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Bilstein B4 Strut Cartridge/Insert; Front | 21-030390

Audi A6 Quattro, S6, A6
In Stock Status
In Stock Information Icon
Leaves warehouse within 1-2 business days.

Make Sure It Fits

P/N: 21-030390 Bilstein B4 OEM FREE SHIPPING
2 per car.
Cross References:
  • 441413031G
  • 441413031N
  • 443412031F
  • 443413031E
  • 443413031F
  • 443413031G
  • 4A0413031
  • 4A0413031D
  • 4A0413031J
  • F4PNE3039BG
Left = Driver side and Right = Passenger side.
All parts are priced individually unless identified as a set or kit. "Per car" notes identify how many of a given part your car has and "Left/Right or Front/Rear" notes means the part fits the left or right side of the car. These parts are still sold individually and you'll need to select the appropriate quantity if you plan to replace more than one of this item.

Proposition 65 Warning WARNING: This product can expose you to chemicals, which are known to the State of California to cause cancer and birth defects or other reproductive harm.  For more information go to

Frequently Viewed Together

We found 5 additional part(s) that are frequently viewed together.

Why Buy OEM & Genuine Replacement Auto Parts from AutohausAZ?

Auto parts at wholesale prices is what you will find at AutohausAZ. Have you been searching the web for auto parts for your vehicle? You have come to the right place! Here at Autohaus, we strive to offer low prices on quality replacement parts and providing first rate customer service.

What This Bilstein B4 Strut Cartridge/Insert Fits?

Application information below is for reference only and should not be used to determine the exact vehicle fitment. Please use the "Make Sure It Fits" vehicle selection box above to determine the exact fitment and review any application notes. If you need any help determining if this part works with your vehicle, please don't hesitate to contact us.

95-97 - A6
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98-98 - A6 Quattro
Front ~ 12V B4 OE Replacement TwinTube Gas Pressure; Cylinder Head Type: SOHC; Valvesper Engine: 12
95-97 - A6 Quattro
Front ~ B4 OE Replacement TwinTube Gas Pressure
95-95 - S6
Front ~ B4 OE Replacement TwinTube Gas Pressure