Firm up rear-end control and tame body motion with the KYB Gas-a-just High Pressure Monotube Gas Shock 554406, a rear-position shock absorber that drops in as a direct-fit replacement for the 2013-2018 Acura RDX (see the Buyer's Guide tab for engine-level applications). It's KYB's OE monotube replacement, built to help restore the designed control and handling of the RDX.
- 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.
- High-pressure monotube design: Separates the gas and oil for fade-free operation and instant response.
- Triple chrome plated piston rod: An ultra-smooth rod that reduces seal wear, since fluid leaking can be a cause of shock failure.
- Built for working vehicles: Gas-a-just monotubes are designed for vehicles that work, tow, and run larger, heavier tires and wheels, and help keep electronic safety systems performing as designed.
Shocks wear as a pair, so replacing both rear units together is recommended for balanced ride control. Sold individually; order two for a complete rear axle set.
Interchange: 52610TX4A02 · 52610TX5A02
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicle does this shock fit?
It's a direct-fit rear replacement for the 2013-2018 Acura RDX. Check the Buyer's Guide tab to confirm the engine-level application for your vehicle.
What position is this shock for?
This is a rear shock absorber. Replace both rear units together as a matched pair for balanced ride control.
How does the high-pressure monotube design work?
It separates the gas and oil into separate chambers for fade-free operation and instant response, with a floating piston in the high-pressure nitrogen area for ride comfort and added control.
Why does it use a triple chrome plated piston rod?
The ultra-smooth triple chrome plated rod is designed to reduce seal wear. Since fluid leaking can be a cause of shock failure, this helps protect the seal.
Is this shock sold as a pair?
No, it's sold individually. Order two to replace both rear shocks together, which is recommended for even, balanced ride control.
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