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KYB Suspension KG5558 Gas-a-Just Monotube High Pressure Gas Shock Absorber

(1979-1993 Saab 900; 1979-1980 Saab 99)

Part of: KYB Suspension Gas-a-Just Monotube High Pressure Gas Shock Absorber

Other options in this family: KYB Suspension KG54317 KYB Suspension KG5462 KYB Suspension KG4752 KYB Suspension 554348 KYB Suspension KG5440

Manufacturer

Picture for manufacturer KYB Suspension

Part Number

KG5558
16 reviews
Sale Price

$46.63

In Stock (10)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The KYB Gas-a-Just KG5558 is a high-performance monotube gas shock absorber engineered to deliver superior handling and ride quality. Unlike traditional twin-tube designs, this monotube configuration provides instant response and fade-free performance under all driving conditions.

Key Features:

  • Monotube design with two separate working chambers for optimized performance
  • Air-free hydraulic piston and valve chamber ensures responsive damping control
  • High-pressure nitrogen gas chamber with floating piston technology
  • Instantly adjusts to changing road conditions automatically
  • Fade-free operation eliminates performance loss from aeration
  • Provides comfortable ride quality during normal driving
  • Delivers enhanced control and stability during aggressive driving

The dual-chamber design separates the hydraulic fluid from the high-pressure nitrogen gas, preventing aeration and maintaining consistent damping force. This configuration allows the shock to provide a smooth, controlled ride during everyday driving while instantly delivering performance when you need it most—whether cornering, towing, or hauling heavy loads.

Products specifications

Fits

1979-1993 Saab 900; 1979-1980 Saab 99

FEATURE AND BENEFIT 1

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

Compressed Length

11.69

Extended Length

17.87

Stroke Length

6.18

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR YOUR SAAB

Lower Mount Type

E2(12X50)

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

Dust Cover Included

N

B-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

R-stop

Y

Internal Rebound Spring

N

Part arrived quickly. Just what I ordered and looks great. Should do the job.

Fast and reliable

Very happy with service and product.

The only thing negative I can say is I didn't receive emails stating the item was shipped with a tracking number. I did receive the part quickly so I can complain too much about the lack of emails. I will use Autoplicity again in the future.

Great besides 1 wheel was missing the center cap

Best price but high on SH

very pleased with the service I recieved. shipping was fast, part was perfect. price was half of other dealers. will be using Autoplicity again. thanks

Prices are among the lowest around. Had a change with my order. Customer support team was quick to respond to emails and make corrections. Will order from Autoplicity again.

Excellent store! I found the fuel pump that I was looking for right away and for almost half the cost of competitors. Better yet, the order shipped out that night! I make a lot of online purchases and have grown accustomed to the normal lengthy process but this store knows what they're doing! Great experience overall and I will be sure to buy from them again and spread the word!

Lowest price we could find. Fast shipping. Would do business with them again.

Great prices. Fast Shipping. I would definitely do business again.

So far so good we will see how 2nd day air shipping works. Thanks

Fast shipping , product just as described, and quality product.

There.was a bit of miscommunication between sales and shipping departments, but my order was filled and shipped as stated. Very low price, in fact the lowest on the net, and I did alot of research. Other than the shipping issue, I'm very satisfied and will buy more parts from them soon. Thank you!!!

Nobody else had part in stock. Instant shipping and a good price. Will do business again!

Best place to find good products for cheap. I just got a jet programmer for almost $100 below the normal price. I also appreciate the fact that they gave me a call to make sure I was the one ordering.

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