuine fastening component used in the rear shock absorber and spring assembly. It helps hold suspension components in their intended position, supporting stable fit and consistent rear suspension performance.

  • Secure Fastening: Holds rear suspension components in place
  • Matched Threads: Built for proper fit with Toyota hardware
  • Assembly Support: Helps maintain accurate suspension component installation
  • Genuine Replacement: Made for Toyota suspension performance requirements

  Genuine Toyota parts are designed to fit your specific Toyota model and are backed by Toyota's genuine parts warranty.

  It sits at the very top of the rear shock absorber stem, acting as the final securing hardware that clamps down on the cushion retainers and rubber insulators to maintain accurate suspension alignment and performance.

  Thread & Build: Features factory-matched high-tensile threads coated to resist heavy underbody corrosion, road salt, and moisture.

  Most factory suspension top-hat nuts are designed as one-time-use locking fasteners. When removing or replacing your rear shocks, installing a brand-new nut is highly recommended for a few key reasons:

  Prevents Backing Out: The locking mechanism inside the threads distorts upon initial factory torque. Reusing an old nut significantly increases the risk of it backing off due to road vibrations.

  Avoids Squeaks and Play: If the nut loses its structural grip, the upper shock stem can develop microscopic play, leading to a frustrating clunking or squeaking noise in the rear cabin.

  Ensures Proper Torque: Fresh threads ensure you reach the exact factory foot-pounds of torque without stripping the shock absorber's threaded rod.

  Directly Adjacent Hardware Stack

  Since you are looking at the topmost fastener of the rear suspension tower, it is highly likely you are servicing or replacing the nearby rubber cushions that tend to dry-rot and crack over time. This nut physically clamps down on:

  The Upper Metal Plate: Cushion Retainer #90080-94195

  The Upper Rubber Bushing: Shock Absorber Cushion Washer #90080-94196

• Condition: New
• Notes: Included with shock. Included with strut.
• Replaces:

  9418711200

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