KYB

Gas-A-Just Monotube Shocks

KG54309
$79.99
Discount in Cart

In Stock Estimated Delivery in 3-6 Business Days
KYB

Gas-A-Just Monotube Shocks

KG54309
$79.99
Discount in Cart

In Stock Estimated Delivery in 3-6 Business Days
Authorized dealer
Free shipping on orders above $175 within the lower 48 United States
Brand new parts with warranty coverage
Free 30-day return and exchange on qualifying orders
Got Questions?
Our experts are here to help!
Part Numbers & Details
Package Contains 1 Shock
You'll be getting one shock absorber.
KYB Lifetime Warranty
Manufacturer limited lifetime warranty protects against defects and premature failure.
Factory Hardware for Installation
All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Shock boots sold separately.
Product Highlights
Factory Upgrade for improved handling
Specifications
Part NumberLift/LoweredPositionItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
KG54309FactoryFrontShock Absorber118.07"13.58"4.49"STEMBARPIN
Product Details

The KYB Gas-A-Just shock absorber increases vehicle stability, handling, and control through a monotube shock design. A monotube shock absorber is more responsive to the road and automatically adjusts to driving conditions. The Gas-A-Just shock will give a slightly firmer ride and provide additional control, limiting body roll and nose dive.

Compatibility List
YearMakeModelDrivePosition
2001FordExplorerFront
2000FordExplorerFront
1999FordExplorerFront
1998FordExplorerFront
1997FordExplorerFront
1996FordExplorerFront
1995FordExplorerFront
2003FordExplorer SportFront
2002FordExplorer SportFront
2001FordExplorer SportFront
2005FordExplorer Sport TracFront
2004FordExplorer Sport TracFront
2003FordExplorer Sport TracFront
2002FordExplorer Sport TracFront
2001FordExplorer Sport TracFront
2011FordRanger4WDFront
2010FordRanger4WDFront
2009FordRanger4WDFront
2008FordRanger4WDFront
2007FordRanger4WDFront
2006FordRanger4WDFront
2005FordRanger4WDFront
2004FordRanger4WDFront
2003FordRanger4WDFront
2002FordRanger4WDFront
2001FordRanger4WDFront
2000FordRanger4WDFront
1999FordRanger4WDFront
1998FordRanger4WDFront
2011FordRangerRWDFront
2010FordRangerRWDFront
2009FordRangerRWDFront
2008FordRangerRWDFront
2007FordRangerRWDFront
2006FordRangerRWDFront
2005FordRangerRWDFront
2004FordRangerRWDFront
2003FordRangerRWDFront
2002FordRangerRWDFront
2001FordRangerRWDFront
2002MazdaB30004WDFront
2001MazdaB30004WDFront
2000MazdaB30004WDFront
1999MazdaB30004WDFront
1998MazdaB30004WDFront
2007MazdaB3000RWDFront
2006MazdaB3000RWDFront
2005MazdaB3000RWDFront
2004MazdaB3000RWDFront
2003MazdaB3000RWDFront
2002MazdaB3000RWDFront
2001MazdaB3000RWDFront
2009MazdaB40004WDFront
2008MazdaB40004WDFront
2007MazdaB40004WDFront
2006MazdaB40004WDFront
2005MazdaB40004WDFront
2004MazdaB40004WDFront
2003MazdaB40004WDFront
2002MazdaB40004WDFront
2001MazdaB40004WDFront
2000MazdaB40004WDFront
1999MazdaB40004WDFront
1998MazdaB40004WDFront
2006MazdaB4000RWDFront
2005MazdaB4000RWDFront
2004MazdaB4000RWDFront
2003MazdaB4000RWDFront
2002MazdaB4000RWDFront
2001MazdaB4000RWDFront
2001MercuryMountaineerFront
2000MercuryMountaineerFront
1999MercuryMountaineerFront
1998MercuryMountaineerFront
1997MercuryMountaineerFront

Shock Surplus handles KYB's warranty claims; if you encounter a product defect please submit a warranty claim.

View KYB Warranty Information

For more information: View the Shock Surplus Warranty Policy.

Shipping Info

Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

  • Applies to items like axles, leaf springs, and long-travel kits.
  • No international shipping on freight items — only to U.S.-based freight forwarders.
  • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

Contact us for an international shipping quote.

Returns & Exchanges

30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

  • No restocking fees for exchanges or gift card credit.
  • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
  • Installed, damaged, or dirty parts cannot be returned.
  • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

Need help? Use Live Chat or Email Us anytime.

Start a Return or Exchange

Return Shipping Responsibility

CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

  • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
  • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

  • Under 50 lbs: Discounted carrier rate
  • Over 50 lbs: Discounted carrier rate + $25 oversize fee

Refunds

Refunds are issued within 5–7 business days of receiving your return.

  • Funds typically post to your account in 1–3 business days depending on your payment method.
  • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
  • You will receive an email once your refund is processed.

International Orders

  • All international orders are final sale.
  • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
  • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
  • We are not responsible for goods once exported outside the U.S.

Product Details

Whether you want to upgrade, add a reservoir, or find something more affordable, contact us with any questions!

Part Numbers & Details

View full product specifications

Close specs
Part Numbers & Details
Package Contains 1 Shock
You'll be getting one shock absorber.
KYB Lifetime Warranty
Manufacturer limited lifetime warranty protects against defects and premature failure.
Factory Hardware for Installation
All necessary washers, bushings, and nuts included. Factory shock mounting bolts are reused for installation. Shock boots sold separately.
Product Highlights
Factory Upgrade for improved handling
Specifications
Part NumberLift/LoweredPositionItemQuantityExtended LengthCompressed LengthTravelTop MountBottom Mount
KG54309FactoryFrontShock Absorber118.07"13.58"4.49"STEMBARPIN
Product Details

The KYB Gas-A-Just shock absorber increases vehicle stability, handling, and control through a monotube shock design. A monotube shock absorber is more responsive to the road and automatically adjusts to driving conditions. The Gas-A-Just shock will give a slightly firmer ride and provide additional control, limiting body roll and nose dive.

Compatibility List
YearMakeModelDrivePosition
2001FordExplorerFront
2000FordExplorerFront
1999FordExplorerFront
1998FordExplorerFront
1997FordExplorerFront
1996FordExplorerFront
1995FordExplorerFront
2003FordExplorer SportFront
2002FordExplorer SportFront
2001FordExplorer SportFront
2005FordExplorer Sport TracFront
2004FordExplorer Sport TracFront
2003FordExplorer Sport TracFront
2002FordExplorer Sport TracFront
2001FordExplorer Sport TracFront
2011FordRanger4WDFront
2010FordRanger4WDFront
2009FordRanger4WDFront
2008FordRanger4WDFront
2007FordRanger4WDFront
2006FordRanger4WDFront
2005FordRanger4WDFront
2004FordRanger4WDFront
2003FordRanger4WDFront
2002FordRanger4WDFront
2001FordRanger4WDFront
2000FordRanger4WDFront
1999FordRanger4WDFront
1998FordRanger4WDFront
2011FordRangerRWDFront
2010FordRangerRWDFront
2009FordRangerRWDFront
2008FordRangerRWDFront
2007FordRangerRWDFront
2006FordRangerRWDFront
2005FordRangerRWDFront
2004FordRangerRWDFront
2003FordRangerRWDFront
2002FordRangerRWDFront
2001FordRangerRWDFront
2002MazdaB30004WDFront
2001MazdaB30004WDFront
2000MazdaB30004WDFront
1999MazdaB30004WDFront
1998MazdaB30004WDFront
2007MazdaB3000RWDFront
2006MazdaB3000RWDFront
2005MazdaB3000RWDFront
2004MazdaB3000RWDFront
2003MazdaB3000RWDFront
2002MazdaB3000RWDFront
2001MazdaB3000RWDFront
2009MazdaB40004WDFront
2008MazdaB40004WDFront
2007MazdaB40004WDFront
2006MazdaB40004WDFront
2005MazdaB40004WDFront
2004MazdaB40004WDFront
2003MazdaB40004WDFront
2002MazdaB40004WDFront
2001MazdaB40004WDFront
2000MazdaB40004WDFront
1999MazdaB40004WDFront
1998MazdaB40004WDFront
2006MazdaB4000RWDFront
2005MazdaB4000RWDFront
2004MazdaB4000RWDFront
2003MazdaB4000RWDFront
2002MazdaB4000RWDFront
2001MazdaB4000RWDFront
2001MercuryMountaineerFront
2000MercuryMountaineerFront
1999MercuryMountaineerFront
1998MercuryMountaineerFront
1997MercuryMountaineerFront
Warranty

View warranty coverage

Close specs

Shock Surplus handles KYB's warranty claims; if you encounter a product defect please submit a warranty claim.

View KYB Warranty Information

For more information: View the Shock Surplus Warranty Policy.

Shipping & Returns

Free shipping within the lower 48 United States

Close specs

Shipping Info

Free Shipping on most orders to the lower 48 U.S. states. Truck freight items (over 100 lbs) and custom orders require a separate shipping quote.

  • Applies to items like axles, leaf springs, and long-travel kits.
  • No international shipping on freight items — only to U.S.-based freight forwarders.
  • Worldwide shipping available: Canada, Europe, UAE, Australia, and most of Asia.

Contact us for an international shipping quote.

Returns & Exchanges

30-Day Return Policy — Items must be new, unused, uninstalled, and include all original hardware.

  • No restocking fees for exchanges or gift card credit.
  • 10% restocking fee on refunds, returns cost us real money, so the 10% helps keep the lights on.
  • Installed, damaged, or dirty parts cannot be returned.
  • Any returns missing hardware or miscellaneous items, the return will be denied and returned to the buyer at the buyer's expense.

Need help? Use Live Chat or Email Us anytime.

Start a Return or Exchange

Return Shipping Responsibility

CHECKOUT+ Package and Order Protection plan provides prepaid return labels for any returned packages, this fee varies by product.

  • Our mistake (misboxed, wrong item, damaged): We cover the cost of return shipping.
  • Buyer mistake (wrong item ordered, fitment error, changed mind): Return shipping is the buyer's responsibility - unless CHECKOUT+ Package Protection has been purchased.

  • Under 50 lbs: Discounted carrier rate
  • Over 50 lbs: Discounted carrier rate + $25 oversize fee

Refunds

Refunds are issued within 5–7 business days of receiving your return.

  • Funds typically post to your account in 1–3 business days depending on your payment method.
  • There is a 10% restocking fee on all refunds. We don’t get our original shipping, labor, or transaction fees back — so the 10% restocking fee keeps the lights on.
  • You will receive an email once your refund is processed.

International Orders

  • All international orders are final sale.
  • Returns via freight forwarders only accepted if the product hasn’t left the U.S.
  • Import taxes, duties, and other possible import-related fees are the buyer’s responsibility and not included in our shipping charges.
  • We are not responsible for goods once exported outside the U.S.

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