Bilstein B4 OE Replacement Shock Absorber

2019–2021 BMW 330i Rear

Part #: 19-303314

Overview

The Bilstein B4 OE Replacement shock absorbers are designed to restore and maintain the original ride quality of your BMW 330i. Engineered with precision and backed by Bilstein’s renowned reputation for durability and performance, these dampers are the perfect choice for drivers seeking to preserve their vehicle’s factory handling and comfort. Whether your shocks are worn out or you’re performing routine maintenance, the B4 OE Replacement shocks provide a reliable solution to keep your BMW driving like new.

Ideal for daily drivers and enthusiasts alike, these shocks help support consistent handling, improved stability, and ride comfort. They are engineered to meet or exceed OE standards, ensuring your vehicle maintains its factory specifications for performance, safety, and comfort. With Bilstein’s commitment to quality, you can trust these shocks to deliver long-lasting performance and a smooth driving experience.

Key Features

The Bilstein B4 OE Replacement shocks incorporate advanced engineering and high-quality materials to deliver a seamless driving experience that closely matches the original factory setup. Here are some of the key features:

• OE-quality construction with durable steel housings and high-performance piston rods for long-lasting reliability.
• Gas-pressure technology ensures consistent damping performance, reducing body roll and improving handling stability.
• Precisely engineered to meet or exceed OE specifications, maintaining your vehicle’s original ride height and handling characteristics.
• Bilstein’s proprietary monotube design provides excellent heat dissipation, ensuring consistent performance even during spirited driving or extended use.
• Designed for easy bolt-on installation, utilizing factory mounting points without the need for modifications.
• Maintains factory ride comfort while restoring optimal handling and stability.
• Manufactured with strict quality control standards to ensure durability and performance in various driving conditions.
• Backed by Bilstein’s reputation for innovation and excellence in suspension technology.

Construction & Design

The Bilstein B4 OE Replacement shocks feature a robust monotube design that enhances heat dissipation and damping consistency. The housings are made from high-strength steel, ensuring durability and resistance to corrosion. The piston rods are precision-machined and coated to reduce friction and wear, providing smooth operation over the lifespan of the shock. The internal gas-pressure system guarantees consistent damping force, which helps maintain vehicle stability and ride comfort under various load and road conditions.

Designed with exacting tolerances, these shocks fit perfectly into your BMW 330i’s existing suspension system. The engineering process involves CAD development and rigorous testing to ensure that each shock absorber meets or exceeds OE standards, delivering factory-like performance and longevity. The result is a suspension component that restores your vehicle’s original handling characteristics while providing the durability needed for everyday driving.

Installation & Fitment

The Bilstein B4 OE Replacement shocks are designed as direct bolt-on replacements for your BMW 330i’s rear suspension. Installation is straightforward for experienced DIY enthusiasts or professional mechanics, as they utilize the factory mounting points and hardware. No cutting, drilling, or modifications are required. The shocks are engineered to fit precisely, ensuring a hassle-free installation process that restores your vehicle’s original handling and ride quality.

• Easy bolt-on installation using factory mounting points
• No special tools or modifications needed
• Designed to match OE specifications for perfect fitment

What's Included

• Rear shock absorber assembly (left or right as specified)
• Mounting hardware and bushings (if applicable)
• Installation instructions

Ideal For

• BMW 330i owners seeking to restore factory ride quality
• Drivers experiencing worn or leaking shocks
• Enthusiasts maintaining original handling and comfort
• Routine suspension maintenance for longevity and performance