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KYBPart # KG5504

Gas-a-just

4.9seller rating (755 reviews)

Fits 1973 Buick Apollo; 1973-1977 Buick Century; 1980-1989 Buick Electra; 1977-1983 Buick Estate Wagon; 1970-1972 Buick GS; 1968-1969 Buick GS 350; 1968-1969 Buick GS 400; 1970-1972 Buick GS 455. Plus 37 more models listed below.

Gas Shock

$83.00

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  • Canadian Owned
Gas-a-just - main product image

KYB KG5504 Vehicle Fitment

Fits 278 vehicles
  • 1987-1989 Pontiac Safari

  • 1980-1986 Pontiac Parisienne

  • 1980-1981 Pontiac Laurentian

  • 1975-1981 Pontiac Bonneville

  • 1975-1977 Pontiac Grand LeMans

  • 1974 Pontiac Parisienne

  • 1973-1975 Pontiac Grand Am

  • 1971-1981 Pontiac Catalina

  • 1971-1978 Pontiac Grand Safari

  • 1971-1974 Pontiac Laurentian

  • 1971-1973 Pontiac Ventura

  • 1971-1972 Pontiac Bonneville

  • 1969-1977 Pontiac Grand Prix

  • 1964-1977 Pontiac LeMans

  • 1964-1973 Pontiac GTO

  • 1964-1970 Pontiac Tempest

KYB KG5504 Specifications

Dust Cover Included
Y
Stroke Length
7.48
Lower Mount Type
E1
Internal Rebound Bumper
N
Upper Mount Type
E3(61.6x87x20)
Internal Rebound Spring
N

KYB KG5504 Product Description

The KYB Gas-a-just monotube shock absorber has additional performance advantages over the traditional twin-tube design: It can instantly, automatically adjust to your performance needs and never experiences fade due to aeration. The KYB Gas-a-just has two separate working chambers: An air-free hydraulic piston and valve area for responsiveness and control, and a second high-pressure nitrogen gas area with a floating piston that provides a comfortable ride during normal driving and adds instant performance on demand.

Key Features

  • Adds up to 25% more damping performance over original equipment shocks
  • Components and valving designed specifically for classic GM cars
  • 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.
  • 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
  • Gas-a-Just monotubes include additional damping over OE design for vehicles that work, tow, and have larger, heavier tires & wheels
  • High pressure monotube design separates the gas and oil for fade free operation and instant response
  • The higher gas pressure of the KYB Gas-a-Just responds quickly to improve steering response

About KYB

Shop KYB Suspension Shock Absorber at Autrex with vehicle fitment details, current pricing, and checkout options for the KYB KG5504. Eligible orders over $99 may qualify for free shipping, with some exceptions.

Seller reviews

What customers say about buying from Autrex โ€” service, shipping and support. These are reviews of the store, not of this specific part.

4.9seller rating (755 reviews)
  • November 2026

    Merci beaucoup!!!! Une prochaine fois je reprendrai vos services!!๐Ÿ‘๐Ÿ‘Œ

  • November 2026
  • November 2026

    I received the tire very fast. Excellent service. Thank you

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Frequently Asked Questions โ€” KYB KG5504

What vehicles does the KYB KG5504 fit?

The KYB KG5504 fits 278 vehicles, including 1991-1996 Buick Roadmaster, 1977-1996 Chevrolet Caprice, 1977-1992 Oldsmobile Custom Cruiser, 1987-1990 Buick LeSabre, 1980-1989 Buick Electra. Check the full fitment list above to confirm your vehicle.

How do I confirm the KYB KG5504 fits my vehicle?

Select your year, make, model and engine in the vehicle selector on this page to see a fit or does-not-fit result for the KYB KG5504. If your vehicle has options that change the part (for example brake package or axle), the result lists the questions to check. A parts specialist can also confirm fitment at 1-866-461-2787.

What are the shipping options for the KYB KG5504?

Shipping options for the KYB KG5504 are shown during checkout and may vary by item, address, and availability. Eligible orders over $99 may qualify for free shipping, with some exceptions. Call 1-866-461-2787 if you need help confirming shipping or pickup before ordering.

How much does the KYB KG5504 cost?

The KYB KG5504 is currently listed at $83.00 CAD at Autrex. Final price, shipping, taxes, and availability are confirmed during checkout. Call 1-866-461-2787 if you need help before ordering.

Is the Gas-a-just a direct fit replacement?

Fit depends on the vehicle and its configuration. Select your vehicle and review the fitment result for the Gas-a-just before ordering.