Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE Standards.

These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world-famous Bilstein quality.

Details:

• Series: B4 OE Replacement
• Internal Design: Twintube
• Position: Front Left
• Lower Mount Type: Base Cup
• Upper Mount Type: Stem
• Collapsed Length Inch: 13.8
• Collapsed Length mm: 350.5
• Boot Included : No
• Extended Length Inch: 20.14
• Extended Length mm: 511.5
• Finish: Black Paint
• Notes: Sport Suspension without Electronic Suspension
• Applications: BMW 330i xDrive 2024-2019, 430i xDrive 2025-2021, M340i xDrive 2024-2020, M440i xDrive 2025-2021
• Interchange: 31 31 6 879 311, 31 31 6 879 313
• Warranty: Limited Lifetime Warranty