Bilstein 19-135021 Suspension Shock Absorber - Rear

Bilstein B4 OE Replacement Shock Absorber Overview

The Bilstein shock absorber 19-135021 is engineered to restore the original ride quality and handling characteristics of your BMW. Designed specifically for models including the 325i, 328i, 330i, and 335i series, this suspension shock absorber offers reliable performance with a focus on durability and comfort.

• OE replacement shock absorber for BMW 3 Series models
• Twintube internal design for consistent damping
• Black paint finish for corrosion resistance
• Lower mount type: Eye; Upper mount type: Stem
• Part number 19-135021 ensures exact fitment

Features and Specifications

This Bilstein shock absorber features a twintube internal design that provides smooth and controlled damping, helping to maintain vehicle stability and comfort. The black paint finish offers protection against corrosion, extending the service life of the component. The lower mount is an eye type, while the upper mount is a stem type, matching the original equipment specifications for precise installation and fitment.

About the B4 OE Replacement Product Line

The B4 OE Replacement line from Bilstein is designed to meet or exceed original equipment standards, providing a direct replacement for worn or damaged shocks. This product line focuses on restoring the factory ride and handling characteristics without altering the vehicle’s original suspension setup. The B4 series is ideal for drivers seeking reliable performance and durability in their BMW 3 Series models.

Compatible BMW Models and Applications

This shock absorber is compatible with a range of BMW 3 Series vehicles, including the 325i, 325xi, 328i, 328i xDrive, 328xi, 330i, 330xi, 335d, 335i, 335i xDrive, and 335xi. The part number 19-135021 ensures a precise fit for these models, maintaining the original suspension geometry and performance.

Common Issues Addressed by This Shock Absorber

• Reduced ride comfort due to worn shocks
• Decreased vehicle stability and handling
• Uneven tire wear caused by suspension issues
• Excessive body roll during cornering
• Noise or vibration from damaged shock absorbers

Installation Notes and Tips

Installation of the Bilstein 19-135021 shock absorber should be performed by a qualified technician to ensure proper fitment and safety. Verify the lower eye mount and upper stem mount align with your vehicle’s suspension points. It is recommended to replace shocks in pairs to maintain balanced handling. Inspect related suspension components during installation for wear or damage.

Quality Assurance and Warranty

Bilstein manufactures this shock absorber to meet strict quality standards, ensuring durability and consistent performance. The B4 OE Replacement shock absorber is built to match original equipment specifications. Please refer to Bilstein’s official warranty policy for coverage details.