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KYB KG5559 Gas-a-Just High Pressure Monotube Gas Shock Absorber

(1982-1993 Ford Mustang; 1983-1986 Ford LTD; 1981-1983 Ford Fairmont; 1981-1982 Ford Granada; 1981-1982 Mercury Cougar; 1982-1986 Mercury Capri + 2 more models)

Manufacturer

Picture for manufacturer KYB Suspension

Part Number

KG5559
17 reviews
Sale Price

$25.83

Estimated ship date Saturday, November 21

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Live-in-stock inventory

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Fitment guaranteed

Fitment guaranteed

Product Details

The KYB KG5559 Gas-a-Just is a high-pressure monotube gas shock absorber engineered to deliver superior handling response and fade-free performance compared to conventional twin-tube shock designs. Designed for drivers who demand consistent, on-demand performance without sacrificing everyday ride comfort.

How It Works:

The Gas-a-Just monotube design features two separate working chambers within a single tube housing. The first chamber contains an air-free hydraulic piston and valve assembly that provides precise responsiveness and control. The second chamber houses a high-pressure nitrogen gas charge separated by a floating piston, which delivers a comfortable ride under normal driving conditions while instantly providing enhanced performance response when needed.

Key Features:

  • Monotube design — superior to traditional twin-tube shocks for performance applications
  • High-pressure nitrogen gas charge with floating piston for consistent, aeration-free damping
  • Air-free hydraulic chamber eliminates fade caused by fluid aeration
  • Instant, automatic adjustment to changing road and driving conditions
  • Fade-free performance — maintains consistent damping force under repeated cycling
  • Direct-fit replacement shock for straightforward installation

The KYB Gas-a-Just KG5559 is an ideal upgrade or replacement for performance-minded drivers looking for a shock absorber that rises above OEM-spec twin-tube units in both responsiveness and long-term consistency.

Products specifications

Fits

1982-1993 Ford Mustang; 1983-1986 Ford LTD; 1981-1983 Ford Fairmont; 1981-1982 Ford Granada; 1981-1982 Mercury Cougar; 1982-1986 Mercury Capri; 1983-1986 Mercury Marquis; 1981-1983 Mercury Zephyr

FEATURE AND BENEFIT 1

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

Compressed Length

12.44

Extended Length

20.31

Stroke Length

7.87

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR FORDS, AND MERCURYS

Lower Mount Type

E2(12X53)

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.

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

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

Feature and Benefit 4

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

B-stop

N

R-stop

N

Upper Mount Type

S1

Feature and Benefit 6

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

Dust Cover Included

Y

Internal Rebound Spring

N

easy peasy

Easy to use website. Good price on merchandise. Shipping seems a bit expensive.

N/A

Everything has been pretty easy

It was easy to order the tire.

8+

Quick, easy, came with at least one product review, good description, reasonable product and shipping price. Could have better pictures, that show the whole item, lid included, as well as a picture of the back, with usage instructions, etc., so that those of us who know nothing of guns or gun products, and are getting this item as a gift for someone who does, can be sure to get a more thorough idea of what they're buying.

Easy enough... we'll see if it arrives.

Excellent service and fast shipping. A seller I would do business with again.

Great service

very good low price, had a slight issue but customer service was amazing,. i would recommend AutoPlicity to anyone because of that, good prices, good customer service,. (meaning trust worthy) why not :). A+++ Service will buy from again!

Had exactly what I was looking for at the best price on the net. Shipped next day. Fuel Pressure Regulator was as described and met my needs.

Great price and quick shipping!

Lowest price on the Internet, good packaging and fast shipping.

Excellent service!!!! Ordered another part from one of those big chain stores three days earlier and got your part one day sooner than theirs. Thanks. Excellent customer service. Wouldn't hesitate to use you again.

Great product and speedy service!

Couldn't be more happy with my product. I ordered from Autoplicity because they were the cheapest price around and I received my order within 5 days. I have installed the cold air intake and couldn't believe all the extra power. I am very pleased with the entire transaction.

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