SKU: 21-030512 | UPC: 651860430881
Bilstein B4 1982-1989 BMW 5 Series Front Twintube Strut Insert
Bilstein 21-030512 B4 OE Replacement strut cartridge fits 1982-1988 BMW 528e Base as well as 1983-1989 BMW 533i 535i 635CSi models. This damper maintains factory ride comfort while meeting OE standards for handling and safety. It delivers high power reserves for consistent performance on the road.
Key Features
- OE Replacement Design: Engineered to match original equipment specifications
- Gas Pressure Technology: Provides stable damping under varying loads
- Monotube Construction: Improves heat dissipation for longer service life
- Direct Fit: Installs without modifications to stock suspension
- Comfort Restoration: Returns original driving feel and response
- High Safety Reserves: Supports maximum vehicle control in daily use
Specifications
| Detail | Value |
|---|---|
| Brand | Bilstein |
| Type | Twintube Strut Insert |
| Compatibility | 1982-1989 BMW 5 Series and 6 Series |
| Part Number | 21-030512 |
| Country of Origin | Germany |
| Warranty | Manufacturer limited warranty |
Whats Included
- One front twintube strut insert
- Installation hardware as required
Product Notes
- Confirm fitment by vehicle year make and model before purchase
- Professional installation recommended for safety
- Replaces worn factory strut cartridge directly
This Part Fits
| Year Range | Make | Model | Notes |
|---|---|---|---|
| 1982-1988 | BMW | 528e Base | Front position |
| 1983-1984 | BMW | 533i Base | Front position |
| 1985-1988 | BMW | 535i Base | Front position |
| 1988 | BMW | 535is Base | Front position |
| 1983-1984 | BMW | 633CSi Base | Front position |
| 1985-1989 | BMW | 635CSi Base | Front position |
Why Choose Bilstein?
- Original equipment supplier to major German automakers
- Proven durability in daily driving conditions
- Restores factory handling precision and comfort
- Worldwide distribution and support network
Frequently Asked Questions
- Q: Does this replace the entire strut assembly
- A: No it is a cartridge insert for the existing strut housing
- Q: Is this part sold individually or in pairs
- A: Sold individually one insert per strut
- Q: What vehicles does SKU 21-030512 fit
- A: Multiple 1982-1989 BMW 5 Series and 6 Series models listed above
Shipping & Handling
- Method: Ground shipping via standard carriers
- Availability: In stock ships same or next business day
- Packaging: Secure box for safe transit
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