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KYB Suspension 553239 Gas-a-Just Monotube Performance Shock Absorber

(BMW 328i 1996-2000, 325i 1992-95, 2001-05, 330i 2001-05, 330Ci 2001-06, 320i 1993-95, 325Ci 2001-06, 323i 1998-2000, 318i 1992-98, 325is 1992-95 + 5 more models)

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

Other options in this family: KYB Suspension 551108 KYB Suspension KG4605A KYB Suspension 551119 KYB Suspension KG4503 KYB Suspension 551122

Manufacturer

Picture for manufacturer KYB Suspension

Part Number

553239
13 reviews
Sale Price

$24.50

1 left at this price

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Usually delivered within 2 days

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Product Details

The KYB Gas-a-Just 553239 is a high-pressure monotube shock absorber engineered to deliver superior performance and instant responsiveness for demanding driving conditions. Its advanced monotube design provides significant advantages over traditional twin-tube shocks, including instant automatic adjustment to changing road conditions and fade-free performance that eliminates aeration issues.

Key Features:

  • High-pressure monotube design with separate working chambers for optimal performance
  • Air-free hydraulic piston and valve area ensures immediate response and precise control
  • Secondary nitrogen gas chamber with floating piston provides adaptive damping
  • Fade-resistant performance maintains consistent damping under demanding conditions
  • Delivers comfort during normal driving with instant performance capability when needed
  • Ideal for performance upgrades and European vehicle applications
  • Can replace OE monotube shocks or upgrade twin-tube suspension systems

The Gas-a-Just's dual-chamber design separates the hydraulic fluid from the high-pressure nitrogen gas using a floating piston, preventing fluid aeration while maintaining optimal damping characteristics. This configuration provides spirited drivers with the control and responsiveness they demand without sacrificing everyday ride comfort.

Products specifications

Fits

BMW 328i 1996-2000, 325i 1992-95, 2001-05, 330i 2001-05, 330Ci 2001-06, 320i 1993-95, 325Ci 2001-06, 323i 1998-2000, 318i 1992-98, 325is 1992-95, 318is 1992-98, 323Ci 2000, 328is 1996-99, 323is 1998-99, 328Ci 2000

FEATURE AND BENEFIT 1

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

Compressed Length

14.76

Extended Length

23.97

Stroke Length

9.21

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR THE BMW 3 SERIES

Lower Mount Type

E2(12X41)

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: SB107

Upper Mount Type

S1

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: SM5530

R-stop

Y

Internal Rebound Spring

N

N

Very easy to place order!

Great customer service and fast shipping thank you!

So far it's great. Fast and easy to use and price and shipping were very good.

So far so good

Nice product for the price.

Good fast shipping. Easy ordering.

I recently ordered 2 Borla Dual Round Intercooled Tips from Autoplicity.com for one reason and reason only...their prices can not be beat! No where else online can anyone match them! <br>

Good

I am glad I found Autoplicity! Great prices, fast shipping, and excellent customer service. Already looking at other items to purchase from them. I highly recommend using Autoplicity!

I have to say I was skeptical at first because autoplicity's price beat everyone by so much! Then I estimated my shipping charges with their system and that too was real cheap for this heavy item I ordered! I ordered it on Sunday and it showed up on Tuesday afternoon! So exceptional pricing meets exceptional shipping and my item is the real thing for a lot less leaves me completely satisfied with this company! I will be recommending them to my friends and family, thanks!

Very satisfied. Good price and quick delivery.

The price is right but shipping cost is high. I bought a transmission seal for $12.91 and shipping was $13.31. The box it shipped in was about 10 times bigger than the part itself. Reduce the box and reduce my shipping cost please ! Else than that the part was in good condition, it was packed right and shipping time was reasonable.

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