# Bilstein 21-031144 B4 Series Twintube Strut Insert for 1990-1994 Bmw 735I 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. Without Electronic Damping Control.

### Key Features

-   B4 Series OE Replacement Suspension Strut Cartridge

### Vehicle Fitment

-   1990 Bmw 735I (Note: Base)
-   1991 Bmw 735I (Note: Base)
-   1992 Bmw 735I (Note: Base)
-   1990 Bmw 735Il (Note: Base)
-   1991 Bmw 735Il (Note: Base)
-   1992 Bmw 735Il (Note: Base)
-   1993 Bmw 740I (Note: Base)
-   1994 Bmw 740I (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 21-031144.

**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 735I
-   21-031144 fitment
-   Bilstein B4 Series Twintube Strut Insert
-   1990 Bmw 735I B4 Series Twintube Strut Insert

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1990

Bmw

735I

Base

1991

Bmw

735I

Base

1992

Bmw

735I

Base

1990

Bmw

735Il

Base

1991

Bmw

735Il

Base

1992

Bmw

735Il

Base

1993

Bmw

740I

Base

1994

Bmw

740I

Base

1993

Bmw

740Il

Base

1994

Bmw

740Il

Base

1990

Bmw

750Il

Base

1991

Bmw

750Il

Base

1992

Bmw

750Il

Base

1993

Bmw

750Il

Base

1994

Bmw

750Il

Base

## Details

- **Price:** 186.37 CAD
- **Vendor:** Bilstein
- **Type:** B4 Series Twintube Strut Insert
- **Tags:** 1990 Bmw 735I, 1990 Bmw 735Il, 1990 Bmw 750Il, 1991 Bmw 735I, 1991 Bmw 735Il, 1991 Bmw 750Il, 1992 Bmw 735I, 1992 Bmw 735Il, 1992 Bmw 750Il, 1993 Bmw 740I, 1993 Bmw 740Il, 1993 Bmw 750Il, 1994 Bmw 740I, 1994 Bmw 740Il, 1994 Bmw 750Il, 21-031144, Automotive Parts, B4 Series Twintube Strut Insert, Bilstein, Bilstein Suspension, Direct Replacement, Performance Suspension

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 186.37 CAD | In stock |

## Images

- Bilstein 21-031144 B4 Series Twintube Strut Insert for 1990-1994 Bmw 735I and More

---

> Source: [Standard Auto Part](www.standardautopart.com/products/bilstein-bmw-735i-suspension-strut-21-031144)
> Updated: 2026-06-15