KYB Suspension Shock Absorber 554359
KYB Suspension Shock Absorber 554359

KYB Suspension Shock Absorber P/N:554359

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$89.99
MPN: 554359
UPC: 781552555285
Item Package Quantity: 1
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KYB Suspension Shock Absorber P/N:554359
KYB Suspension Shock Absorber P/N:554359
$89.99

Smooth out every mile with the KYB shock absorber Gas-a-just 554359, a high-pressure monotube gas shock that installs as a direct-fit FRONT replacement for the 2010 Dodge Ram 2500, 2010 Dodge Ram 3500, 2011-2013 RAM 2500, and 2011-2012 RAM 3500. Its components and valving are designed specifically for Dodge Rams.

  • 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 — separate the gas and oil for fade-free operation and instant response, so it never experiences fade due to aeration.
  • More damping: Adds up to 25% more damping performance over original equipment shocks, with additional damping over the OE design for vehicles that work, tow, and run larger, heavier tires and wheels.
  • Quick steering response: The higher gas pressure of the Gas-a-just responds quickly to improve steering response and helps keep Electronic Safety Systems performing as designed.
  • Durable rod: An ultra-smooth triple-chrome-plated piston rod reduces seal wear, since fluid leaking can be a cause of shock failure.

Signs this shock may need replacing include a bouncy ride, excessive body movement, or fluid seepage.

Interchange: 5086590AF · 911221

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

5086590AF, 911221

Frequently Asked Questions

What vehicles does the KYB 554359 shock absorber fit?

It's a direct-fit FRONT shock for the 2010 Dodge Ram 2500 and 3500, the 2011-2013 RAM 2500, and the 2011-2012 RAM 3500. See the Buyer's Guide tab to confirm your vehicle.

How is this KYB gas shock absorber different from a twin-tube?

This monotube gas shock separates the gas and oil into two chambers for fade-free operation and instant response, and it never experiences fade due to aeration like a traditional twin-tube design.

Does the KYB Gas-a-just add more damping than the factory shock?

Yes. It adds up to 25% more damping performance over original equipment shocks, with additional damping designed for vehicles that work, tow, and run larger, heavier tires and wheels.

What are the signs this shock absorber needs replacing?

Common signs include a bouncy or unstable ride, excessive body movement, uneven tire wear, or fluid seepage. Diagnose the cause before replacing, as other suspension parts can share these symptoms.

What interchange numbers does this KYB gas shock absorber excel g replace?

This part cross-references 5086590AF and 911221. Match your original part number and confirm fitment for your vehicle before ordering.

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