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KYB Suspension KG5421 Gas-a-Just Monotube High Pressure Gas Shock Absorber

(1976-1979 Ford F-150; 1977-1979 Ford F-250; 1979 Ford F-350; 1970-1976 Ford F-100; 1975-1991 Ford E-350 Econoline + 3 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

KG5421
12 reviews
Sale Price

$44.06

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 KG5421 is a high-performance monotube gas shock absorber engineered to deliver superior handling and control compared to traditional twin-tube designs. This monotube construction provides instant, automatic adjustment to changing driving conditions while eliminating performance fade caused by aeration.

Key Features:

  • Monotube design with two separate working chambers for optimal performance
  • Air-free hydraulic piston and valve chamber ensures consistent responsiveness and precise control
  • High-pressure nitrogen gas chamber with floating piston separates oil and gas
  • Automatic adjustment responds instantly to performance demands
  • Fade-free operation eliminates aeration issues common in twin-tube shocks
  • Comfortable ride quality during normal driving with on-demand performance capability
  • Ideal for vehicles requiring improved handling and stability

The Gas-a-Just monotube technology delivers the perfect balance between everyday comfort and aggressive performance. The nitrogen gas pressurization keeps the oil and gas separated, maintaining consistent damping characteristics under all driving conditions. Whether you're navigating daily commutes or tackling spirited driving, the KG5421 provides the control and reliability you need.

Products specifications

Fits

1976-1979 Ford F-150; 1977-1979 Ford F-250; 1979 Ford F-350; 1970-1976 Ford F-100; 1975-1991 Ford E-350 Econoline; 1975-1991 Ford E-250 Econoline; 1977-1991 Ford E-350 Econoline Club Wagon; 1975-1991 Ford E-250 Econoline Club Wagon

FEATURE AND BENEFIT 1

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

Compressed Length

14.37

Extended Length

23.11

Stroke Length

8.74

Feature and Benefit 2

COMPONENTS AND VALVING DESIGNED SPECIFICALLY FOR FORD TRUCKS

Lower Mount Type

E2(12.8X38)

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

Very good price and in stock availability!

It was good

My radiator arrived in perfect condition.

Best price for exact same tires.

Lowest pricing on the internet, was very easy and PayPal pay worked perfectly.

Quick and easy

Great delivery and product

Great price, easy checkout. Hope the rest of the experience goes well.

quick and easy

I was shopping for a bed cover for my truck and found that autoplicity had the lowest price when I was ready to buy. After I placed the order, I got an email notifying me that my order was shipped and got a tracking number. Seamless transaction so far. Very happy.

No hassle ordering and fast quality shipping at a reasonable price

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

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