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Bilstein has been the OE shock supplier to Mercedes-Benz, BMW, Porsche, and Ferrari since 1957. German-engineered B4 OE replacements, B6 sport, B8 lift-corrected, and B14/B16 coilovers — every Bilstein damper carries motorsport-derived monotube technology.
The Bilstein B4 OE Replacement rear shock absorber is designed to restore the precise handling and comfort that your BMW was famous for when it left the factory. Whether you drive a 3 Series or a 4 Series, these shocks are engineered to meet the exact requirements of your vehicle's suspension system. Bilstein is a world leader in suspension technology, and the B4 series provides the perfect balance of performance and reliability for daily driving.
Driving a BMW is all about the connection between the driver and the road. If your rear shocks are worn, you lose that connection, resulting in a floaty ride and reduced stability. By installing Bilstein B4 shocks, you are ensuring that your vehicle's suspension is working at its peak, providing the control and comfort you expect. These shocks are a direct fit, making the installation process straightforward for both DIY enthusiasts and professional mechanics. Don't settle for aftermarket alternatives that compromise your BMW's performance; choose the standard in OE replacement technology. Experience the ultimate driving machine as it was meant to be with quality parts from GGCRACING.
| Brand | Bilstein |
|---|---|
| Manufacturer part number | 20-238933 |
| GGC SKU | BIL20-238933 |
| UPC / GTIN | 651860765419 |
Use the manufacturer part number when you compare with other listings or ask us to confirm a match.
| Box size | 27.2 × 6.3 × 6.3 in |
|---|---|
| Shipping weight | 9.7 lb |
| Year | Make | Model | Trim |
|---|---|---|---|
| 2014-2016 | BMW | 228i | Base |
| 2015-2016 | BMW | 228i xDrive | Base |
| 2017-2021 | BMW | 230i | Base |
| 2017-2021 | BMW | 230i xDrive | Base |
| 2014-2018 | BMW | 328d | Base |
| 2014-2018 | BMW | 328d xDrive | Base |
| 2012-2016 | BMW | 328i | Base |
| 2014-2016 | BMW | 328i GT xDrive | Base |
| 2013-2016 | BMW | 328i xDrive | Base |
| 2017-2018 | BMW | 330i | Base |
| 2017-2019 | BMW | 330i GT xDrive | Base |
| 2017-2019 | BMW | 330i xDrive | Base |
| 2012-2015 | BMW | 335i | Base |
| 2014-2016 | BMW | 335i GT xDrive | Base |
| 2013-2015 | BMW | 335i xDrive | Base |
| 2016-2018 | BMW | 340i | Base |
| 2017-2019 | BMW | 340i GT xDrive | Base |
| 2016-2018 | BMW | 340i xDrive | Base |
| 2014-2016 | BMW | 428i | Base |
| 2015-2016 | BMW | 428i Gran Coupe | Base |
| 2014-2016 | BMW | 428i xDrive | Base |
| 2015-2016 | BMW | 428i xDrive Gran Coupe | Base |
| 2017-2020 | BMW | 430i | Base |
| 2017-2019 | BMW | 430i Gran Coupe | Base |
| 2017-2020 | BMW | 430i xDrive | Base |
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