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KYB Suspension KG54339 Gas-a-Just Monotube High Pressure Gas Shock Absorber

(Chevrolet Silverado 1500 2004-06, Silverado 1500 HD 2001-02, Silverado 2500 1999-2004, Suburban 2500 2000-01, Silverado 1500 Classic 2007 + 5 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

KG54339
11 reviews
Sale Price

$69.23

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 monotube shock absorber delivers superior performance and handling by combining advanced monotube technology with high-pressure nitrogen gas. Designed as an OE replacement, this shock restores and enhances your vehicle's original handling capabilities while providing instant performance on demand.

Key Features:

  • Monotube design with two separate working chambers for optimal performance
  • Air-free hydraulic piston and valve area ensures immediate responsiveness and precise control
  • High-pressure nitrogen gas chamber with floating piston technology
  • Provides comfortable ride quality during normal driving conditions
  • Instant performance enhancement during aggressive driving or heavy loads
  • Direct OE replacement fitment for easy installation
  • Reduces body roll, dive, and squat for improved vehicle stability

The Gas-a-Just design separates the hydraulic fluid from the nitrogen gas using a floating piston, eliminating aeration and foam buildup that can reduce shock performance. This configuration delivers consistent damping force and fade-free performance, making it an excellent upgrade for drivers seeking improved handling without sacrificing ride comfort.

Products specifications

Fits

Chevrolet Silverado 1500 2004-06, Silverado 1500 HD 2001-02, Silverado 2500 1999-2004, Suburban 2500 2000-01, Silverado 1500 Classic 2007; GMC Sierra 1500 2004-06, Sierra 2500 1999-2004, Yukon XL 2500 2000-01, Sierra 1500 HD 2001-03 + 1 more models

FEATURE AND BENEFIT 1

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

Compressed Length

10.23

Extended Length

14.96

Stroke Length

4.72

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR GM TRUCKS

Lower Mount Type

E3(51.6X87X14)

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

Was easy

Great product. Great delivery time. Worked great on the track to shield from the sun. Glad delivery was free.

Helmet is as described and fits fine, however, it's so huge I cannot use it in the car as intended. Some reviews call it "Marvin the Martian" looking. This is generous. It's more like Marvin the Martian on steroids. Will need to return and look locally for a helmet.

good results

Had what I needed for a great price and a friendly website.

This is a very nice site to use, fast turn around time on the orders. They sent a 20% shipping discount after my first order but I was not given an opportunity to use the discount code during checkout of the second order.

So far so good. Great prices and availability. Still must wait to see the delivery and product

Great price, good shipping options

Great prices

Autoplicity has the cheapest prices around and fast shipping. I will do business with them again in the future.

Item arrived promptly (4 days after order), price was good and item was as described.

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