Rear Shock Absorber for 2017-2024 Ford F-250 Super Duty & More - KYB 5540027

$96.99

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Part number: 5540027

UPC: 197244001716

Condition: New

Weight: 4.70 LBS

Item Package Quantity: 1

$96.99

Current Stock: 38

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KYB Suspension Shock Absorber P/N:5540027

$96.99

Description

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

Product information is for general reference and may contain errors. See our Disclaimer.

Installation instructions1

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

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

HC3Z18125B, HC3Z18125C

Buyer's Q&A

Frequently Asked Questions

Is this a KYB gas shock absorber or a twin-tube design?

It is a KYB Gas-a-just high-pressure monotube gas shock. Its monotube construction separates the gas and oil, which is different from a traditional twin-tube shock.

What vehicles does the KYB 5540027 fit?

It is a rear shock for the 2017-2024 Ford F-250 Super Duty and 2017-2022 Ford F-350 Super Duty. See the "Vehicles it fits" section to confirm engine-level fitment for your truck.

Does this shock fit the front or rear?

This is a rear-position shock absorber for the listed Super Duty applications.

Why choose a monotube shock for a truck that tows?

The Gas-a-just is designed for vehicles that work, tow, and carry larger, heavier tires and wheels, with fade-free operation and instant response under load.

Should I replace both rear shocks at the same time?

Shocks are typically replaced as a pair so both sides wear and respond evenly. This listing is for one shock; order the quantity your job requires.