Bilstein 3C0-413-031 AS B4 OE Replacement Front Suspension Strut

The Bilstein 3C0-413-031 AS is a B4 OE Replacement front suspension strut engineered as a direct, factory-correct replacement for European VAG-platform vehicles. Built to Bilstein's world-renowned standards, this strut restores original ride quality, handling precision, and long-term durability without the guesswork of aftermarket alternatives.

This strut utilizes a twin-tube, gas pressure internal design with a 55mm outer housing diameter and a fixed spring seat, allowing it to work seamlessly with the factory coil spring, bump stop, and upper mount hardware.

Key Features:

• B4 OE Replacement Series — engineered to meet or exceed original equipment standards
• Twin-tube gas pressure design for consistent damping and a smooth, controlled ride
• 55mm outer housing diameter with fixed spring seat included
• Front axle application with stem-type upper mount
• Black paint finish for corrosion resistance
• Direct bolt-on replacement — uses factory spring, bump stop, and hardware
• Manufactured by Bilstein to OEM-level quality and tolerances

OEM Cross-Reference Numbers: 3C0 413 031 AS, 3C0 413 031 AE, 3C0 413 031 AA, 3C0 413 031 AB, 3C0 413 031 AC, 3C0 413 031 AH, 3C0 413 031 AL, 3C0 413 031 AQ, 3C0 413 031 AT, 3C0 413 031 A, 3C0 413 031 E, 3C0 413 031 J, 3C0 413 031 L, 3AA 413 031 M

The Bilstein B4 series is the ideal solution for drivers seeking to restore the original performance and feel of their vehicle's suspension system. Bilstein part number 22-151056 is the corresponding Bilstein catalog number for this OEM reference.