Rear Shock Absorber for 1997-2003 Ford F-150 & More - KYB KG54312

$87.99

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Part number: KG54312

UPC: 781552543121

Condition: New

Weight: 4.50 LBS

Item Package Quantity: 1

$87.99

Current Stock: 72

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KYB Suspension Shock Absorber P/N:KG54312

$87.99

Description

Firm up the rear ride and control body motion with the KYB Gas-a-just Shock Absorber KG54312, a high-pressure monotube gas shock that installs as a direct-fit rear replacement for the 1997-2003 Ford F-150 and the 2004 Ford F-150 Heritage. If you're searching for a KYB shock absorber that stands up to work and towing, this monotube design separates the gas and oil for fade-free operation and instant response.

How it works: The Gas-a-just uses two separate chambers — an air-free hydraulic piston and valve area for responsiveness and control, plus a high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds performance on demand.

Triple chrome-plated piston rod: an ultra-smooth rod helps reduce seal wear, since fluid leaking can be a cause of shock failure.
Quick response: the higher gas pressure responds quickly to help improve steering response.
Extra damping: adds up to 25% more damping performance over original equipment shocks, with components and valving designed specifically for Ford F-150s that work, tow, and run larger, heavier tires and wheels.
Safety-system support: helps keep Electronic Safety Systems performing as designed.

Sold individually; replacing both rear shocks together as a matched pair is recommended for balanced control.

Interchange: 2L3Z18125FA · 3L3Z18125AA · F65Z18125BB · 77778 · 911132

Installation instructions1

Manufacturer's description

Product specs

Vehicles it fits

Interchange numbers

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

2L3Z18125FA, 3L3Z18125AA, F65Z18125BB, 77778, 911132

Buyer's Q&A

Frequently Asked Questions

What vehicles does the KYB KG54312 fit?

It's a rear-position direct-fit for the 1997-2003 Ford F-150 and the 2004 Ford F-150 Heritage. See the "Vehicles it fits" section to confirm the engine and configuration for your truck.

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

It's the KYB Gas-a-just, a high-pressure monotube gas shock. The monotube design separates the gas and oil for fade-free operation and instant response, unlike a traditional twin-tube shock.

What makes the Gas-a-just different from a standard shock?

It uses two separate chambers: an air-free hydraulic piston and valve area for control, plus a high-pressure nitrogen gas area with a floating piston that adds performance on demand.

Does the KG54312 help with towing and heavier tires?

Yes. This Gas-a-just monotube includes additional damping over the OE design for trucks that work, tow, and run larger, heavier tires and wheels.

Do I need to replace both rear shocks?

Each shock is sold individually, so this listing is for one. Replacing both rear shocks together as a matched pair is recommended for balanced, even control.