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Bilstein 44-239992 Air Suspension Strut - Rear Right
Bilstein B4 OE Replacement Air Strut
Bilstein B4 OE Replacement (Air) strut 44-239992 is built for Mercedes-Benz air suspension systems that need an OE-style rear right replacement. It connects directly to the original vehicle connectors and restores the factory ride feel on supported applications, including Mercedes-Benz S550 and S550e models.
Key Features
- Air suspension strut for the rear right position
- Bilstein B4 OE Replacement (Air) series
- Monotube internal design
- Black paint finish
- Upper mount type: multiple studs
- Lower mount type: eye
- Direct connection to original vehicle connectors
- OE replacement for European air suspension applications
Product Line Details
The Bilstein B4 OE Replacement (Air) line is aimed at restoring original suspension behavior on European vehicles with factory air suspension. Bilstein supplies OE air suspension systems, and this product line follows the same fitment and connector approach used by the vehicle manufacturer for a modification-free replacement.
Detailed Description
Part number 44-239992 is an air suspension strut designed for the rear right side on 2014-2017 Mercedes-Benz S550 models without Active Body Control and 2015-2017 Mercedes-Benz S550e models. The monotube construction supports consistent damping response, while the OE-style connector layout helps maintain the original suspension setup on the vehicle. This part cross-references Mercedes-Benz OE numbers 222 320 52 13 and 222 320 74 13 for the same application.
Common Issues This Part Can Address
- Rear right air strut leakage
- Loss of factory ride height control
- Uneven rear suspension response
- Excessive bouncing or harsh rear ride quality
- Warning lights related to air suspension performance
Installation Notes and Tips
Fits 2014-2017 Mercedes-Benz S550, rear right, without Active Body Control. Fits 2015-2017 Mercedes-Benz S550e, rear right. Verify the vehicle’s suspension configuration and connector style before installation, and confirm the rear right position matches the original part number 44-239992 application. Professional installation is recommended for air suspension service.
Quality Assurance
Bilstein is an OE supplier for air suspension systems, and the B4 OE Replacement (Air) line is manufactured to meet the standards expected for factory-level replacement on supported Mercedes-Benz applications.
| Brand | Bilstein |
|---|---|
| Part Number | 44-239992 |
| Position | B4 OE Replacement (Air), Rear Right |
| Boot Included | No |
| Finish | Black paint |
| Internal Design | Monotube |
| Lower Mount Type | Eye |
| Series | B4 oe replacement (air) |
| Title | Bilstein shock absorbers |
| Upper Mount Type | Multiple studs |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Submodel | Body Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Mercedes-Benz | S550 | Base | Sedan | Rear Right | Without Active Body Control; B4 OE Replacement (Air) |
| 2017 | Mercedes-Benz | S550e | Base | Rear Right | B4 OE Replacement (Air) | |
| 2016 | Mercedes-Benz | S550 | Base | Rear Right | Without Active Body Control; B4 OE Replacement (Air) | |
| 2016 | Mercedes-Benz | S550e | Base | Rear Right | B4 OE Replacement (Air) | |
| 2015 | Mercedes-Benz | S550 | Base | Rear Right | Without Active Body Control; B4 OE Replacement (Air) | |
| 2015 | Mercedes-Benz | S550e | Base | Rear Right | B4 OE Replacement (Air) | |
| 2014 | Mercedes-Benz | S550 | Base | Rear Right | Without Active Body Control; B4 OE Replacement (Air) |
* 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.