Bilstein 23-303324 Suspension Strut Assembly - Front Left

OE Replacement Front Left Strut

Bilstein B4 OE Replacement (DampTronic) part number 23-303324 is a front left suspension strut assembly for BMW models with electronic suspension. It is built to restore original ride quality and handling while meeting OE standards for electronically adjustable damping systems.

Compatible with 2019-2025 BMW 330i, front left, 2021-2025 BMW 430i, front left, and 2021-2022 BMW 330e, front left. This Bilstein 23-303324 strut assembly is a direct OE-style replacement for the factory electronic damper setup.

Key Features

• Bilstein B4 OE Replacement (DampTronic) series
• Front left suspension strut assembly for electronic suspension applications
• Twintube internal design
• Black paint finish
• Fixed spring seat included
• Upper mount type: stem
• Lower mount type: base cup
• Collapsed length: 14.65 in. (372.0 mm)
• Extended length: 22.38 in. (568.5 mm)
• Boot not included

Product Details

The Bilstein B4 OE Replacement (DampTronic) line is engineered for electronically adjustable dampers used on many European vehicles. This front left strut assembly is made to preserve the factory ride character of the BMW 330i, BMW 430i, and BMW 330e while restoring damping response and suspension control. Bilstein 23-303324 is a practical OE replacement choice when the original electronic strut has worn, leaked, or lost damping performance.

This part cross-references BMW 37 10 6 895 053 for the same application.

What It Helps Address

• Excessive bouncing or reduced damping control
• Uneven front suspension response on electronic suspension systems
• Ride quality changes caused by a worn OE strut
• Noisy or unstable front-end behavior from a failing damper
• Loss of original handling feel in BMW 330i, 430i, or 330e applications

Installation Notes

Verify electronic suspension equipment, position, and OE part number before installation. This strut uses a stem upper mount and base cup lower mount, with a fixed spring seat. Because it is a DampTronic application, confirm all electrical connections and vehicle-specific suspension coding or calibration requirements according to factory service procedures.

Quality Assurance

Bilstein B4 OE Replacement dampers are built to meet or exceed OE standards for direct replacement use. The DampTronic design supports factory electronic damping systems while maintaining the original ride quality expected from the vehicle platform.