Bilstein 986-333-051-20 B4 OEM Replacement Rear Shock Absorber

The Bilstein 986-333-051-20 is a Bilstein B4 OEM-replacement rear gas shock absorber engineered to restore factory ride quality and handling characteristics. Designed as a direct-fit, twin-tube gas-pressure unit, this shock absorber delivers consistent damping performance that precisely matches the original equipment specification.

Key Features:

• Bilstein B4 Series: Manufactured to the same specifications and quality standards as the original factory shock absorber
• Twin-Tube Gas Pressure Technology: Ensures constant damping force under varying loads and driving conditions
• OE-Matched Dimensions: Drop-in fitment with no ride height change or registration required
• Factory-Spec Tuning: Restores original vehicle handling, stability, and ride comfort
• High-Durability Construction: Subjected to rigorous long-term stress, salt spray, and scratch testing
• Rear Position: Sold individually; two units required per vehicle (one per side)

The Bilstein B4 is the trusted choice for restoring OEM suspension performance. Its gas-pressure damping technology maintains precise control and safety across everyday driving scenarios — from city traffic to highway cruising — without requiring additional spring modifications. This part is compatible with Porsche Boxster (986) models with standard suspension (without M030 sport suspension option).