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Bilstein 44-240004 Air Suspension Strut - Front Left
| Brand | Bilstein 44-240004 |
|---|---|
| Position | Front Left |
| Boot Included | No |
| Finish | Black paint |
| Internal Design | Monotube |
| Lower Mount Type | Clevis |
| Series | B4 oe replacement (air) |
| Title | Bilstein shock absorbers |
| Upper Mount Type | Multiple studs |
| Product line | B4 OE Replacement (Air) |
| Fits | Mercedes-Benz · 4 vehicles |
OE replacement. Direct-connect fit restores the original feel without modifications.
Monotube design. Delivers consistent damping performance in an air suspension strut.
OE supplier pedigree. Built by Bilstein for standards set by the vehicle maker.
Cross-references 222 320 49 13, 222 320 81 13 and 222 320 81 13 89 for the same application. See all 3.
OE Replacement Air Strut for Mercedes-Benz
Bilstein B4 OE Replacement (Air) part number 44-240004 is a front left air suspension strut built for direct replacement on select Mercedes-Benz S550 models. It restores the original ride feel and connects to the factory air suspension connectors without modification.
For 2014-2017 Mercedes-Benz S550 front left applications, this Bilstein air strut follows OE-style mounting and fitment requirements for a clean replacement on the vehicle’s original suspension layout.
Key Features
- Bilstein B4 OE Replacement (Air) series
- Air suspension strut for front left position
- Monotube internal design
- Black paint finish
- Lower clevis mount with multiple-stud upper mount
- Direct connection to original vehicle connectors
- Part number 44-240004
Product Details
The Bilstein B4 OE Replacement (Air) line is built for European vehicles that use factory air suspension. Bilstein supplies OE air suspension systems, and this replacement damper is engineered to meet the manufacturer’s original standards while preserving the vehicle’s original suspension response. On Mercedes-Benz S550 models, 44-240004 provides a direct-fit solution for the front left corner without requiring changes to the factory setup.
This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.
What It Helps Address
- Front left air strut leakage or loss of damping control
- Uneven ride height at the front corner
- Excessive bounce, harshness, or reduced ride quality
- Warning lights or faults related to the air suspension system
- Wear from aging OE air suspension components
Installation Notes
Install 44-240004 on the front left position only for the listed Mercedes-Benz S550 applications. Verify connector style, mount type, and vehicle-side fitment before installation. Because this is an air suspension strut, the factory air system should be inspected for leaks, compressor issues, and related wear items during replacement.
Quality Assurance
Bilstein B4 OE Replacement (Air) dampers are designed as OE-style replacements for factory air suspension systems on select European vehicles. Bilstein’s OE supplier background supports consistent fitment and original-equipment-level construction for the 2014-2017 Mercedes-Benz S550 front left application.
| Year | Make | Model | Submodel | Body Type | Position | Notes |
|---|---|---|---|---|---|---|
| 2017 | Mercedes-Benz | S550 | 4Matic | Sedan | Front Left | B4 OE Replacement (Air) |
| 2016 | Mercedes-Benz | S550 | 4Matic | Sedan | Front Left | B4 OE Replacement (Air) |
| 2015 | Mercedes-Benz | S550 | 4Matic | Sedan | Front Left | B4 OE Replacement (Air) |
| 2014 | Mercedes-Benz | S550 | 4Matic | — | Front Left | B4 OE Replacement (Air) |
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