Bilstein 22-303301 Suspension Strut Assembly - Front Left

Bilstein B4 OE Replacement Front Left Strut

The Bilstein B4 OE Replacement suspension strut assembly is built to restore original ride quality and handling on select BMW models. This front left unit is engineered to meet or exceed OE standards while preserving the factory driving feel.

Compatible with 2019-2024 BMW 330i, 2021-2025 BMW 430i, and 2022-2025 BMW 230i in standard suspension applications without electronic suspension, part number 22-303301 is a direct-fit OE-style replacement for the front left position.

Key Features

• Bilstein B4 OE Replacement series for factory-style ride restoration
• Twintube internal design for consistent damping response
• Black painted finish for corrosion-resistant appearance
• Stem upper mount and base cup lower mount configuration
• Boot not included
• Cross-reference: BMW 31 31 6 888 453 for the same application

Product Details

Bilstein B4 OE Replacement dampers are developed for drivers who want to return the suspension to original performance characteristics without changing the vehicle’s intended ride balance. This front left strut assembly uses a twintube design and OE-style mounting points to support predictable steering response, controlled body motion, and factory-correct suspension behavior on BMW 330i, BMW 430i, and BMW 230i models with standard suspension and no electronic suspension system. The 22-303301 part number is a practical choice when replacing a worn front strut on these applications.

The B4 OE Replacement line focuses on maintaining original equipment ride quality while meeting OE-level expectations for fit and function. For BMW 330i, BMW 430i, and BMW 230i owners searching for a front left suspension strut assembly, 22-303301 provides a direct replacement path that aligns with the vehicle’s factory suspension setup.

Common Issues This Part Can Address

• Excessive bouncing or reduced damping control from a worn front strut
• Uneven front-end ride height feel caused by suspension wear
• Loose or unsettled steering response over bumps and road joints
• Increased nose dive during braking from degraded shock control
• Factory ride quality loss on BMW 330i, BMW 430i, or BMW 230i models

Installation Notes and Tips

Verify that the vehicle has standard suspension without electronic suspension before ordering. This strut assembly is for the front left position only and uses a stem upper mount with a base cup lower mount. Inspect related suspension components such as mounts, springs, and hardware condition during replacement, and confirm all fitment details against the vehicle’s build configuration before installation.

Quality Assurance

Bilstein B4 OE Replacement parts are engineered to meet or exceed OE standards for fit and performance. The 22-303301 strut assembly reflects Bilstein’s OE-focused product line for restoring factory ride characteristics on supported BMW applications.