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KYB Suspension KG4159 Gas-a-Just Monotube High Pressure Gas Shock Absorber

(2004-2009 Dodge Durango; 2007-2009 Chrysler Aspen Limited)

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

KG4159
16 reviews
Sale Price

$73.57

In Stock (10+)

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Usually delivered within 2 days

free shipping

FREE SHIPPING

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The KYB Gas-a-Just KG4159 is a high-performance monotube gas shock absorber engineered to deliver superior handling and fade-free performance. Unlike traditional twin-tube designs, this monotube shock can be used as either a direct OE replacement or as a performance upgrade over factory twin-tube shocks.

Advanced Monotube Design:

  • Dual-chamber construction with separate hydraulic and gas chambers for optimal performance
  • Air-free hydraulic piston and valve area ensures instant responsiveness and precise control
  • High-pressure nitrogen gas chamber with floating piston provides consistent damping
  • Eliminates performance fade caused by aeration during demanding driving conditions
  • Automatically adjusts to performance needs for both comfort and control

Performance Benefits:

  • Superior heat dissipation compared to twin-tube designs maintains consistent damping
  • Enhanced vehicle stability during aggressive cornering and braking
  • Comfortable ride quality during normal driving with instant performance on demand
  • Reduced body roll and improved steering response

The KYB Gas-a-Just KG4159 is ideal for drivers seeking improved handling and performance without sacrificing ride comfort. The monotube design provides professional-grade damping characteristics typically found in racing applications, now available for street use.

Products specifications

Fits

2004-2009 Dodge Durango; 2007-2009 Chrysler Aspen Limited

Compressed Length

15.11

Extended Length

23.89

Stroke Length

8.78

Lower Mount Type

E2(12X41)

Upper Mount Type

E2(12X47)

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 ARE DESIGNED 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

FEATURE AND BENEFIT 1

THE CORRECT, MONOTUBE-DESIGNED OEM REPLACEMENT

Feature and Benefit 6

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

Feature and Benefit 2

THE KYB GAS-A-JUST HELPS RESTORE THE DESIGNED CONTROL AND HANDLING OF THE ASPEN AND DURANGO

Dust Cover Included

Y

R-stop

Y

Internal Rebound Spring

N

free shipping is a big plus,thanks

X

The rims we bought look 10X better in person than the picture online ( pictures do them no justice) . They got here with very fast delivery and very very good condition

The product was a perfect fit!

GOOD PRODUCT VERY FAST SHIPPING

Order was fast and easy

jkl

Website was easy to navigate and gave good details about the product with an appreciated option to do a vehicle fit varificayion before buying. Unfortunately the part I was buying increase in price $14 between the time I started looking and the time I bought. Oh well - snooze you loose.

Fantástico

So far everything looks good no problems on my end.

So Far so good - order placed.

great price easy checkout Super fast delivery.

very smooth and efficient web site.

Good pricing, simple and straight forward navigation of the website . The haven't installed the part from Moog but looks of great quality. I'm very satisfied with everything. Thank you!

Have not recieved order yet, but price was good. Will see how long it takes and if I get the right product. Writing this review before arrivial.

Fantastic place to buy from. They had the best price for K&N oil filters for my motorbikes which was good enough. Then I ordered on a Saturday via normal shipping...got it Tuesday morning! Definitely going to order more in the future.

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