# Bilstein 21-216381 B4 Series Twintube Strut Insert for 1989-1991 Bmw 325Ix

### 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. Standard Suspension.

### Key Features

-   B4 Series OE Replacement Suspension Strut Cartridge

### Vehicle Fitment

-   1989 Bmw 325Ix (Note: Base; Sedan (4 Door))
-   1990 Bmw 325Ix (Note: Base)
-   1991 Bmw 325Ix (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 21-216381.

**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 325Ix
-   21-216381 fitment
-   Bilstein B4 Series Twintube Strut Insert
-   1989 Bmw 325Ix B4 Series Twintube Strut Insert

### Vehicle Fitment Table

Year

Make

Model

Position

Fitment Precision

Note

1989

Bmw

325Ix

Base; Sedan (4 Door)

1990

Bmw

325Ix

Base

1991

Bmw

325Ix

Base

## Details

- **Price:** 142.56 CAD
- **Vendor:** Bilstein
- **Type:** B4 Series Twintube Strut Insert
- **Tags:** 1989 Bmw 325Ix, 1990 Bmw 325Ix, 1991 Bmw 325Ix, 21-216381, Automotive Parts, B4 Series Twintube Strut Insert, Bilstein, Bilstein Suspension, Direct Replacement, Performance Suspension

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 142.56 CAD | In stock |

## Images

- Bilstein 21-216381 B4 Series Twintube Strut Insert for 1989-1991 Bmw 325Ix

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> Source: [Standard Auto Part](www.standardautopart.com/products/bilstein-bmw-325ix-suspension-strut-21-216381)
> Updated: 2026-06-15