Bilstein 22-304438 Suspension Strut Assembly - Front Left

OE Replacement Front Left Strut

Restore factory-style ride control on your BMW Z4 with the Bilstein B4 OE Replacement front left suspension strut assembly. Part number 22-304438 is built for drivers who want original handling feel and OE-level fitment for the front left corner.

Compatible with 2019-2026 BMW Z4, front left, standard suspension without electronic suspension.

Key Features

• Bilstein B4 OE Replacement series for OE-style ride restoration
• Front left suspension strut assembly
• Twintube internal design for consistent damping response
• Black paint finish
• Stem upper mount and base cup lower mount
• No boot included
• Direct replacement for BMW Z4 applications listed below

Product Line Details

The Bilstein B4 OE Replacement line is engineered to match original vehicle ride quality while meeting or exceeding OE standards. This makes it a practical choice for replacing a worn front strut on a BMW Z4 when you want to preserve the vehicle’s factory suspension behavior without changing the driving character.

This part number, 22-304438, cross-references BMW 31 31 6 879 191 for the same application.

Detailed Description

Bilstein 22-304438 is a front left suspension strut assembly for the BMW Z4 with standard suspension and no electronic suspension. It uses a twintube design and OE-style mounting points to support predictable damping and proper suspension geometry. For BMW Z4 owners seeking a direct OE replacement, this strut is built to restore the original performance and handling balance of the vehicle.

Compatible With 2019-2026 BMW Z4, front left, standard suspension without electronic suspension. The part number 22-304438 is also useful when searching for a Bilstein shock absorber replacement for the front left side of a BMW Z4.

What It Helps Address

• Excessive front-end bounce or oscillation
• Uneven or degraded ride quality from a worn strut
• Reduced steering response and road control
• Noisy or inconsistent suspension damping at the front left corner
• Restoration of OE-style suspension feel on BMW Z4 models

Installation Notes and Tips

Install on the front left position only. Verify that the vehicle has standard suspension and no electronic suspension before ordering or installation. Confirm mount style and application details against the original part number 31 31 6 879 191 and the vehicle’s suspension configuration. Professional installation and a post-installation alignment are recommended after strut replacement.

Quality Assurance

Bilstein B4 OE Replacement dampers are engineered to meet or exceed OE standards for fit and function. The 22-304438 strut assembly is part of Bilstein’s OE replacement lineup, built for consistent performance in factory-style suspension service.