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Product Overview

Bilstein B4 Rear Gas Shock Absorber

Item Specifics for 20-238933

Fitting PositionRear Axle
Shock Absorber TypeGas Pressure
Shock Absorber DesignAbsorber does not carry a spring
Shock Absorber Mounting TypeBottom eye, Top pin
Suspensionfor vehicles with electronic suspension control
Shock Absorber SystemTwin-Tube
Box Length680 millimeters
Box Width155 millimeters
Box Height155 millimeters

Bilstein B4 Shock Absorbers

  • Gas-pressure shock absorbers with over 60 years of development.
  • Available for various passenger car and LCV models.
  • High power reserves for safety.
  • Constant damping power under any load.
  • Precise handling with gas-pressure technology.
  • Comprehensive product range.

OE Number

OE reference number(s) compatible with the original spare part number (OEM):

  • 37 12 6 793 877 - BMW
  • 37 12 6 793 911 - BMW
  • 37 12 6 852 927 - BMW
  • 37 12 6 864 755 - BMW
  • 37 12 6 865 569 - BMW
  • 37 12 6 866 517 - BMW
  • 37 12 6 874 513 - BMW
  • 37 12 6 874 514 - BMW
  • 37 12 6 874 522 - BMW
  • 371 268 515 57 - BMW
  • 3712 6 857 963 - BMW
  • 3712 6 861 777 - BMW
  • 3712 6 865 541 - BMW
  • 6 793 877 - BMW
  • 6 793 911 - BMW
  • 6 852 927 - BMW
  • 6 857 963 - BMW
  • 6 861 777 - BMW
  • 6 864 755 - BMW
  • 6 865 541 - BMW
  • 6 865 569 - BMW
  • 6 866 517 - BMW
  • 6 874 513 - BMW
  • 6 874 514 - BMW
  • 6 874 522 - BMW

Please note that the final compatibility check can only be confirmed using the OEM (Original Equipment Manufacturer) number. Our product descriptions include only technical specifications and cannot guarantee compatibility with a specific vehicle. Before placing an order, ensure you verify the OEM number provided in the item description.

Delivery

To see an estimated delivery date, choose from the delivery options below:

Estimated Delivery: 27th Jan 2026 To 28th Jan 2026

Upon receiving your order, please promptly inspect the goods. If you discover any defects or issues, notify us immediately for possible replacement.

Goods returned within 14 days in unused condition with original packaging qualify for a full refund. After 14 days, a re-stocking fee may apply. Include return reason and invoice number in your parcel.

Delivery times and charges are provided during the ordering process. While we aim for timely delivery, unforeseen delays may occur. TDC Automotive is not liable for delivery delays or failures.

Shipping Options

  • UK: 2nd Class, 1st Class, Recorded, 24hr Courier
  • International: Standard Airmail, International Signed For, Express Courier

Most items ship within 2 working days; we'll notify you of any delays within 24 hours.

For international orders, be aware of potential import duties and taxes in your country. Check with your local customs office before ordering.