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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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KYB
KYB Gas-a-Just Rear Monotube Shock Absorber for 2014-2021 Lexus IS200t/IS250/IS300/IS350 (5540004)
$100.10
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Fits select 2014-2021 Lexus IS200t, IS250, IS300, and IS350. The KYB Gas-a-Just 5540004 is a high-pressure monotube shock absorber engineered as an OE-style replacement to restore the original damping performance and handling characteristics of your Lexus IS. Unlike standard twin-tube designs, this monotube shock eliminates aeration and foaming for more consistent, fade-free responsiveness.
The Gas-a-Just features two distinct working chambers: an air-free hydraulic piston and valve area for precise control, and a separate high-pressure nitrogen gas chamber with a floating piston. This design allows for a smooth, compliant ride during normal driving while providing instant performance and stability when the suspension is pushed. By maintaining consistent tire-to-road contact, these shocks ensure that vehicle electronic safety systems, such as ABS and stability control, function as intended.
- Manufacturer Part Number: 5540004
- Position: Rear
- Design: Monotube High-Pressure Gas
- Body Construction: Seamless cylinder for increased strength and durability
- Hardware: Includes necessary mounting bushings and sleeves where applicable
- Fitment: Fits Lexus IS models with 2014-2021 model year range
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2017 | Lexus | IS200t | Base |
| 2016 | Lexus | IS200t | F Sport |
| 2014-2015 | Lexus | IS250 | Base |
| 2014-2015 | Lexus | IS250 | F Sport |
| 2016-2021 | Lexus | IS300 | Base |
| 2014-2020 | Lexus | IS350 | Base |
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The Atlus Price Guarantee
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom right of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
KYB Gas-a-Just Rear Monotube Shock Absorber for 2014-2021 Lexus IS200t/IS250/IS300/IS350 (5540004)
$100.10
Note: Images are for illustrative purposes only. The actual product may vary in appearance or contents. Please read the full description and verify the item you're receiving.
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
Price Match
If you can find the part for a lower price from an authorized dealer/shop, we'll match the price! Reach out to Hello@AtlusAuto.com, our live chat located at the bottom of your screen, or request an Atlas Price Guarantee, or visit our dedicated APG page to submit a request.
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Share:
$100.10
$100.10
$100.10
Fits select 2014-2021 Lexus IS200t, IS250, IS300, and IS350. The KYB Gas-a-Just 5540004 is a high-pressure monotube shock absorber engineered as an OE-style replacement to restore the original damping performance and handling characteristics of your Lexus IS. Unlike standard twin-tube designs, this monotube shock eliminates aeration and foaming for more consistent, fade-free responsiveness.
The Gas-a-Just features two distinct working chambers: an air-free hydraulic piston and valve area for precise control, and a separate high-pressure nitrogen gas chamber with a floating piston. This design allows for a smooth, compliant ride during normal driving while providing instant performance and stability when the suspension is pushed. By maintaining consistent tire-to-road contact, these shocks ensure that vehicle electronic safety systems, such as ABS and stability control, function as intended.
- Manufacturer Part Number: 5540004
- Position: Rear
- Design: Monotube High-Pressure Gas
- Body Construction: Seamless cylinder for increased strength and durability
- Hardware: Includes necessary mounting bushings and sleeves where applicable
- Fitment: Fits Lexus IS models with 2014-2021 model year range
🔧 Fitment & Compatibility
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2016-2017 | Lexus | IS200t | Base |
| 2016 | Lexus | IS200t | F Sport |
| 2014-2015 | Lexus | IS250 | Base |
| 2014-2015 | Lexus | IS250 | F Sport |
| 2016-2021 | Lexus | IS300 | Base |
| 2014-2020 | Lexus | IS350 | Base |
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