# Bilstein 21-030512 B4 Series Twintube Strut Insert for 1982-1989 Bmw 528E 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.

### Key Features

-   B4 Series OE Replacement Suspension Strut Cartridge

### Vehicle Fitment

-   1982 Bmw 528E (Note: Base)
-   1983 Bmw 528E (Note: Base)
-   1984 Bmw 528E (Note: Base)
-   1985 Bmw 528E (Note: Base)
-   1986 Bmw 528E (Note: Base)
-   1987 Bmw 528E (Note: Base)
-   1988 Bmw 528E (Note: Base)
-   1983 Bmw 533I (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 21-030512.

**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 Bmw 528E
-   21-030512 fitment
-   Bilstein B4 Series Twintube Strut Insert
-   1982 Bmw 528E B4 Series Twintube Strut Insert

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1982

Bmw

528E

Base

1983

Bmw

528E

Base

1984

Bmw

528E

Base

1985

Bmw

528E

Base

1986

Bmw

528E

Base

1987

Bmw

528E

Base

1988

Bmw

528E

Base

1983

Bmw

533I

Base

1984

Bmw

533I

Base

1985

Bmw

535I

Base

1986

Bmw

535I

Base

1987

Bmw

535I

Base

1988

Bmw

535I

Base

1988

Bmw

535Is

Base

1983

Bmw

633Csi

Base

1984

Bmw

633Csi

Base

1985

Bmw

635Csi

Base

1986

Bmw

635Csi

Base

1987

Bmw

635Csi

Base

1988

Bmw

635Csi

Base

1989

Bmw

635Csi

Base

## Details

- **Price:** 129.35 CAD
- **Vendor:** Bilstein
- **Type:** B4 Series Twintube Strut Insert
- **Tags:** 1982 Bmw 528E, 1983 Bmw 528E, 1983 Bmw 533I, 1983 Bmw 633Csi, 1984 Bmw 528E, 1984 Bmw 533I, 1984 Bmw 633Csi, 1985 Bmw 528E, 1985 Bmw 535I, 1985 Bmw 635Csi, 1986 Bmw 528E, 1986 Bmw 535I, 1986 Bmw 635Csi, 1987 Bmw 528E, 1987 Bmw 535I, 1987 Bmw 635Csi, 1988 Bmw 528E, 1988 Bmw 535I, 1988 Bmw 535Is, 1988 Bmw 635Csi, 1989 Bmw 635Csi, 21-030512, Automotive Parts, B4 Series Twintube Strut Insert, Bilstein, Bilstein Suspension, Direct Replacement, Performance Suspension

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 129.35 CAD | In stock |

## Images

- Bilstein 21-030512 B4 Series Twintube Strut Insert for 1982-1989 Bmw 528E and More

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/bilstein-bmw-528e-suspension-strut-21-030512)
> Updated: 2026-07-06