Bilstein B4 OE Replacement Suspension Shock Absorber

2020–2021 BMW M340i

Part #: 19-323305

Overview

The Bilstein B4 OE Replacement Shock Absorbers are designed specifically for the 2020-2021 BMW M340i, providing a direct fit replacement that restores your vehicle's original ride quality and handling characteristics. Engineered with precision and backed by Bilstein's renowned reputation for quality and durability, these dampers are ideal for drivers seeking to maintain or restore their vehicle's factory performance without compromise.

Whether you're a daily driver, a spirited enthusiast, or someone who demands consistent, reliable handling, the Bilstein B4 OE Replacement shocks deliver a seamless driving experience. They help ensure your BMW maintains its factory ride comfort, handling, and safety standards, all while providing the durability needed for long-term performance.

Key Features

The Bilstein B4 OE Replacement Dampers incorporate advanced engineering and high-quality materials to deliver exceptional performance that meets or exceeds OE specifications. These shocks are built to restore the original handling and comfort of your BMW M340i, ensuring your vehicle responds predictably and confidently on the road.

• Manufactured by Bilstein, a leader in suspension technology with over 60 years of experience
• Precisely engineered to match OEM standards for fitment and performance
• High-quality steel construction with corrosion-resistant coatings for durability
• Optimized valving for balanced ride comfort and handling
• Direct bolt-on replacement—no modifications required
• Restores factory ride height and damping characteristics
• Designed to meet or exceed OE safety and performance standards
• Ideal for restoring original handling after suspension repairs or upgrades
• Backed by Bilstein's reputation for reliability and performance

Construction & Design

The Bilstein B4 OE Replacement shocks feature a robust steel body with a corrosion-resistant coating, ensuring long-lasting performance even in challenging driving conditions. The internal valving is precisely calibrated to match the factory damping characteristics of the BMW M340i, providing a smooth, controlled ride that maintains the vehicle's original handling traits. The design incorporates Bilstein's proprietary monotube construction, which offers consistent damping performance and heat dissipation, enhancing durability and ride quality over time.

Every component is engineered for a perfect fit and seamless installation, ensuring your vehicle's suspension system functions as intended. The shocks are manufactured with strict quality control standards, guaranteeing reliable performance and safety.

Performance & Ride Quality

The Bilstein B4 OE Replacement Shock Absorbers are engineered to restore the factory ride and handling of your BMW M340i. They provide excellent control, stability, and comfort, whether you're navigating city streets or winding roads. These dampers help maintain optimal tire contact with the road, improving traction and safety. While they do not increase performance beyond factory specs, they ensure your vehicle performs as originally designed, providing confidence and peace of mind.

Installation & Fitment

The Bilstein B4 OE Replacement shocks are designed as direct bolt-on replacements for the original equipment. Installation is straightforward for experienced DIY enthusiasts or professional technicians, with no modifications, cutting, or drilling required. The shocks are compatible with the original mounting points and hardware, ensuring a hassle-free installation process. For optimal results, it is recommended to replace shocks in pairs to maintain balanced handling and ride quality.

• Easy, direct-fit installation
• No special tools or modifications needed
• Designed to restore factory ride height and handling

What's Included

• Pair of Bilstein B4 OE Replacement Shock Absorbers for the front and rear suspension
• Mounting hardware and instructions

Ideal For

• BMW M340i owners seeking to restore factory ride quality and handling
• Drivers needing replacement shocks for worn or damaged OE dampers
• Enthusiasts who want to maintain original suspension performance
• Anyone performing suspension repairs or upgrades to their BMW