Bilstein 46-226617 Suspension Kit - Front and Rear

Bilstein B12 Sportline Suspension Kit

The Bilstein B12 (Sportline) suspension kit combines Bilstein Performance dampers with Eibach Sportline springs for a fixed-height lowering setup. This kit is tuned for specific applications and lowers the vehicle approximately 30-60 mm depending on the application, giving BMW 320i, 328i, 330i, 430i, and related models a more aggressive stance with matched suspension control.

Key Features

• Complete suspension kit with Bilstein Performance dampers and Eibach Sportline springs
• Extreme lowering range of approximately 30-60 mm, depending on application
• Monotube damper design for consistent damping response
• Finish: yellow dampers with red springs
• Application-specific tuning for fixed ride height and balanced suspension dynamics
• Part number 46-226617 for direct catalog reference

Product Details

Bilstein B12 Sportline is built for drivers who want a lowered suspension package with matched components rather than mixing springs and shocks separately. The monotube dampers are paired with Sportline springs to maintain controlled ride behavior after lowering, while the fixed-height setup helps deliver consistent results across the intended BMW applications. This part number, 46-226617, is listed for front and rear use on select BMW 3 Series and 4 Series models without electronic suspension.

This part cross-references Monroe Shocks & Struts (e.g., 900837, 46226617) for the same application.

Vehicle Fitment

• Fits 2017-2020 BMW 430i, front and rear, without electronic suspension; B12 (Sportline)
• Fits 2013-2018 BMW 320i, front and rear, without electronic suspension; B12 (Sportline)
• Fits 2014-2018 BMW 328d, front and rear, without electronic suspension; B12 (Sportline)
• Fits 2016-2018 BMW 330e, front and rear, without electronic suspension; B12 (Sportline)
• Fits 2017-2018 BMW 330i, front and rear, without electronic suspension; B12 (Sportline)
• Fits 2012-2016 BMW 328i, front and rear, without electronic suspension; B12 (Sportline)
• Fits 2014-2016 BMW 428i, front and rear, without electronic suspension; B12 (Sportline)

Common Issues This Kit Addresses

• Excessive factory ride height on select BMW 320i, 328i, 330i, and 430i models
• Uneven suspension response after lowering with mismatched components
• Reduced body control during cornering and braking
• Need for a fixed-height lowering solution with matched damping and spring rates
• Worn original suspension components on vehicles being refreshed with a sport setup

Installation Notes

Verify that the vehicle does not have electronic suspension before ordering or installing this kit. This B12 (Sportline) package is specified for front and rear use and should be installed as a complete matched set to preserve the intended ride height and damping balance. Confirm application details against the vehicle’s suspension configuration before service.

Quality Assurance

Bilstein B12 (Sportline) kits are built around Bilstein Performance dampers and application-specific spring pairing for consistent fitment and suspension behavior. The monotube damper construction supports stable damping performance across the listed BMW applications.