# Bilstein 21-030444 B4 Series Twintube Strut Insert for 1983-1998 Audi 80 and More ### Performance Overview Bilstein B4 Shocks and Struts are ideal as OEM replacements, and are made to guarantee factory quality performance. They feature a large-diameter body, and rely on track-proven and road ready suspension technologies. The shocks are available in a classic black finish, and are backed by a limited lifetime warranty. Sport Suspension with 50mm Outside Strut Diameter. ### Key Features - B4 Series OE Replacement Suspension Strut Cartridge ### Vehicle Fitment - 1988 Audi 80 (Note: Base) - 1989 Audi 80 (Note: Base) - 1990 Audi 80 (Note: Base) - 1991 Audi 80 (Note: Base) - 1992 Audi 80 (Note: Base) - 1988 Audi 80 Quattro (Note: Base) - 1989 Audi 80 Quattro (Note: Base) - 1990 Audi 80 Quattro (Note: Base) ### FAQ **Will this fit my vehicle?** Please verify your year, make, model, position, and any fitment notes using the compatibility list above before purchase. **What part number is this?** The listed part number is 21-030444. **Is this product designed for direct replacement?** Yes. This product is intended to match compatible vehicle applications listed in the fitment section. **Should I confirm fitment before ordering?** Yes. Always compare your original part, position, and vehicle details with the fitment chart before ordering. ### Common Searches - B4 Series Twintube Strut Insert for Audi 80 - 21-030444 fitment - Bilstein B4 Series Twintube Strut Insert - 1988 Audi 80 B4 Series Twintube Strut Insert ### Vehicle Fitment Table Year Make Model Position Fitment Precision Note 1988 Audi 80 Base 1989 Audi 80 Base 1990 Audi 80 Base 1991 Audi 80 Base 1992 Audi 80 Base 1988 Audi 80 Quattro Base 1989 Audi 80 Quattro Base 1990 Audi 80 Quattro Base 1991 Audi 80 Quattro Base 1992 Audi 80 Quattro Base 1988 Audi 90 Base 1989 Audi 90 Base 1990 Audi 90 Base 1991 Audi 90 Base 1993 Audi 90 Cs, S 1994 Audi 90 Cs, S 1995 Audi 90 Base, Sport 1988 Audi 90 Quattro Base 1989 Audi 90 Quattro Base 1990 Audi 90 Quattro 20V 1991 Audi 90 Quattro 20V 1993 Audi 90 Quattro Cs 1994 Audi 90 Quattro Cs 1995 Audi 90 Quattro Base, Sport 1994 Audi Cabriolet Base 1995 Audi Cabriolet Base 1996 Audi Cabriolet Base 1997 Audi Cabriolet Base 1998 Audi Cabriolet Base 1990 Audi Coupe Quattro 20V 1991 Audi Coupe Quattro 20V 1983 Audi Quattro Base 1984 Audi Quattro Base 1985 Audi Quattro Base ## Details - **Price:** 111.97 CAD - **Vendor:** Bilstein - **Type:** B4 Series Twintube Strut Insert - **Tags:** 1983 Audi Quattro, 1984 Audi Quattro, 1985 Audi Quattro, 1988 Audi 80, 1988 Audi 80 Quattro, 1988 Audi 90, 1988 Audi 90 Quattro, 1989 Audi 80, 1989 Audi 80 Quattro, 1989 Audi 90, 1989 Audi 90 Quattro, 1990 Audi 80, 1990 Audi 80 Quattro, 1990 Audi 90, 1990 Audi 90 Quattro, 1990 Audi Coupe Quattro, 1991 Audi 80, 1991 Audi 80 Quattro, 1991 Audi 90, 1991 Audi 90 Quattro, 1991 Audi Coupe Quattro, 1992 Audi 80, 1992 Audi 80 Quattro, 1993 Audi 90, 1993 Audi 90 Quattro, 1994 Audi 90, 1994 Audi 90 Quattro, 1994 Audi Cabriolet, 1995 Audi 90, 1995 Audi 90 Quattro, 1995 Audi Cabriolet, 1996 Audi Cabriolet, 1997 Audi Cabriolet, 1998 Audi Cabriolet, 21-030444, Automotive Parts, B4 Series Twintube Strut Insert, Bilstein, Bilstein Suspension, Direct Replacement, Performance Suspension ## Variants | Variant | Price | Available | |---------|-------|-----------| | Default Title | 111.97 CAD | In stock | ## Images - Bilstein 21-030444 B4 Series Twintube Strut Insert for 1983-1998 Audi 80 and More --- > Source: [Standard Auto Part](www.standardautopart.com/products/bilstein-audi-80-suspension-strut-21-030444) > Updated: 2026-06-15