Bilstein B4 Rear Shock Absorber - 19-135052
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AutodocBILSTEIN Shock absorber BMW,ALPINA 19-135052 BNED505,33506784978,33526771729 Shocks,Shock absorbers,Suspension shocks 33526772927,33526775376,6771729
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Product Information
Full details
The Bilstein B4 Performance Gas Dampers are designed for vehicle owners seeking a reliable, budget-friendly upgrade to their original shock absorbers. Offering a noticeable improvement in ride comfort and handling stability, these dampers are an excellent choice for daily drivers or those making minor suspension modifications. A potential consideration is their compatibility with significantly lowered vehicles, as they are optimized for up to approximately 40mm of lowering.
All features
| Model Part Number | 19-135052 |
|---|---|
| Brand | Bilstein |
Extended Product Information
FAQs
Are Bilstein B4 dampers a significant upgrade over stock?
Yes, they offer a noticeable improvement in damping control, ride comfort, and stability compared to many original equipment dampers.
Can I use these with my existing stock springs?
Absolutely. They are designed as direct replacements and work excellently with standard ride height springs.
What is the maximum recommended lowering with these shocks?
They are suitable for use with lowering springs offering up to approximately 40mm of drop.
Do these dampers require any special maintenance?
No, Bilstein B4 dampers are sealed units and require no user-added maintenance. Regular visual inspection for leaks is recommended.
Are these suitable for track use?
While they offer improved performance, they are primarily designed for street use and daily driving. For dedicated track applications, Bilstein offers different performance lines.
How long do Bilstein B4 dampers typically last?
Bilstein products are known for their durability. Lifespan varies based on driving conditions and mileage, but they are engineered for long service life.
Is professional installation necessary?
Professional installation is highly recommended to ensure correct fitment, alignment, and safety. Improper installation can lead to poor performance and potential damage.
Troubleshooting
Vehicle feels too bouncy after installation.
Ensure the shock absorber was installed correctly and fully compressed before final mounting. Verify compatibility with existing springs; if using significantly stiffer springs, a different damper might be needed.
Noticeable clunking noise from the rear.
Check that all mounting bolts are torqued to the manufacturer's specifications. Ensure any included hardware or bump stops are correctly installed.
Ride height is significantly lower than expected.
Verify that the installed springs are compatible with the shock absorber and not excessively lowered (beyond ~40mm). Check if the shock absorber has fully settled into its mounting points.
Pros and Cons
Pros
- Offers a noticeable improvement in ride quality and handling over stock dampers.
- Provides excellent stability and control, especially at higher speeds.
- Compatible with both standard and slightly lowered suspension setups.
- Gas pressure technology ensures consistent performance.
- A cost-effective way to upgrade suspension performance.
Cons
- Not designed for extreme lowering (beyond approximately 40mm).
- May not offer the aggressive damping characteristics desired by track-focused drivers.
- Requires professional installation for optimal safety and performance.
Setup, Compatibility & Care
Setup: The Bilstein B4 Rear Shock Absorber (19-135052) is designed as a direct replacement for specific vehicle applications. Installation typically involves removing the old shock absorber and mounting the new Bilstein unit in its place, connecting it to the vehicle's suspension components. It is strongly recommended that installation be performed by a qualified mechanic to ensure proper alignment and safety.
Compatibility: This specific part number, 19-135052, is designed for rear axle fitment on compatible vehicle models. Always verify fitment with your vehicle's make, model, and year before purchase. The dampers are compatible with standard factory springs and aftermarket lowering springs designed for up to approximately 40mm of drop.
Care: Bilstein B4 dampers are sealed units and do not require user maintenance. However, regular visual inspection for leaks or physical damage is advised. Keep the shock absorber body clean from excessive dirt and road salt, which can accelerate corrosion over time. Ensure any accompanying suspension components are also kept in good condition.