KYB Suspension Shock Absorber P/N:554386

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$90.99

MPN: 554386

UPC: 781552663379

Item Package Quantity: 1

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KYB Suspension Shock Absorber P/N:554386

$90.99

Description

Firm up the ride and keep the rear of your crossover planted with the KYB Gas-a-just Suspension Shock Absorber (MPN 554386), a high-pressure monotube gas shock. It installs as a rear-position, monotube-designed OE replacement for the 2008-2012 Ford Escape, 2008-2011 Mazda Tribute, and 2008-2011 Mercury Mariner — see the Buyer's Guide tab for engine-level fitment.

Monotube gas design: two separate 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 — so the shock never fades from aeration.
Fade-free operation: the high-pressure monotube layout keeps gas and oil separated for consistent damping and instant response.
Triple chrome-plated piston rod: an ultra-smooth rod helps reduce seal wear, since fluid leaking can be a cause of shock failure.
Quick response: the higher gas pressure is designed to improve steering response and helps keep electronic safety systems performing as intended.

Designed for vehicles that work, tow, and run larger, heavier tires and wheels, the Gas-a-just helps restore the designed control and handling. If worn rear shocks are the cause of excessive bounce, nose dive, or poor body control, this replaces them.

Interchange: 9L8Z18125A · 9L8Z18125B · 9L8Z18125C · CL8Z18125A · CL8Z18125B · CL8Z18125C

Manufacturer's Description

Product Specs

Buyer's Guide

Interchange Part Numbers

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

9L8Z18125A, 9L8Z18125B, 9L8Z18125C, CL8Z18125A, CL8Z18125B, CL8Z18125C

Frequently Asked Questions

What is the KYB 554386?

It's a KYB Gas-a-just high-pressure monotube gas shock absorber for the rear position, serving as a monotube-designed OE replacement for the listed applications.

Which vehicles does it fit?

It fits the 2008-2012 Ford Escape, 2008-2011 Mazda Tribute, and 2008-2011 Mercury Mariner. Check the Buyer's Guide tab to confirm fitment for your vehicle.

How is a monotube different from a twin-tube shock?

The monotube uses two separate chambers — an air-free hydraulic piston/valve area and a high-pressure nitrogen gas area with a floating piston — which keeps gas and oil separated to avoid fade from aeration.

What is the triple chrome-plated piston rod for?

The ultra-smooth, triple chrome-plated rod helps reduce seal wear. Since fluid leaking can be a cause of shock failure, this supports longer seal life.

What are signs my rear shocks may need replacing?

Excessive bouncing, nose dive under braking, poor body control over bumps, or fluid leaking from the shock. Diagnose the cause before replacing, as symptoms can have other sources.