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KYB Suspension 551116 Gas-a-Just Monotube Performance Shock Absorber

(2004-2008 Mazda RX-8)

Part of: KYB Suspension Gas-a-Just Monotube Performance Shock Absorber

Other options in this family: KYB Suspension 551108 KYB Suspension KG4605A KYB Suspension 551119 KYB Suspension KG4503 KYB Suspension 551122

Manufacturer

Picture for manufacturer KYB Suspension

Part Number

551116
12 reviews
Sale Price

$122.41

In Stock (10+)

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Usually delivered within 2 days

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Live-in-stock inventory

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Fitment guaranteed

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Product Details

The KYB Gas-a-Just 551116 is a high-performance monotube shock absorber designed to deliver superior handling and responsiveness compared to traditional twin-tube designs. This advanced shock absorber automatically adapts to changing driving conditions, providing enhanced control without experiencing performance fade caused by aeration.

Key Features:

  • Monotube design with two separate working chambers for optimal performance
  • Air-free hydraulic piston and valve area ensures immediate response and precise control
  • High-pressure nitrogen gas chamber with floating piston provides consistent damping
  • Automatically adjusts to performance demands in real-time
  • Fade-free operation eliminates performance degradation during demanding driving
  • Comfortable ride quality during normal driving with instant performance when needed
  • Available as direct OE monotube replacement or twin-tube performance upgrade

The Gas-a-Just's dual-chamber design separates the hydraulic fluid from the nitrogen gas charge, preventing air contamination and maintaining consistent damping force. This configuration allows the shock to deliver a smooth, controlled ride during everyday driving while instantly providing enhanced performance when cornering, braking, or driving on uneven surfaces.

Products specifications

Fits

2004-2008 Mazda RX-8

Compressed Length

15.62

Extended Length

22.71

Stroke Length

7.09

Lower Mount Type

E2(18X46)

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

Upper Mount Type

S1

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 RX-8

R-stop

Y

Internal Rebound Spring

N

Easy ordering, quick delivery. Great job!

I ordered by item part number at parts desk. Was informed of immediate availability. Got item in three days. Great job

seems like good job! thanks

Other variations of the control arms were not shown to me on the website.

Good this far.

no core and free shipping. Incredible! now if it gets here before the 21st i will be in business!

Great site , deliveries comes fast

very easy

Lightning fast service! Good prices.

For this being my fist time using your site. I thought it was a smooth site to shop and find my products and than place my order. I also liked the price.

I'll start off saying that Autoplicity's prices are unbeatable...but, I placed my order on a Saturday night (which I know is the weekend)on a in stock part and it took them till the following Thursday to ship it out. I use my truck to make a living and was hoping to get it a little quicker, but now I'm down another 3-4 days till the part gets here. Also, I sent a e-mail on Tuesday evening regaurding my order and never got a response.

Autoplicity, was very easy to use, very fast, and an enjoyable experience. I would recommend to my closest friends!!

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