Bilstein 19-158839 Suspension Shock Absorber - Rear

Bilstein B4 OE Replacement Shock Absorber Overview

The Bilstein shock absorber 19-158839 is designed specifically for BMW Z3 models, providing reliable suspension performance. Engineered with a twintube internal design and finished in durable black paint, this shock absorber offers consistent damping for improved ride comfort and vehicle control.

• Compatible with BMW Z3 suspension systems
• Twintube internal design for balanced damping
• Black paint finish for corrosion resistance
• Lower mount type: Eye 12mm
• Upper mount type: Stem
• Boot not included

About the Bilstein B4 OE Replacement Series

The B4 OE Replacement line from Bilstein is engineered to meet or exceed original equipment specifications. This series focuses on restoring the original driving characteristics of your BMW Z3 by using OE-style components and designs. The B4 shocks are ideal for drivers seeking a direct replacement that maintains factory ride quality and handling without modification.

Product Details and Specifications

The Bilstein 19-158839 shock absorber features a twintube internal design, which provides a smooth and controlled ride by effectively managing suspension movement. The black paint finish offers protection against corrosion, extending the service life of the shock. The lower mount is an eye type with a 12mm diameter, while the upper mount uses a stem design, ensuring proper fitment and secure installation on the BMW Z3 chassis. Note that this shock absorber does not include a protective boot.

Common Applications and Problem Solving

• Restores original suspension damping performance on BMW Z3
• Reduces excessive bouncing and body roll
• Improves vehicle stability during cornering and braking
• Addresses worn or leaking shock absorbers causing poor ride quality
• Replaces damaged or corroded suspension components

Installation Notes and Tips

When installing the Bilstein 19-158839 shock absorber on a BMW Z3, ensure the correct orientation of the eye and stem mounts for proper fitment. Since the boot is not included, inspect existing boots for wear and replace if necessary to protect the shock shaft. It is recommended to replace shocks in pairs to maintain balanced suspension performance.

Quality Assurance and Warranty

Bilstein manufactures the 19-158839 shock absorber to meet OE standards, ensuring durability and consistent performance. The B4 OE Replacement series is backed by Bilstein's quality control processes. Please refer to Bilstein's official warranty policy for specific coverage details.