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KYB Suspension 5550000 Gas-a-just High Pressure Monotube Gas Shock Absorber

(2007-2013 BMW 328i; 2007-2013 BMW 335i; 2006 BMW 325i; 2009-2013 BMW 328i xDrive; 2006 BMW 330i; 2008-2013 BMW 128i; 2009-2011 BMW 335d + 4 more models)

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

5550000
6 reviews
Sale Price

$90.59

In Stock (10+)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The KYB Gas-a-just monotube shock absorber delivers superior performance through advanced engineering that eliminates fade and maximizes responsiveness. Unlike traditional twin-tube designs, this high-pressure gas shock features a monotube configuration that instantly adapts to changing road conditions and driving demands.

Key Features:

  • Monotube design with separate working chambers for optimal performance
  • Air-free hydraulic piston and valve area ensures precise control and responsiveness
  • High-pressure nitrogen gas chamber with floating piston provides consistent damping
  • Fade-free performance eliminates aeration issues common in twin-tube designs
  • Automatically adjusts to deliver comfortable daily driving and instant performance on demand
  • Enhanced heat dissipation through larger surface area monotube body

The Gas-a-just's dual-chamber system separates the hydraulic fluid from the nitrogen gas charge, maintaining optimal damping characteristics under all conditions. The floating piston design prevents gas and oil mixing while allowing the shock to respond immediately to suspension travel, providing both comfort during normal cruising and firm control when performance is needed.

Products specifications

Fits

2007-2013 BMW 328i; 2007-2013 BMW 335i; 2006 BMW 325i; 2009-2013 BMW 328i xDrive; 2006 BMW 330i; 2008-2013 BMW 128i; 2009-2011 BMW 335d; 2008-2013 BMW 135i; 2009-2013 BMW 335i xDrive; 2006 BMW 330xi; 2011-2013 BMW 335is

FEATURE AND BENEFIT 1

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

Compressed Length

15.94

Extended Length

22.04

Stroke Length

6.1

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR BMW 5 SERIES

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

Feature and Benefit 9

PROTECT YOUR NEW STRUTS FROM DIRT, DEBRIS AND SALT WITH A KYB STRUT BOOT, PART NUMBER: SB113

Lower Mount Type

S1(10MM)

Upper Mount Type

S1(10MM)

Feature and Benefit 6

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

Feature and Benefit 8

TO REDUCE THE CHANCE OF NOISE AND VIBRATION KYB RECOMMENDS INSTALLING NEW STRUT MOUNTS, PART NUMBER: SM5767 (LOWER) AND SM5752 (UPPER)

R-stop

Y

Upper Mount Type

S1

Lower Mount Type

S1

Internal Rebound Spring

N

I would like to know the expected date I should receive this order

Fast and easy shopping.

Had a little trouble talking to a rep. Call center could use help. I waited 15 min to be droped. Hope the part i ordered is right.

The best

Got the order faster then expected. Only place i could find it and great price!!!

Great pricing

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