HomeSuspension > Shocks and StrutsKYB 551123 Suspension Strut - Rear Right
Part #: 551123

KYB 551123 Suspension Strut - Rear Right

Gas-a-just, Rear Right
11 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Gas-a-just, Rear Right
Fitment: Lexus, LS460
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of KYB Gas-a-just Suspension Strut 551123

The KYB Gas-a-just suspension strut 551123 is engineered for precise fitment on Lexus LS460 models. Designed to restore original handling and ride quality, this strut offers reliable performance with specific dimensions and mounting types tailored for your vehicle.

  • Compressed length: 19.19 inches
  • Extended length: 27.04 inches
  • Stroke length: 7.85 inches
  • Lower mount type: E2 (14.2/17.7x40)
  • Upper mount type: 12x1.25
  • R-stop included, no internal rebound spring or dust cover

About the KYB Gas-a-just Product Line

The Gas-a-just line from KYB is designed to provide a direct replacement suspension strut that matches the original equipment specifications. This product line focuses on maintaining factory ride comfort and handling characteristics by using gas-charged technology to reduce fade and improve response. The 551123 strut is part of this line, ensuring compatibility and performance for Lexus LS460 vehicles.

Detailed Product Description

This KYB Gas-a-just suspension strut 551123 features a compressed length of 19.19 inches and an extended length of 27.04 inches, with a stroke length of 7.85 inches. The lower mount uses an E2 type fitting (14.2/17.7x40), while the upper mount is sized at 12x1.25, ensuring a secure and precise installation. The strut includes an R-stop for controlled rebound but does not have an internal rebound spring or dust cover, which aligns with the original equipment design for the Lexus LS460.

Common Applications and Problem Solving

  • Restores proper suspension travel and damping on Lexus LS460
  • Eliminates excessive bouncing or poor handling caused by worn struts
  • Addresses uneven tire wear due to suspension issues
  • Improves vehicle stability and ride comfort
  • Replaces damaged or leaking original struts

Installation Notes and Tips

Installation of the KYB Gas-a-just suspension strut 551123 should be performed by a qualified technician familiar with Lexus LS460 suspension systems. Ensure the mounting points match the specified lower mount E2 type and upper mount 12x1.25 thread size. Since this strut does not include a dust cover or internal rebound spring, verify the condition of existing components and replace if necessary. Proper torque specifications should be followed to maintain safety and performance.

Quality Assurance and Warranty

KYB suspension components, including the Gas-a-just 551123 strut, are manufactured to meet or exceed OEM standards. This part undergoes rigorous testing to ensure durability and consistent performance. Warranty coverage details should be confirmed with the distributor or manufacturer, as KYB typically offers limited warranties on their suspension products.

BrandKYB
Part Number551123
PositionGas-a-just, Rear Right
Compressed Length19.19
Extended Length27.04
Lower Mount TypeE2(14.2/17.7X40)
R-stopY
Stroke Length7.85
Upper Mount Type12X1.25

This part fits 11 vehicles. Search below:

YearMakeModelDrive TypePositionNotes
2017LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2016LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2015LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2014LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2013LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2012LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2011LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2010LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2009LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2008LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just
2007LexusLS460RWDRear RightRecommended OEM Replacement; w/o Air Suspension; Gas-a-just

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

4853080386

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.