KYB Suspension Shock Absorber P/N:5540027

Smooth out the ride and keep your loaded truck planted with the KYB Gas-a-just Shock Absorber (P/N 5540027), a high-pressure monotube gas KYB shock absorber built for the rear of the 2017-2024 Ford F-250 Super Duty and 2017-2022 Ford F-350 Super Duty. This monotube-designed OEM replacement is engineered for trucks that work, tow, and run larger, heavier tires and wheels.

Unlike a traditional twin-tube shock, the Gas-a-just uses 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 for comfortable everyday driving and instant response on demand.

• High-pressure monotube design: separates the gas and oil for fade-free operation and quick response, since it never experiences fade due to aeration.
• Improved steering response: the higher gas pressure reacts quickly to help restore the designed control and handling of Super Duty Ford trucks.
• Triple chrome plated piston rod: an ultra-smooth rod reduces seal wear; fluid leaking can be a cause of shock failure.
• Supports safety systems: helps keep electronic safety systems performing as designed by the vehicle manufacturer.

Interchange: HC3Z18125B · HC3Z18125C