Bilstein 22-306630 Suspension Strut Assembly - Front Right

Bilstein B4 Front Right Strut Assembly

The Bilstein B4 OE Replacement front right suspension strut assembly is built to restore original ride quality and handling on select BMW applications. This Bilstein shock absorber is engineered to meet or exceed OE standards while maintaining the factory driving feel.

Compatible with BMW 330i xDrive, M340i xDrive, 430i xDrive, and M440i xDrive front right positions, part number 22-306630 is a direct-fit suspension strut assembly for vehicles without electronic suspension or with sport suspension as listed below.

Key Features

• Bilstein B4 OE Replacement series
• Front right suspension strut assembly
• Twintube internal design
• Black paint finish
• Stem upper mount and base cup lower mount
• No boot included
• OE-style replacement for factory ride and handling characteristics

Product Line Details

The Bilstein B4 OE Replacement line is focused on restoring original suspension performance with OE-level fit and function. For BMW owners, this line provides a factory-style replacement option that follows the original damper layout and mounting style while using Bilstein engineering and manufacturing standards.

Detailed Description

Bilstein part number 22-306630 is a front right suspension strut assembly for select BMW 3 Series and 4 Series xDrive models. It uses a twintube design with a stem upper mount and base cup lower mount, making it a direct replacement for the original front suspension unit on the listed vehicles. This part cross-references BMW OE numbers 31 31 6 879 312 and 31 31 6 879 314 for the same application.

Compatible With 2021-2025 BMW 430i xDrive, front right, sport suspension without electronic suspension; 2025 BMW M440i xDrive, front right, sport suspension without electronic suspension; 2019-2024 BMW 330i xDrive, front right, sport suspension without electronic suspension; 2020-2024 BMW M340i xDrive, front right, without electronic suspension; and 2021-2024 BMW M440i xDrive, front right, without electronic suspension.

Common Issues This Part Can Address

• Front-end ride quality that has become harsh or inconsistent
• Loss of original damping response over time
• Excessive bounce or reduced body control at the front right corner
• Need for an OE-style replacement strut on BMW xDrive models
• Suspension wear on vehicles with sport suspension and no electronic suspension

Installation Notes

• Install only on the front right position listed in the fitment data.
• Verify whether the vehicle has sport suspension and no electronic suspension before ordering.
• Inspect related suspension components such as mounts, springs, and hardware during replacement.
• Professional installation and alignment are recommended after strut replacement.

Quality Assurance

Bilstein B4 OE Replacement dampers are engineered to meet or exceed OE standards for factory-style performance and fit. Part number 22-306630 is built for the specified BMW applications and follows Bilstein’s OE replacement product line requirements.