Firm up a hard-working rear axle with the KYB shock absorber (P/N 5540022), a high-pressure monotube gas shock that installs as a direct-fit rear replacement for the 2014-2025 RAM 2500. This KYB gas shock absorber is a Gas-a-just monotube unit with valving developed specifically for Rams.
- High-pressure monotube design: separates the gas and oil into distinct chambers for fade-free operation and instant response — an air-free hydraulic piston/valve area for control, plus a high-pressure nitrogen chamber with a floating piston.
- Triple chrome-plated piston rod: an ultra-smooth rod finish helps reduce seal wear, since leaking fluid can be a cause of shock failure.
- Added damping for work and towing: adds up to 25% more damping over original-equipment shocks, intended for trucks that work, tow, and run larger, heavier tires and wheels.
- Supports vehicle systems: the higher gas pressure responds quickly to help steering response and helps keep electronic safety systems performing as the manufacturer intended.
Sold individually; replacing both rear shocks together as a matched pair is recommended for even, balanced damping.
Interchange: 68233919AA · 68233927AA · 68233929AB
This part cross-references / interchanges with the following part numbers:
Frequently Asked Questions
What vehicles does the KYB 5540022 shock absorber fit?
It is a direct-fit rear shock for the 2014-2025 RAM 2500. See the Buyer's Guide tab to confirm the exact application for your truck.
Is this a front or rear shock absorber?
This KYB Gas-a-just monotube shock is cataloged for the rear position on the listed RAM 2500 applications.
What makes the Gas-a-just monotube different from a twin-tube shock?
The high-pressure monotube design separates the gas and oil into two chambers, so it resists fade from aeration and offers quick, instant response compared with a traditional twin-tube shock.
Why is the piston rod triple chrome plated?
Fluid leaking can be a cause of shock failure, so the ultra-smooth triple chrome-plated rod is designed to reduce seal wear.
Do I need to replace both rear shocks at once?
Shocks are sold individually. Replacing both rear shocks together as a matched pair is recommended so damping stays even and balanced across the axle.
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