Bilstein 23-305014 Suspension Strut Assembly - Front Right

Bilstein B4 OE Replacement Suspension Strut Assembly Overview

The Bilstein B4 OE Replacement (DampTronic) suspension strut assembly, part number 23-305014, is engineered for precise fitment on BMW 330e, 330i, and 430i models. Designed to restore original ride comfort and handling, this strut assembly meets OE specifications for reliable performance.

• Compatible with BMW 330e, 330i, and 430i models
• Collapsed length: 14.65 inches (372.0 mm)
• Extended length: 22.38 inches (568.5 mm)
• Twintube internal design for consistent damping
• Black paint finish for corrosion resistance
• Fixed spring seat included
• Upper mount type: Stem; Lower mount type: Base cup
• Boot not included

Detailed Product Features and Specifications

This Bilstein suspension strut assembly features a twintube internal design that provides stable and consistent damping characteristics, essential for maintaining vehicle control and comfort. The strut’s collapsed length of 14.65 inches (372.0 mm) and extended length of 22.38 inches (568.5 mm) ensure proper fitment and travel range for the specified BMW models. Finished in durable black paint, the strut resists corrosion and wear over time. The assembly includes a fixed spring seat, which simplifies installation and maintains spring positioning. The upper mount is a stem type, while the lower mount uses a base cup design, matching OEM mounting points for direct replacement.

About the B4 OE Replacement (DampTronic) Product Line

The B4 OE Replacement (DampTronic) line by Bilstein is designed to provide direct-fit suspension components that replicate original equipment performance. This product line is tailored for vehicles equipped with DampTronic electronic damping control systems, ensuring compatibility and maintaining factory ride characteristics. The 23-305014 strut assembly is part of this series, offering a reliable replacement option for BMW 330e, 330i, and 430i models requiring OE-level suspension performance.

Common Applications and Problem Resolution

• Restores factory ride comfort and handling on BMW 330e, 330i, and 430i
• Replaces worn or leaking suspension struts
• Eliminates excessive body roll and instability
• Corrects uneven tire wear caused by faulty struts
• Improves vehicle control and braking response

Installation Notes and Tips

Ensure compatibility with your specific BMW model before installation. The fixed spring seat included simplifies assembly, but professional installation is recommended to maintain proper alignment and safety. Since the boot is not included, inspect the existing boot for damage and replace if necessary to protect the strut shaft. Verify that the upper stem and lower base cup mounts align correctly with the vehicle’s mounting points.

Quality Assurance and Warranty Information

Bilstein suspension components are manufactured to meet or exceed OEM standards, ensuring durability and consistent performance. The B4 OE Replacement (DampTronic) strut assembly undergoes rigorous quality control to provide reliable operation. Warranty coverage details should be confirmed with the supplier or manufacturer, as they may vary by region.