KYB 5540013 Shock Absorber - Rear

Overview of KYB Gas-a-just Suspension Shock Absorber

The KYB Gas-a-just 5540013 suspension shock absorber is engineered for Lexus GS200t, GS300, GS350, RC200t, and RC350 models. Designed to restore original handling and ride comfort, this shock absorber features precise dimensions and mounting types tailored for these vehicles.

• Compressed length: 18.69 inches
• Extended length: 23.44 inches
• Stroke length: 4.75 inches
• Lower mount type: E2 (14.2x70)
• Upper mount type: S1 (12mm)
• Internal rebound spring included
• R-stop included, B-stop not included
• No dust cover included

About the KYB Gas-a-just Product Line

The Gas-a-just line by KYB is designed to provide consistent damping performance by using a gas-charged design that reduces aeration and foaming inside the shock absorber. This technology helps maintain stable handling and ride quality over time. The 5540013 model incorporates these features to meet the specific suspension requirements of select Lexus models, ensuring reliable performance and durability.

Detailed Product Description

This KYB Gas-a-just shock absorber 5540013 is built with a compressed length of 18.69 inches and an extended length of 23.44 inches, providing a stroke length of 4.75 inches. The lower mount uses an E2 type (14.2x70), while the upper mount is an S1 type (12mm), ensuring proper fitment and secure installation on compatible Lexus vehicles. The internal rebound spring enhances shock response and ride control, while the inclusion of an R-stop helps prevent overextension. Note that this model does not include a dust cover or B-stop.

Common Applications and Problem Solving

• Restores factory ride height and suspension travel on Lexus GS and RC models
• Improves vehicle stability and handling during acceleration and braking
• Reduces excessive body roll and sway on uneven roads
• Addresses worn or leaking shock absorbers causing poor ride quality
• Helps maintain tire contact with the road for safer driving conditions

Installation Notes and Tips

• Verify compatibility with Lexus GS200t, GS300, GS350, RC200t, and RC350 before installation
• Use proper tools to avoid damage to mounting points (E2 lower mount and S1 upper mount)
• Inspect related suspension components for wear during replacement
• Follow vehicle manufacturer torque specifications for mounting hardware
• Test drive after installation to confirm proper function and ride quality

Quality Assurance and Warranty

KYB manufactures the Gas-a-just 5540013 shock absorber to meet OEM specifications for fit, form, and function. The internal gas charge and rebound spring design contribute to consistent damping performance. While specific warranty details are not provided here, KYB typically offers coverage against defects in materials and workmanship. Refer to KYB documentation for exact warranty terms.