Bilstein 986-333-051-31 Performance Rear Shock Absorber - B6

The Bilstein 986-333-051-31 is a B6 Performance rear gas pressure shock absorber engineered as a sport-tuned replacement damper for the Porsche Boxster 986. Designed specifically for vehicles equipped with the M030 sport suspension, this shock delivers the performance balance that Porsche drivers expect — enhanced handling without sacrificing everyday drivability.

Bilstein's B6 series utilizes a monotube, upside-down gas pressure design that keeps the thicker, more rigid portion of the shock body positioned to absorb lateral loads. This construction improves side-load handling versus conventional twin-tube designs and contributes to longer service life and consistent fade-free damping.

Key Features:

• Bilstein B6 Performance — sport-tuned damping for enhanced handling and stability
• Monotube gas pressure technology — consistent damping performance under all load conditions
• Digressive piston valve design — independent tuning of compression and rebound for optimum ride quality
• Induction-hardened, chrome-plated steel shaft — precision-machined for durability and long service life
• Seamless extruded shock body — treated with salt-spray-resistant paint finish (240-hour rating)
• Sport suspension specific — designed for Boxster 986 models equipped with M030 sport suspension option
• Direct OEM replacement — no modifications required for installation
• Sold individually — 2 required per vehicle
• Road and track tested by Bilstein engineers for precision fine-tuning
• Backed by Bilstein's lifetime warranty

Also cross-references as: 98633305131, 986.333.051.31, 22-046222. The Bilstein 986-333-051-31 is the correct sport suspension variant; for Boxster 986 models without the M030 sport suspension option, refer to part number 986-333-051-20.