My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

KYB Suspension 551127 Gas-a-Just Monotube Gas Shock Absorber

(2006-2013 Lexus IS250; 2011-2013 Lexus IS350)

Manufacturer

Part Number

551127
Sale Price

$113.83

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The KYB Gas-a-Just 551127 is a high-performance monotube gas shock absorber designed to restore and enhance your vehicle's handling characteristics. This premium replacement shock features advanced monotube technology that delivers superior responsiveness and control compared to conventional twin-tube designs.

Advanced Monotube Design:

  • Two separate working chambers for optimal performance
  • Air-free hydraulic piston and valve area ensures immediate responsiveness and precise control
  • High-pressure nitrogen gas chamber with floating piston separator
  • Larger piston diameter provides increased working capacity and better heat dissipation
  • Fade-free performance even under demanding driving conditions

Performance Benefits:

  • Reduced body roll and improved cornering stability
  • Enhanced steering response and vehicle control
  • Firmer, more responsive ride quality compared to OE shocks
  • Instant performance on demand when pushing your vehicle
  • Comfortable ride during normal driving conditions

The Gas-a-Just line is ideal for drivers seeking improved handling performance, vehicles with heavy loads, or those who demand more from their suspension system. The monotube construction eliminates aeration and maintains consistent damping performance, making this an excellent choice for performance-oriented applications and OE monotube replacements.

Products specifications

Fits

2006-2013 Lexus IS250; 2011-2013 Lexus IS350

Upper Mount Type

12X1.25

Compressed Length

13.24

Extended Length

17.2

Stroke Length

3.96

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 ARE DESIGNED 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

Dust Cover Included

N

B-stop

N

FEATURE AND BENEFIT 1

THE CORRECT, MONOTUBE-DESIGNED OEM REPLACEMENT

Feature and Benefit 6

THE HIGHER GAS PRESSURE OF THE KYB GAS-A-JUST RESPONDS QUICKLY TO IMPROVE STEERING RESPONSE

Feature and Benefit 2

THE KYB GAS-A-JUST HELPS RESTORE THE DESIGNED CONTROL AND HANDLING OF THE LEXUS IS

R-stop

Y

Internal Rebound Spring

N

My order was relieved before the date I expected it.

my stars tell it all

Great all-around experience

Was delivered just a day late

It was quick, easy, and trouble free

Good produced and fast shipping

Very quick and easy

Good fast shipping. Easy ordering.

I recently ordered 2 Borla Dual Round Intercooled Tips from Autoplicity.com for one reason and reason only...their prices can not be beat! No where else online can anyone match them! <br>

I didn't even know Autoplicity existed until I did some comparison shopping online! BEST prices, and IMMEDIATE shipping! I'll be back, for sure!

I have to say I was skeptical at first because autoplicity's price beat everyone by so much! Then I estimated my shipping charges with their system and that too was real cheap for this heavy item I ordered! I ordered it on Sunday and it showed up on Tuesday afternoon! So exceptional pricing meets exceptional shipping and my item is the real thing for a lot less leaves me completely satisfied with this company! I will be recommending them to my friends and family, thanks!

Very satisfied. Good price and quick delivery.

Great prices, quick ship thanks!

The price is right but shipping cost is high. I bought a transmission seal for $12.91 and shipping was $13.31. The box it shipped in was about 10 times bigger than the part itself. Reduce the box and reduce my shipping cost please ! Else than that the part was in good condition, it was packed right and shipping time was reasonable.

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy