KYB 551132 Suspension Strut - Rear

Overview of KYB Gas-a-just Suspension Strut 551132

The KYB Gas-a-just suspension strut 551132 is engineered for Lexus IS250 and IS350 models, providing reliable shock absorption and improved ride control. Designed with precise dimensions and internal components, this strut supports vehicle stability and handling.

• Compressed length: 16.96 inches
• Extended length: 21.92 inches
• Stroke length: 4.96 inches
• Lower mount type: E2 (14.2x60)
• Upper mount type: 12x1.25
• Internal rebound spring included
• R-stop feature included, no B-stop
• Dust cover not included

Details on KYB Gas-a-just Product Line

The Gas-a-just line by KYB focuses on gas-charged struts designed to restore original equipment ride quality and handling. This product line incorporates an internal rebound spring to maintain consistent damping performance, which is critical for Lexus IS250 and IS350 vehicles. The 551132 strut is part of this line, offering precise fitment and engineered durability for suspension replacement needs.

Technical Description of the 551132 Suspension Strut

This KYB suspension strut features a compressed length of 16.96 inches and extends to 21.92 inches, providing a stroke length of 4.96 inches. The lower mount uses an E2 type with dimensions 14.2x60, while the upper mount is sized at 12x1.25, ensuring compatibility with the Lexus IS250 and IS350 chassis. The internal rebound spring enhances shock absorption by controlling rebound forces, while the R-stop feature prevents overextension. Note that this strut does not include a dust cover or B-stop, which may require consideration during installation.

Common Applications and Problem Solving

• Restores proper suspension travel and damping on Lexus IS250 and IS350
• Addresses issues with excessive bounce or poor handling
• Replaces worn or leaking original struts to improve ride stability
• Corrects suspension noise caused by damaged internal components
• Improves vehicle control during cornering and braking

Installation Notes and Tips

• Verify compatibility with Lexus IS250 or IS350 before installation
• Ensure correct orientation of upper and lower mounts (12x1.25 upper, E2 14.2x60 lower)
• Check for the presence of internal rebound spring and R-stop during assembly
• Consider replacing dust covers separately if needed, as this strut does not include one
• Professional installation recommended to maintain suspension alignment and safety

Quality Assurance and Warranty

KYB Gas-a-just struts, including part number 551132, are manufactured to meet or exceed OEM specifications for Lexus IS250 and IS350 models. The internal rebound spring and R-stop features contribute to consistent performance and durability. Warranty coverage details should be confirmed with the point of purchase or KYB directly, as they may vary by region.