Bilstein 22-139931 Front Left B4 OE Strut for 99-05 BMW 3 Series E46 (Front)

Vehicle Fitment

• 1999-2005 BMW 3 Series (E46) Front Left - includes sedan, coupe, compact, and convertible with sport or standard suspension

Features

• OE-replacement front left suspension strut engineered to restore factory ride comfort
• Bilstein B4 Series twin-tube gas-pressure design for reliable damping performance
• Direct bolt-in replacement at original suspension mounting points
• Fixed spring seat included for seamless integration with factory springs
• Durable black corrosion-resistant finish for long service life
• Sold individually - recommended to replace both left and right for balanced suspension performance
• Engineered to meet or exceed original damping specifications
• Ideal for restoring ride quality after worn strut removal

Specifications

• Brand: Bilstein B4 OE Replacement
• Position: Front left strut assembly
• Design: Twin-tube gas-pressure suspension strut
• Upper Mount Type: Stem
• Lower Mount Type: Base cup
• Extended Length: ~20.91 in (531 mm)
• Collapsed Length: ~14.76 in (375 mm)
• Finish: Black paint
• Spring Seat: Fixed and included

Included Components

• 1x Bilstein 22-139931 front left strut assembly

Product Description

The Bilstein 22-139931 B4 OE Replacement front left strut assembly is engineered to restore original ride comfort, handling balance, and suspension performance on supported BMW 3 Series E46 vehicles. This direct-fit strut features a twin-tube gas-pressure design with a fixed spring seat, helping maintain predictable damping behavior and smooth ride quality across everyday driving conditions.

This front left strut fits the front suspension of **BMW 3 Series E46 models from 1999 through 2005**, including sedans, coupes, compacts, and convertibles with standard or sport suspension setups. It installs using the original front suspension mounting points, requires no modifications, and integrates with factory springs. Sold individually, it's recommended to replace both the left and right front struts together to ensure balanced suspension performance and consistent handling.