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KYB Suspension 553384 Gas-a-Just Monotube Gas Shock Absorber

(2020-2023 Mercedes-Benz E350; 2015-2021 Mercedes-Benz C300; 2017-2019 Mercedes-Benz E300; 2014-2015 Mercedes-Benz CLA45 AMG + 3 more models)

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

Other options in this family: KYB Suspension KG54328 KYB Suspension KG5498 KYB Suspension 554384 KYB Suspension KG9025 KYB Suspension KG54314

Manufacturer

Picture for manufacturer KYB Suspension

Part Number

553384
11 reviews
Sale Price

$70.40

In Stock (10)

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Usually delivered within 2 days

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Product Details

The KYB Gas-a-Just monotube shock absorber is engineered to restore and enhance your vehicle's performance with advanced gas-charged technology. Designed as a direct OE monotube replacement, this high-pressure shock delivers improved handling, reduced body roll, and enhanced stability under demanding driving conditions.

Advanced Monotube Design:

  • Two separate working chambers for optimal performance and comfort
  • Air-free hydraulic piston and valve area provides precise responsiveness and control
  • High-pressure nitrogen gas chamber with floating piston separates oil from gas to prevent aeration
  • Larger piston diameter than twin-tube designs for improved fade resistance
  • Superior heat dissipation keeps shock cooler during extended use

Performance Benefits:

  • Instant response to changing road conditions for maximum control
  • Reduced body roll during cornering and lane changes
  • Improved stability when towing or hauling heavy loads
  • Comfortable ride quality during normal driving with performance on demand
  • Consistent damping performance across temperature ranges

The Gas-a-Just is ideal for drivers seeking enhanced vehicle control and stability while maintaining everyday drivability. KYB's proven monotube technology delivers professional-grade performance backed by decades of OE and aftermarket expertise.

Products specifications

Fits

2020-2023 Mercedes-Benz E350; 2015-2021 Mercedes-Benz C300; 2017-2019 Mercedes-Benz E300; 2014-2015 Mercedes-Benz CLA45 AMG; 2018 Mercedes-Benz E400; 2019-2023 Mercedes-Benz E450; 2015 Mercedes-Benz C400

FEATURE AND BENEFIT 1

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

Compressed Length

16.53

Extended Length

23.03

Stroke Length

6.5

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR YOUR MERCEDES BENZ

Lower Mount Type

E2(10.2X48)

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

Stroke Length

6.50

Internal Rebound Spring

N

so far so good

Absolute best price on the web, very fast. Definitely ordering Autoplicity in the near future....

Quick response on order and said it would be here in a few days.<br>Would use Autoplicity again.

good

Great price, love those coupons, glad you're using paypal, I'll be looking for more things to buy. Best deal on the internet and brick and mortor stores.

Great price, fast shipping, awesome product!

Autoplicity had the exact part I wanted at the best price upfront with no gimmicks or hidden conditions. Prompt shipping at a fair price. Simply excellent!

As always fast, easy and reliable

Good

It was quick and easy!

I had never heard of Autoplicity prior to this purchase, so I was a little hesitant to order from them. Man I am glad that I did!! Not only did they have the lowest price (by FAR) on the product I was looking for, but it showed up to my doorstep just TWO days after placing my order!! Autoplicity is awesome and will definitely be getting future business from me!!

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