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

SKU 21-030406

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.

Read Reviews

$75.00 Free Ship!

Check if this fits your vehicle.

Qty Spin Up Spin Down * *

Typically ships in 10 to 14 business days.

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
Spring Seat Included: No
Title: Bilstein Shock Absorbers
Upper Mount Type: Stem
Part Interchange:
- Bilstein: PNE-3040; F4-PNE-3040-BE
- Sachs: 100 594; 100 594; 100 594; 100 594; 100 594
- KYB Shocks & Struts: 365500; 365500; 365500; 365500; 365500
- Volkswagen: 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; 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; 811 413 503 F; 893 413 503 C; 893 413 503 P; 811 413 503 G; 321 413 503 B; 827 412 031 A; 321 413 503; 855 413 503 C; 811 413 503 H; 893 413 503 C; 811 413 503 F; 893 413 503 C; 811 413 503 G; 321 413 503 B; 827 412 031 A; 893 413 503 P; 321 413 503; 855 413 503 C; 811 413 503 H; 827 412 031 A; 893 413 503 P; 811 413 503 F; 321 413 503; 893 413 503 C; 811 413 503 G; 855 413 503 C; 321 413 503 B; 811 413 503 H

Ask an Expert

customer service Our Michigan based experts can help.

1.800.358.4751
Email

Hours

M-F 7:00AM - 11:00PM EST

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.

Audi
Volkswagen

Year	Make	Model	Installation Notes
1975	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter
1975	Audi	Fox Base	Position: Front 50mm Outside Strut Diameter
1976	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter
1976	Audi	Fox Base	Position: Front 50mm Outside Strut Diameter
1977	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter
1977	Audi	Fox Base	Position: Front 50mm Outside Strut Diameter
1978	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter
1978	Audi	Fox Base	Position: Front 50mm Outside Strut Diameter
1979	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter
1979	Audi	Fox Base	Position: Front 50mm Outside Strut Diameter
1980	Audi	4000 Base	Position: Front
1980	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter
1981	Audi	4000 Base	Position: Front
1981	Audi	Coupe Base	Position: Front 50mm Outside Strut Diameter
1981	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter
1982	Audi	4000 S	Position: Front
1982	Audi	4000 Base	Position: Front
1982	Audi	4000 GT	Position: Front
1982	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
1983	Audi	4000 S	Position: Front
1983	Audi	4000 Base	Position: Front
1983	Audi	4000 GT	Position: Front
1983	Audi	Coupe Base	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	Audi	Coupe GT	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
1987	Audi	Coupe GT	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	Audi	80 Base	Position: Front Standard Suspension 50mm Outside Strut Diameter
1988	Volkswagen	Quantum GL	Position: Front 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
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 S	Position: Front
1985	Audi	4000 S	Position: Front
1986	Audi	4000 S	Position: Front
1987	Audi	4000 S	Position: Front
1984	Audi	4000 Quattro S	Position: Front 50mm Outside Strut Diameter
1985	Audi	4000 Quattro S	Position: Front 50mm Outside Strut Diameter
1984	Audi	Coupe Base	Position: Front 50mm Outside Strut Diameter
1985	Audi	Coupe 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
1973	Audi	Fox Base	Position: Front 50mm Outside Strut Diameter
1974	Audi	Fox Base	Position: Front 50mm Outside Strut Diameter
1974	Volkswagen	Dasher Base	Position: Front 50mm Outside Strut Diameter

Customer Q&A - Bilstein 21-030406

Ask A Question

Bilstein

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 B3 OE Replacement, B1 OE Replacement (Air), B8 5160 , B8 5160 Classic, B8 5162, B8 8100, B8 8100 (Bypass) , B8 8100 (Bypass) , B8 8112 (ZoneControl CR), B8 8100 (ZoneControl R)

Lifetime Limited Warranty - On gas pressure shock absorbers and struts for as long as you, the original purchaser, own your car. B3 OE Replacement (Air), B6 Series, B8 5100 Series, B8 5112 Series, B8 6100 Series, B8 Control Arms, B8 Performance Plus, B12 Series.

90 Day Limited Warranty - On AK Series, AS2 Series, AS2-R Series, AS2 Series, AS2-R Series, B1 (Components), B8 5125, B8 5165, B8 5165 Classic, B8 8125, BILSTEIN Clubsport, Black Hawk Powersports.

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.