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KYB Suspension 554356 Gas-a-Just High Pressure Monotube Gas Shock Absorber

(2003-2025 Chevrolet Express 3500; 2003-2025 Chevrolet Express 2500; 2003-2025 GMC Savana 2500; 2003-2025 GMC Savana 3500)

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

554356
15 reviews
Sale Price

$69.18

2 left at this price

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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 554356 is a high-performance monotube gas shock absorber engineered to deliver superior handling and ride quality. Unlike traditional twin-tube designs, this monotube shock features a single-tube construction that provides instant response and consistent performance without fade, even under demanding driving conditions.

Advanced Monotube Design:

  • Dual-chamber construction with separate hydraulic and gas chambers for optimal performance
  • Air-free hydraulic piston and valve area ensures responsive damping control
  • High-pressure nitrogen gas chamber with floating piston automatically adjusts to driving demands
  • Eliminates shock fade caused by aeration that affects twin-tube designs
  • Maintains consistent damping performance during aggressive driving and heavy loads

Performance Benefits:

  • Instantly adapts to changing road conditions and driving styles
  • Provides firmer, more controlled handling during spirited driving
  • Delivers comfortable ride quality during normal cruising
  • Reduces body roll, brake dive, and acceleration squat
  • Ideal for vehicles that tow, haul, or require enhanced handling characteristics

The Gas-a-Just monotube shock is a direct-fit replacement that restores and improves your vehicle's suspension performance. The high-pressure gas charge and monotube design make this shock an excellent choice for drivers seeking a balance between daily drivability and on-demand performance.

Products specifications

Fits

2003-2025 Chevrolet Express 3500; 2003-2025 Chevrolet Express 2500; 2003-2025 GMC Savana 2500; 2003-2025 GMC Savana 3500

FEATURE AND BENEFIT 1

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

Extended Length

14.21

Stroke Length

4.49

Compressed Length

9.72

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR GM VANS

Lower Mount Type

E3(51.6X87X15)

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

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

R-stop

Y

Internal Rebound Spring

N

Great service site easy to navigate and parts easy to find great place to shop.

The photo showed with pads but when received no pads later I read the detail info on rotors which didn't mention pads then I new it was only rotors.

Ordered a dog harness. It was well made fit great and came within a week

Thank you

Better price

Great online shopping experience. Smooth and easy transaction and shipping was fast. I look forward to doing more business with you guys in the future. Thank you!

Quick and easy and great prices, as always.

Super Fast! Website was easy to user, multiple different payment options (Amazon, Paypal, Credit Card) Got a notification of shipment within 1 hour!

Great service, awesome prices, incredibly fast shipping. A++ I would absolutely suggest you to my friends and family

quick response and unbelievably CHEAP prices.

Excellent service, quick ship. An easy transaction.

Ordered a set of 5 steel wheels, distributor messed up and only sent me 4. 5th wheel is taking a good couple weeks to arrive due to the distributor messing up the shipment. Autoplicity did make things right and I can honestly say now I would recommend them.

- Updated review -<br>Autoplicity.com contacted me after my original review and admitted to making a mistake with my order. They have refunded my shipping and I am happy now.<br><br>- Original review -<br>After 18 days the part finally arrived. The filter appears to have been sent directly from K&N, but I ordered on the 20th of June, yet the packing date that K&N Engineering Inc. shows is July 3rd.

Very pleased with Autoplicity's fast and efficient service. The part I ordered fit and looked great. Will definitely consider Autoplicity for future orders. Thanks.

Great Prices, fast shipping. Will be using again!

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