KYB 551121 | Front Suspension Strut

Part Number
551121
High Pressure Monotube Gas Strut

Fits: 07-13 Chevrolet Avalanche, 07-13 Chevrolet Silverado 1500, 07-14 Chevrolet Suburban 1500, 07-14 Chevrolet Tahoe, 07-13 GMC Sierra 1500, 07-14 GMC Yukon, 07-14 GMC Yukon XL 1500, 08-14 Cadillac Escalade, 08-14 Cadillac Escalade ESV, 08-13 Cadillac Escalade EXT

Special Price $110.69 Regular Price $122.99
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Estimated Ship Date: 1 Business Day or Less
The Gas-a-just monotube shock absorber is available as an OE monotube replacement to restore your vehicles original capabilities. 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.
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 Gas-a-Just is available as an OE monotube replacement and as an OE twin-tube performance upgrade. 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.


BRAND: KYB




FEATURES:


  • High Pressure Monotube Gas Strut


SPECIFICS:


B-stopN
Compressed Length13.26
Dust Cover IncludedN
Extended Length17.71
Feature and Benefit 1THE CORRECT, MONOTUBE-DESIGNED OEM REPLACEMENT
Feature and Benefit 2THE KYB GAS-A-JUST HELPS RESTORE THE DESIGNED CONTROL AND HANDLING OF FULL-SIZE GM TRUCKS
Feature and Benefit 3GAS-A-JUST MONOTUBES ARE DESIGNED FOR VEHICLES THAT WORK, TOW, AND HAVE LARGER, HEAVIER TIRES & WHEELS
Feature and Benefit 4HIGH PRESSURE MONOTUBE DESIGN SEPARATES THE GAS AND OIL FOR FADE FREE OPERATION AND INSTANT RESPONSE
Feature and Benefit 5FLUID 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 6THE HIGHER GAS PRESSURE OF THE KYB GAS-A-JUST RESPONDS QUICKLY TO IMPROVE STEERING RESPONSE
Feature and Benefit 7ELECTRONIC 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 8TO REDUCE THE CHANCE OF NOISE AND VIBRATION KYB RECOMMENDS INSTALLING NEW STRUT MOUNTS, PART NUMBER: SM5530
Feature and Benefit 9PROTECT YOUR NEW STRUTS FROM DIRT, DEBRIS AND SALT WITH A KYB STRUT BOOT, PART NUMBER: SB129
Lower Mount TypeE3(100X128X10)
R-stopY
Stroke Length4.45
Upper Mount Type10X1.25



DOWNLOADS:




INTERCHANGE:


  • General Motors: 25871207
  • General Motors: 15903323
  • General Motors: 15846889
  • Gabriel: G51870
  • General Motors: 15903315
  • General Motors: 15903305
  • General Motors: 15903303
  • Monroe Shocks & Struts: 39105

APPLICATIONS:


  • 2007-2007 Chevrolet Silverado 1500 - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Suspension)
  • 2008-2014 Cadillac Escalade - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Adjustable Suspension)
  • 2007-2014 GMC Yukon - Position: Front
    • Recommended OEM Replacement (Exc. Electronic, ZW7 Premium Smooth Ride Suspension and Police Package)
  • 2008-2014 Cadillac Escalade ESV - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Adjustable Suspension)
  • 2007-2013 Chevrolet Avalanche - Position: Front
    • Recommended OEM Replacement Except Electronic and Premium Smooth ride Suspension
  • 2007-2014 Chevrolet Tahoe - Position: Front
    • Recommended OEM Replacement (Exc. Electronic, ZW7 Premium Smooth Ride Suspension and Police Package)
  • 2007-2014 GMC Yukon XL 1500 - Position: Front
    • Recommended OEM Replacement Except Electronic and Premium Smooth ride Suspension
  • 2011-2014 GMC Yukon - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Suspension and Police Package)
  • 2008-2013 Chevrolet Silverado 1500 - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Susp.)
  • 2007-2013 GMC Sierra 1500 - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Susp.)
  • 2007-2013 GMC Sierra 1500 - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Suspension)
  • 2007-2014 Chevrolet Suburban 1500 - Position: Front
    • Recommended OEM Replacement (Exc. Electronic or Premium Smooth Ride Susp.)
  • 2008-2013 Cadillac Escalade EXT - Position: Front
    • Recommended OEM Replacement (Exc. Electronic Adjustable Suspension)
  • 2011-2014 Chevrolet Tahoe - Position: Front
    • Recommended OEM Replacement ALL (Except Electronic and ZW7 Premium Smooth Ride Suspension)
Customer Questions
How often should shock absorbers be replaced?
Shock absorbers should generally be replaced every 50,000 miles or every 5-7 years
How to replace shock absorbers?
To replace shock absorbers, you need to remove the wheel and tire assembly, unbolt the old shock absorber, replace it with a new one, and tighten the bolts. Then, reinstall the wheel and tire, and test the new shocks.
Why do shock absorbers leak?
Shock absorbers can leak due to worn seals, damage to the piston or cylinder, or corrosion from exposure to moisture and road salt.
Can shock absorbers be replaced?
Yes, shock absorbers can be replaced when they start to wear out or fail.
Please, mind that only logged in users can submit questions

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