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KYB 553388 Shock Absorber - Rear
Overview of KYB Gas-a-just Suspension Shock Absorber 553388
The KYB Gas-a-just Suspension Shock Absorber 553388 is engineered for precise damping performance on select Mercedes-Benz models. Designed to restore factory ride quality, this shock absorber is compatible with Mercedes-Benz E63 AMG, E250, E350, E400, and E550 vehicles.
- Compressed length: 15.15 inches
- Extended length: 22.63 inches
- Stroke length: 7.48 inches
- Lower mount type: E2 (10.2x48)
- Upper mount type: S1
- Rear stop (R-stop) included
- No dust cover or internal rebound spring
About the KYB Gas-a-just Product Line
The Gas-a-just line from KYB focuses on gas-charged shock absorbers designed to provide consistent damping and improved vehicle control. This product line is tailored to maintain the original suspension performance of your Mercedes-Benz, ensuring a smooth and stable ride under various driving conditions. The 553388 shock absorber is part of this line, offering reliable gas pressure technology without additional components like dust covers or internal rebound springs.
Technical Details and Compatibility
This KYB shock absorber features a compressed length of 15.15 inches and an extended length of 22.63 inches, with a stroke length of 7.48 inches, making it suitable for the suspension geometry of the specified Mercedes-Benz models. The lower mount uses an E2 type fitting (10.2x48), while the upper mount is an S1 type, ensuring proper fitment and secure installation. The inclusion of an R-stop enhances the shock's ability to control suspension travel, contributing to vehicle stability.
Common Applications and Problem Solving
- Restores original ride comfort and handling on Mercedes-Benz E63 AMG, E250, E350, E400, and E550
- Reduces excessive bouncing and body roll
- Improves vehicle control during acceleration and braking
- Addresses uneven tire wear caused by worn shocks
- Eliminates noise and vibration from deteriorated suspension components
Installation Notes and Tips
When installing the KYB Gas-a-just 553388 shock absorber, ensure the vehicle is securely lifted and supported. Verify the correct orientation of the upper S1 and lower E2 mounts before tightening. Since this shock does not include a dust cover or internal rebound spring, inspect surrounding suspension components for wear and replace if necessary. Proper torque specifications should be followed to maintain safety and performance.
Quality Assurance and Warranty
KYB manufactures the Gas-a-just 553388 shock absorber to meet OEM standards for durability and performance. While specific warranty details are not provided here, KYB products typically come with a limited warranty covering defects in materials and workmanship. This ensures confidence in the product’s reliability for Mercedes-Benz E63 AMG, E250, E350, E400, and E550 applications.
| Brand | StrongArm |
|---|---|
| Part Number | 4985 |
| Position | Gas-a-just |
| Compressed Length | 21.07 |
| Cylinder Outside Diameter | 22.0 |
| End 1 Type | Blade (.462 dia. Hole) |
| End 2 Type | Ball Socket (Nylon) 10mm |
| Extended Length | 34.07 |
| Inner Shaft Diameter | 10.0 |
| Internal Rebound Spring | No |
| Materials | Rubber |
| Materials | Teflon |
| Maximum Force | 61.0 |
| Outer Cylinder Color | Black |
| Outer Cylinder Material | Steel |
| Stroke Length | 13.0 |
| Universal Or Specific Fit | Specific |
This part fits 26 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2016 | Mercedes-Benz | E250 | Rear | Recommended OEM Replacement; (Exc. Sport Suspension); Gas-a-just | ||
| 2016 | Mercedes-Benz | E350 | Base | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2016 | Mercedes-Benz | E350 | 4Matic | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2015 | Mercedes-Benz | E250 | Rear | Recommended OEM Replacement; (Exc. Sport Suspension); Gas-a-just | ||
| 2015 | Mercedes-Benz | E350 | Base | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2015 | Mercedes-Benz | E350 | 4Matic | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2015 | Mercedes-Benz | E400 | Hybrid | Sedan | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 2014 | Mercedes-Benz | E250 | Rear | Recommended OEM Replacement; (Exc. Sport Suspension); Gas-a-just | ||
| 2014 | Mercedes-Benz | E350 | Base | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2014 | Mercedes-Benz | E350 | 4Matic | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2014 | Mercedes-Benz | E400 | Hybrid | Sedan | Rear | Replace suspension strut and coil spring assembly according to manufacturer's instructions.; Gas-a-just |
| 2014 | Mercedes-Benz | E550 | 4Matic | Rear | Recommended OEM Replacement; w/o Air and Sport Suspension; Gas-a-just | |
| 2013 | Mercedes-Benz | E350 | Base | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2013 | Mercedes-Benz | E350 | 4Matic | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2013 | Mercedes-Benz | E350 | Bluetec | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just | |
| 2013 | Mercedes-Benz | E550 | 4Matic | Rear | Recommended OEM Replacement; w/o Air and Sport Suspension; Gas-a-just | |
| 2012 | Mercedes-Benz | E350 | Base | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2012 | Mercedes-Benz | E350 | 4Matic | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2012 | Mercedes-Benz | E350 | Bluetec | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just | |
| 2012 | Mercedes-Benz | E550 | 4Matic | Rear | Recommended OEM Replacement; w/o Air and Sport Suspension; Gas-a-just | |
| 2011 | Mercedes-Benz | E350 | Base | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2011 | Mercedes-Benz | E350 | 4Matic | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2011 | Mercedes-Benz | E350 | Bluetec | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just | |
| 2010 | Mercedes-Benz | E350 | Base | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2010 | Mercedes-Benz | E350 | 4Matic | Sedan | Rear | Recommended OEM replacement; without sport suspension; Gas-a-just |
| 2010 | Mercedes-Benz | E63 AMG | Sedan | Rear | Recommended OEM Replacement; w/o Sport, Air Ride and Electronic Suspensions; Gas-a-just |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.