Description

55342-3K000 BUSH Technical Guide

Sedan Rear Suspension Precision | Sonata & Optima Specialist

Service Note: Upper arm wear often coincides with trailing arm issues. Inspect your Rear Trailing Arm Bushes when replacing the 55342-3K000.

Advanced Specs of the 55342-3K000 BUSH

Sedan rear suspensions are critical for passenger comfort and handling stability. This bush is engineered with a high-durability rubber compound that provides superior NVH (Noise, Vibration, and Harshness) isolation. Its inner steel sleeve is treated with an anti-corrosive coating to prevent seizing and ensure long-term structural integrity in the rear upper control arm.

Vehicle Fitment

  • Brand: Hyundai / Kia
  • Model: Sonata / Optima
  • Position: Rear Upper Control Arm
  • Years: 2005 – 2015

Technical Specs

  • Material: Specialized Natural Rubber
  • Sleeve: Cold-Drawn Steel (Zinc Plated)
  • Standard: OE Quality Replacement
  • Type: Silentblock / Press-Fit

55342-3K000 BUSH FAQ

How often should I replace these bushings?

Typically, suspension bushings should be inspected every 50,000 km. Replacement is usually required between 100,000 km and 150,000 km depending on road conditions and usage.

Is an alignment necessary after replacement?

Yes. Any service on control arms can affect the rear wheel alignment. A full 4-wheel alignment is recommended to ensure correct tire wear and handling stability.

Experiencing rear suspension noise? Learn how to diagnose worn bushings to keep your sedan riding smoothly.

Verify 55342-3K000 BUSH Fit

Always use the current settings for the WhatsApp link and its box. Please contact us with your VIN to confirm this specific part is correct for your vehicle.


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Questions and Answers

Is this bush for the upper or lower control arm?
The 55342-3K000 is specifically designed for the Rear Upper Control Arm (also known as the rear upper link).
Can this part be used on both Hybrid and Gasoline versions?
Yes, this bush is compatible with both standard internal combustion and hybrid configurations of the Sonata and Optima, as they share the same rear upper arm geometry.
What are the signs of a worn-out bush?
Look for visible cracks in the rubber, center sleeve separation, or excessive "play" in the upper arm when the vehicle is lifted for inspection.
Why should I choose a high-quality 55342-3K000 BUSH?
Using a premium-grade bush ensures that the rubber compounds can withstand environmental factors like heat and road salt while maintaining the factory-intended suspension feel.

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