Brands Vehicles
Lowest Prices
Free Returns
Online Since 2009
JOIN GEARS TO SAVE 5%
Shop All Brands Shop All Vehicles

  2. Auto Parts
  3. Suspension
  4. Shocks and Struts
  5. Shock Absorber
  6. KYB KG54309

KYB KG54309 Shock Absorber

KYB KG54309 Shock Absorber Image 1
KYB KG54309 Shock Absorber Image 2
KYB KG54309 Shock Absorber

KYB
Brand:KYB
Part Number: KG54309
UPC: 781552543091
Weight: 4.02 lbs
Condition:New



On Sale:

$48.15

Availability:
16 in Stock
Warehouse: US-1
Quantity:

Product Information

Description:

Get the KYB KG54309 Shock Absorber for your vehicle. Buy now and secure your purchase online!

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.

Features and Benefits:

  • Adds up to 25% more damping performance over original equipment shocks
  • Components and valving designed specifically for Ford trucks
  • 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

Specifications:

Compressed Length:
13.58
Dust Cover Included:
Y
Extended Length:
18.07
Includes Bump Stop:
N
Internal Rebound Spring:
N
Lower Mount Type:
E3(53.6x78x20)
Stroke Length:
4.49
Upper Mount Type:
S1
Ford #:
1L2Z18124EA
Ford #:
1L5Z18124GA
Ford #:
8L5Z18124AJ
Ford #:
8L5Z18124AK
Ford #:
9L5Z18124A
Ford #:
F5TZ18124A
Gabriel #:
77678
Monroe Shocks & Struts #:
37122
Country of Origin:
MY

Select a vehicle to narrow KYB KG54309 Shock Absorber fitment info!

Last Updated: 07/16/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2001

 

2000

 

1999

 

1998

 

1997

 

2001

 

2000

 

1999

 

1998

 

1997

 
Ford Explorer

4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Exc. Adjustable Suspension )
 

Ford Explorer



4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
(Exc. Adjustable Suspension )

2 Per Vehicle

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 

2001

 

2000

 

1999

 

1998

 

1997

 

1996

 
Ford Explorer

5.0L V8 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Exc. Adjustable Suspension )
 

Ford Explorer



5.0L V8 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
(Exc. Adjustable Suspension )

2 Per Vehicle

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 

2000

 

1999

 

1998

 

1997

 

1996

 

1995

 
Ford Explorer

4.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Exc. Adjustable Suspension )
 

Ford Explorer



4.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
(Exc. Adjustable Suspension )

2 Per Vehicle

2003

 

2002

 

2001

 

2003

 

2002

 

2001

 
Ford Explorer Sport

4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
2 Doors
 

Ford Explorer Sport



4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
2 Doors

2 Per Vehicle

2005

 

2004

 

2005

 

2004

 
Ford Explorer Sport Trac

4.0L V6 Flex SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
 

Ford Explorer Sport Trac



4.0L V6 Flex SOHC

Front Gas-a-just
Monotube Performance Upgrade

2 Per Vehicle

2005

 

2004

 

2003

 

2002

 

2001

 

2005

 

2004

 

2003

 

2002

 

2001

 
Ford Explorer Sport Trac

4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
 

Ford Explorer Sport Trac



4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade

2 Per Vehicle

2011

 

2010

 

2011

 

2010

 
Ford Ranger

2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
4WD
 

Ford Ranger



2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
4WD

2 Per Vehicle

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2011

 

2010

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Ford Ranger

2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD
 

Ford Ranger



2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 
Ford Ranger

2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Recommended OEM Replacement
(Except High Ryder Option)
w/ FX4 Bilstein Suspension
4WD
 

Ford Ranger



2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC

Front Gas-a-just
Recommended OEM Replacement
(Except High Ryder Option)
w/ FX4 Bilstein Suspension
4WD

2 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Ford Ranger

2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD
 

Ford Ranger



2.3L L4 Gas DOHC,
4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD

2 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 
Ford Ranger

3.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Recommended OEM Replacement
(Except High Ryder Option)
w/ FX4 Bilstein Suspension
4WD
 

Ford Ranger



3.0L V6 Gas OHV

Front Gas-a-just
Recommended OEM Replacement
(Except High Ryder Option)
w/ FX4 Bilstein Suspension
4WD

2 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 
Ford Ranger

3.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD
 

Ford Ranger



3.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD

2 Per Vehicle

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

1998

 
Ford Ranger

3.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD
 

Ford Ranger



3.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2004

 

2003

 

2002

 

2004

 

2003

 

2002

 
Ford Ranger

3.0L V6 Flex OHV
2
 
Front
 
Gas-a-just
Recommended OEM Replacement
(Except High Ryder Option)
w/ FX4 Bilstein Suspension
4WD
 

Ford Ranger



3.0L V6 Flex OHV

Front Gas-a-just
Recommended OEM Replacement
(Except High Ryder Option)
w/ FX4 Bilstein Suspension
4WD

2 Per Vehicle

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 
Ford Ranger

3.0L V6 Flex OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD
 

Ford Ranger



3.0L V6 Flex OHV

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD

2 Per Vehicle

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 

2004

 

2003

 

2002

 

2001

 

2000

 

1999

 
Ford Ranger

3.0L V6 Flex OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD
 

Ford Ranger



3.0L V6 Flex OHV

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2002

 

2001

 

2000

 

1999

 

1998

 

2002

 

2001

 

2000

 

1999

 

1998

 
Ford Ranger

-L BATTERY EV EV/BEV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD
 

Ford Ranger



-L BATTERY EV EV/BEV

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2001

 

2000

 

1999

 

1998

 

2001

 

2000

 

1999

 

1998

 
Ford Ranger

2.5L L4 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD
 

Ford Ranger



2.5L L4 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD

2 Per Vehicle

2001

 

2000

 

1999

 

1998

 

2001

 

2000

 

1999

 

1998

 
Ford Ranger

2.5L L4 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD
 

Ford Ranger



2.5L L4 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Ford Ranger

4.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD
 

Ford Ranger



4.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
(Exc. FX4 w/ Monotube Shock)
4WD

2 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Ford Ranger

4.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD
 

Ford Ranger



4.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
(Except High Ryder Option)
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Mazda B3000

3.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
w/ Torsion Bar Front Suspension
RWD
 

Mazda B3000



3.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2003

 

2002

 

2001

 

2003

 

2002

 

2001

 
Mazda B3000

3.0L V6 Flex OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
w/ Torsion Bar Front Suspension
RWD
 

Mazda B3000



3.0L V6 Flex OHV

Front Gas-a-just
Monotube Performance Upgrade
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2002

 

2001

 

2002

 

2001

 
Mazda B3000

3.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
4WD
 

Mazda B3000



3.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
4WD

2 Per Vehicle

2002

 

2001

 

2000

 

1999

 

2002

 

2001

 

2000

 

1999

 
Mazda B3000

3.0L V6 Flex OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
4WD
 

Mazda B3000



3.0L V6 Flex OHV

Front Gas-a-just
Monotube Performance Upgrade
4WD

2 Per Vehicle

1999

 

1998

 

1999

 

1998

 
Mazda B3000

3.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
4WD
 

Mazda B3000



3.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
4WD

2 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 

2009

 

2008

 

2007

 

2006

 

2005

 

2004

 

2003

 

2002

 

2001

 
Mazda B4000

4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
4WD
 

Mazda B4000



4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
4WD

2 Per Vehicle

2004

 

2003

 

2002

 

2001

 

2004

 

2003

 

2002

 

2001

 
Mazda B4000

4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
w/ Torsion Bar Front Suspension
RWD
 

Mazda B4000



4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
w/ Torsion Bar Front Suspension
RWD

2 Per Vehicle

2000

 

1999

 

1998

 

2000

 

1999

 

1998

 
Mazda B4000

4.0L V6 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
4WD
 

Mazda B4000



4.0L V6 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
4WD

2 Per Vehicle

2001

 

2000

 

1999

 

1998

 

2001

 

2000

 

1999

 

1998

 
Mercury Mountaineer

4.0L V6 Gas SOHC
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except Electronic Adjustable Suspension)
 

Mercury Mountaineer



4.0L V6 Gas SOHC

Front Gas-a-just
Monotube Performance Upgrade
(Except Electronic Adjustable Suspension)

2 Per Vehicle

2001

 

2000

 

1999

 

1998

 

1997

 

2001

 

2000

 

1999

 

1998

 

1997

 
Mercury Mountaineer

5.0L V8 Gas OHV
2
 
Front
 
Gas-a-just
Monotube Performance Upgrade
(Except Electronic Adjustable Suspension)
 

Mercury Mountaineer



5.0L V8 Gas OHV

Front Gas-a-just
Monotube Performance Upgrade
(Except Electronic Adjustable Suspension)

2 Per Vehicle


Customers who bought KYB KG54309 Shock Absorber also purchased

KYB KG5493 Shock Absorber
KYB KG5493 Shock Absorber
KYB KG5490 Shock Absorber
KYB KG5490 Shock Absorber
Goodyear 4060865 Serpentine Belt
Goodyear 4060865 Serpentine Belt