My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

KYB Suspension 5540018 Gas-a-Just Monotube Gas Shock Absorber

(2017-2020 Ford F-250 Super Duty; 2017-2022 Ford F-350 Super Duty)

Manufacturer

Part Number

5540018
Sale Price

$66.40

4 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The KYB Gas-a-Just 5540018 is a high-pressure monotube gas shock absorber engineered to deliver superior performance and fade-free operation. Unlike traditional twin-tube designs, this monotube shock features advanced technology that instantly adapts to changing driving conditions for optimal control and comfort.

Key Features:

  • High-pressure monotube design eliminates fade caused by aeration
  • Dual-chamber construction with separate hydraulic and nitrogen gas chambers
  • Air-free hydraulic piston and valve area ensures consistent responsiveness
  • High-pressure nitrogen gas chamber with floating piston technology
  • Automatically adjusts to deliver comfort during normal driving and performance on demand
  • Provides superior damping control compared to twin-tube designs

The Gas-a-Just design separates the hydraulic fluid from the high-pressure nitrogen gas using a floating piston, preventing aeration and maintaining consistent damping characteristics under all driving conditions. This makes it an ideal upgrade for drivers seeking improved handling, reduced body roll, and enhanced vehicle stability without sacrificing ride comfort.

Products specifications

Fits

2017-2020 Ford F-250 Super Duty; 2017-2022 Ford F-350 Super Duty

Feature and Benefit 4

HIGH PRESSURE MONOTUBE DESIGN SEPARATES THE GAS AND OIL FOR FADE FREE OPERATION AND INSTANT RESPONSE

Extended Length

30.62

Stroke Length

12

Dust Cover Included

Y

Lower Mount Type

E2(14.2X38)

Feature and Benefit 3

GAS-A-JUST MONOTUBES INCLUDE ADDITIONAL DAMPING OVER OE DESIGN FOR VEHICLES THAT WORK, TOW, AND HAVE LARGER, HEAVIER TIRES & WHEELS

B-stop

N

Feature and Benefit 7

ELECTRONIC SAFETY SYSTEMS DEPEND ON THE SUSPENSION, BRAKES AND TIRES OPERATING AS THE VEHICLE MANUFACTURER INTENDED. THE KYB GAS-A-JUST HELPS KEEP ELECTRONIC SAFETY SYSTEMS PERFORMING AS DESIGNED.

R-stop

N

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR SUPER DUTY FORD TRUCKS

Internal Rebound Spring

N

Compressed Length

18.62

Feature and Benefit 6

THE HIGHER GAS PRESSURE OF THE KYB GAS-A-JUST RESPONDS QUICKLY TO IMPROVE STEERING RESPONSE

Feature and Benefit 5

FLUID LEAKING CAN BE A CAUSE OF SHOCK FAILURE, THE KYB GAS-A-JUST HAS AN ULTRA-SMOOTH TRIPLE CHROME PLATED CHROME PISTON ROD TO REDUCE SEAL WEAR

Upper Mount Type

E1

FEATURE AND BENEFIT 1

ADDS UP TO 25% MORE DAMPING PERFORMANCE OVER ORIGINAL EQUIPMENT SHOCKS

was fast check out

great!

easy way to get parts

Good price, in stock well packaged

great

I bought something

fast and easy transaction, thanks

Best pricing I have found.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy