Bilstein 21-030406 | Bilstein Suspension Strut Cartridge
+1-989-755-0561 1-800-358-4751

Bilstein 21-030406 | B4 OE Replacement | Suspension Strut Cartridge

SKU 21-030406

$65.00 Free Ship!
 
Typically ships in 7 to 10 business days.

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.

Product Specs for Bilstein 21-030406

  • Instructions:Installation Instructions
  • SeriesB4 OE Replacement
  • Warranty:Bilstein Warranty
  • UPC: 651860430744
  • MPN: 21-030406
  • Boot Included: No
  • California Proposition 65: WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov
  • Finish: Black Paint
  • Internal Design: Twintube
  • Lower Mount Type: Housing
  • Series: B4 OE Replacement
  • Upper Mount Type: Stem
  • Part Interchange:
    • Bilstein: PNE-3040; F4-PNE-3040-BE
    • Sachs: 100 594; 100 594
    • KYB Shocks & Struts: 365500; 365500
    • Volkswagen: 893 413 503 C; 827 412 031 A; 811 413 503 G; 855 413 503 C; 893 413 503 P; 811 413 503 F; 321 413 503; 321 413 503 B; 811 413 503 H; 893 413 503 C; 827 412 031 A; 811 413 503 G; 855 413 503 C; 893 413 503 P; 811 413 503 F; 321 413 503; 321 413 503 B; 811 413 503 H
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Bilstein 21-030406 Details

Bilstein B4 OE Replacement Shocks and Struts

Bilstein B4 OE Replacement dampers are specifically engineered to be the top choice for preserving the original factory ride quality of your vehicle, while meeting or exceeding OE standards. These shocks and struts 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. They have been developing gas pressure shocks and struts for car manufacturers all over the world for over 60 years, so if you are planning on replacing your suspension components and want to keep the factory ride, we highly recommend Bilstein B4.

Bilstein B4 Features:
  • Gas-pressure technology provides maximum traction, precise handling and safety.
  • Restores original ride characteristics.
  • Constant damping power under any load.
  • World-famous Bilstein quality.
  • Consistent performance and handling give the vehicle a new car feel.

Vehicle Application Guide for Bilstein 21-030406

The 21-030406 Bilstein 21-030406 | B4 OE Replacement | Suspension Strut Cartridge is engineered to work with specific vehicles displayed below. Can't find your vehicle, or need assistance, please give us a call at 1-800-358-4751 or 1-989-755-0561. Browse the category Bilstein Shocks to view all vehicle makes and models.

  • Audi
  • Volkswagen
YearMakeModelVehicle OptionInstallation Notes
1975 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1976 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1977 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1978 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1979 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1980 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1981 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1974 Volkswagen Dasher Base
Position: Front
50mm Outside Strut Diameter
1973 Audi Fox Base
Position: Front
50mm Outside Strut Diameter
1974 Audi Fox Base
Position: Front
50mm Outside Strut Diameter
1979 Audi Fox Base
Position: Front
50mm Outside Strut Diameter
1978 Audi Fox Base
Position: Front
50mm Outside Strut Diameter
1977 Audi Fox Base
Position: Front
50mm Outside Strut Diameter
1976 Audi Fox Base
Position: Front
50mm Outside Strut Diameter
1975 Audi Fox Base
Position: Front
50mm Outside Strut Diameter
1980 Audi 4000 Base
Position: Front
1981 Audi 4000 Base
Position: Front
1982 Audi 4000 S
Position: Front
1982 Audi 4000 Base
Position: Front
1982 Audi 4000 GT
Position: Front
1983 Audi 4000 S
Position: Front
1983 Audi 4000 Base
Position: Front
1983 Audi 4000 GT
Position: Front
1984 Audi 4000 S
Position: Front
1985 Audi 4000 S
Position: Front
1986 Audi 4000 S
Position: Front
1987 Audi 4000 S
Position: Front
1984 Audi Coupe Base
Position: Front
50mm Outside Strut Diameter
1985 Audi Coupe Base
Position: Front
50mm Outside Strut Diameter
1986 Audi Coupe GT
Position: Front
50mm Outside Strut Diameter
1983 Audi Coupe Base
Position: Front
50mm Outside Strut Diameter
1987 Audi Coupe GT
Position: Front
50mm Outside Strut Diameter
1982 Audi Coupe Base
Position: Front
50mm Outside Strut Diameter
1981 Audi Coupe Base
Position: Front
50mm Outside Strut Diameter
1982 Volkswagen Quantum GL
Position: Front
50mm Outside Strut Diameter
1982 Volkswagen Quantum Base
Position: Front
50mm Outside Strut Diameter
1987 Volkswagen Quantum GL
Position: Front
50mm Outside Strut Diameter
1987 Volkswagen Quantum Base
Position: Front
50mm Outside Strut Diameter
1988 Volkswagen Quantum GL
Position: Front
50mm Outside Strut Diameter
1983 Volkswagen Quantum GL
Position: Front
50mm Outside Strut Diameter
1983 Volkswagen Quantum Base
Position: Front
50mm Outside Strut Diameter
1984 Volkswagen Quantum GL
Position: Front
50mm Outside Strut Diameter
1984 Volkswagen Quantum Wolfsburg Edition
Position: Front
50mm Outside Strut Diameter
1985 Volkswagen Quantum GL
Position: Front
50mm Outside Strut Diameter
1985 Volkswagen Quantum Base
Position: Front
50mm Outside Strut Diameter
1986 Volkswagen Quantum GL
Position: Front
50mm Outside Strut Diameter
1986 Volkswagen Quantum Base
Position: Front
50mm Outside Strut Diameter
1983 Audi Quattro Base
Position: Front
Standard Suspension
50mm Outside Strut Diameter
1984 Audi Quattro Base
Position: Front
Standard Suspension
50mm Outside Strut Diameter
1985 Audi Quattro Base
Position: Front
Standard Suspension
50mm Outside Strut Diameter
1989 Audi 80 Base
Position: Front
Standard Suspension
50mm Outside Strut Diameter
1990 Audi 80 Base
Position: Front
Standard Suspension
1991 Audi 80 Base
Position: Front
Standard Suspension
1992 Audi 80 Base
Position: Front
Standard Suspension
1988 Audi 80 Base
Position: Front
Standard Suspension
50mm Outside Strut Diameter
1986 Audi 4000 Quattro CS
Position: Front
50mm Outside Strut Diameter
1987 Audi 4000 Quattro CS
Position: Front
50mm Outside Strut Diameter
1984 Audi 4000 Quattro S
Position: Front
50mm Outside Strut Diameter
1985 Audi 4000 Quattro S
Position: Front
50mm Outside Strut Diameter

Customer Q&A - Bilstein 21-030406


Proven design technology, a superior manufacturing process and a commitment to quality control characterize the Bilstein shock absorber production process. At Bilstein over 40% of the production personnel are involved with quality control to maintain their industry-leading level of shock absorber efficiency and long life performance.

In this pursuit of excellence, Bilstein has received worldwide acclaim for quality shock absorbers that have set new industry standards. Setting high standards has always been a top priority with Bilstein and a consistent set of parameters and performance guidelines go into the development of each Bilstein shock application.

For more information on Bilstein shock absorbers and struts, or call us at 1-800-358-4751.

Bilstein Warranty

If a shock/strut malfunctions and BILSTEIN determines it to be defective, Bilstein will either replace it or repair it, depending on the term of the warranty based on the assembly's model type.


2 Year Limited Warranty - On B4 OE Replacement (Air) / Steering Racks.

Lifetime Limited Warranty - On gas pressure shock absorbers and struts for as long as you, the original purchaser, own your car. This covers B4 OE Replacement, B6 and B6 Performance, B8 Performance Plus, B12 Series, B14, B16, B6 4600, B8 5100, B8 5100 (Ride Height Adjustable), B8 5112, and B8 6112.

90 Day Limited Warranty - On B8 5125, B8 5150, B8 5160, B8 5165, M 7100 Series, B8 8125, M 9100 Series, M 9300 Series, BILSTEIN Club sport series.

What the warranty does not cover

Original equipment shock absorbers: if your vehicle was equipped with BILSTEIN from the factory (original equipment) warranty claims must be directed to the vehicle manufacturer.*

Improper installation, racing, driving competition or off-road use, modified use or applications other than Bilstein recommended vehicles, commercial vehicles, bent or broken rods showing abuse or abnormal wear, surface finish, boot or mounting hardware, rubber bushings are not covered.

Labor charges are not covered by any of the foregoing limited warranties.

You can view the full details of Bilstein’s warranty here.


How to get service

If a Bilstein product fails as a result of a manufacturer defect, contact us at Michigan Truck Spring for support. You can contact us by phone at 1-800-358-4751 or by using our contact form.

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