
5540004 Gas-a-Just Shock Absorber for 2014-2021 Lexus Models
The KYB 5540004 Gas-a-Just Shock Absorber is a direct-fit rear unit designed to restore your vehicle's original ride control and handling.
KYB 5540004 Gas-a-Just Shock Absorber Features:
- The correct, monotube-designed OEM replacement
- The KYB Gas-a-just helps restore the designed control and handling of your vehicle & IS350 (RWD)
- Gas-a-Just monotubes are designed for vehicles that work, tow, and have larger, heavier tires & wheels
- High pressure monotube design separates the gas and oil for fade free operation and instant response
- Fluid leaking can be a cause of shock failure, the KYB Gas-a-just has an ultra-smooth triple chrome plated chrome piston rod to reduce seal wear
- The higher gas pressure of the KYB Gas-a-Just responds quickly to improve steering response
- Electronic safety systems depend on the suspension, brakes and tires operating as the vehicle manufacturer intended. The KYB Gas-a-just helps keep Electronic Safety Systems performing as designed.
- Compressed Length: 18.5 in.; Extended Length: 24.05 in.
- Internal Rebound Bumper Included
- Sold Individually
Performance Upgrade for Precise Handling
Upgrade your vehicle’s ride and handling with KYB Gas-a-Just Shocks. These high-pressure, monotube shocks are engineered to deliver improved stability, quicker response, and reduced body roll compared to standard twin-tube designs. Ideal for performance-oriented drivers, KYB Gas-a-Just Shocks automatically adjust to changing road conditions, providing consistent control and enhanced tire contact. Whether you're restoring a classic or refining a modern daily driver, KYB offers a noticeable improvement in suspension performance and ride quality.

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