KYB Suspension Strut P/N:551126

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$159.99

MPN: 551126

UPC: 781552620372

Item Package Quantity: 1

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KYB Suspension Strut P/N:551126

$159.99

Description

Restore firm, responsive handling to the front-right corner of your Lexus with the KYB Gas-a-just Monotube Gas Strut (P/N 551126) — a KYB front strut assembly built as an OE monotube replacement for the 2006-2013 Lexus IS250 and 2011-2013 Lexus IS350. This high-pressure monotube gas strut mounts in the front right position and is designed to help restore the control and handling of the Lexus IS.

Two working chambers: an air-free hydraulic piston and valve area for responsiveness and control, plus a high-pressure nitrogen gas area with a floating piston for a comfortable ride during normal driving and added performance on demand.
Triple chrome-plated piston rod: an ultra-smooth rod that helps reduce seal wear, since fluid leaking can be a cause of strut failure.
Higher gas pressure: reacts quickly and is designed to improve steering response.
Monotube design: separates the gas and oil for fade-free operation and instant response.

Gas-a-just monotubes are designed for vehicles that work, tow, and run larger, heavier tires and wheels, and KYB notes the Gas-a-just helps keep electronic safety systems — which depend on the suspension, brakes, and tires working as intended — performing as designed. Sold individually for the front-right position; see the Buyer's Guide tab for full engine-level fitment.

Interchange: 4851080259 · 39131 · 39138

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

This part cross-references / interchanges with the following part numbers:

4851080259, 39131, 39138

Frequently Asked Questions

What vehicles does the KYB 551126 strut fit?

It's an OE monotube replacement strut for the 2006-2013 Lexus IS250 and 2011-2013 Lexus IS350, mounting in the front-right position. Check the Buyer's Guide tab to confirm engine-level fitment for your vehicle.

Is this a front strut?

Yes, 551126 is cataloged for the front-right position. Struts wear as a pair, so replacing the left and right sides together is recommended for balanced handling.

What makes the monotube Gas-a-just design different?

Its high-pressure monotube design separates the gas and oil into two chambers for fade-free operation and instant response, and the higher gas pressure reacts quickly to improve steering response.

What are signs my strut may need replacing?

Fluid leaking from the strut, a bouncy or unsettled ride, excess body movement, and uneven tire wear can be signs the strut may need replacing. Diagnose the cause before replacing.

Why does the triple chrome-plated piston rod matter?

The ultra-smooth triple chrome-plated rod is designed to reduce seal wear. Since fluid leaking can be a cause of strut failure, protecting the seal helps the strut hold its damping performance.