Bilstein B4 OE Replacement Suspension Shock Absorber

2014–2017 BMW 640i xDrive

Part #: 19-227641

Overview

The Bilstein B4 OE Replacement Shock Absorbers are designed specifically for the 2014-2017 BMW 640i xDrive, offering a perfect balance of original ride quality and reliable performance. Engineered to meet or exceed OE standards, these dampers restore your vehicle's factory handling, comfort, and safety, making them an ideal choice for drivers seeking to maintain their BMW's refined driving experience. Whether you're replacing worn-out shocks or upgrading for peace of mind, the Bilstein B4 OE Replacement shocks deliver consistent, high-quality performance that keeps your vehicle handling at its best.

Built with precision and durability in mind, these shocks are suitable for daily driving, spirited road use, and maintaining the vehicle's original dynamics. With Bilstein's reputation for quality and innovation, you can trust these dampers to provide a smooth, controlled ride while supporting your vehicle's handling characteristics.

Key Features

The Bilstein B4 OE Replacement Dampers incorporate advanced engineering and high-quality materials to ensure optimal performance and longevity. Here are some of the key features that make these shocks a top choice for your BMW:

• OE-Equivalent Design: Precisely engineered to match the original factory specifications, ensuring seamless fitment and performance restoration.
• High-Quality Materials: Constructed with durable steel and corrosion-resistant coatings to withstand harsh driving conditions and extend service life.
• Gas Pressure Technology: Utilizes Bilstein's proven monotube gas pressure design for consistent damping performance, improved handling, and reduced fade during spirited driving.
• Restores Original Ride Quality: Maintains the factory ride comfort and handling characteristics, ensuring your BMW drives like new.
• Enhanced Safety and Stability: Provides reliable shock absorption to improve vehicle stability, braking, and cornering response.
• Easy Installation: Designed as direct OE replacements, these shocks install with minimal modifications, making them suitable for DIY enthusiasts and professional technicians alike.
• World-Famous Bilstein Quality: Backed by decades of experience in suspension technology, ensuring you receive a product built for performance and durability.

Construction & Design

The Bilstein B4 OE Replacement shocks feature a robust monotube design, which offers superior heat dissipation and consistent damping performance under various driving conditions. The shock bodies are made from high-strength steel, coated to resist corrosion and environmental wear. The piston rods are precision-machined for smooth operation and durability, ensuring reliable performance over the lifespan of the shock absorber. The design incorporates Bilstein's proprietary valving technology, which provides a comfortable ride while maintaining precise handling and control. These shocks are engineered to match the original specifications of your BMW, ensuring perfect fitment and performance that feels factory fresh.

Installation & Fitment

The Bilstein B4 OE Replacement Shock Absorbers are designed for a straightforward, bolt-on installation process. They utilize the factory mounting points and hardware, requiring no modifications, cutting, or drilling. Typically, installation can be completed with basic hand tools and a lift or jack stands. No special tuning or alignment adjustments are necessary beyond the standard procedures following shock replacement. Proper installation ensures optimal performance and longevity of the shocks, restoring your BMW's original handling characteristics.

• Direct OE replacement for 2014-2017 BMW 640i xDrive models
• Replaces worn or damaged factory shocks
• Installation typically takes 1-2 hours per side

What's Included

• Pair of Bilstein B4 OE Replacement Shock Absorbers (front and rear as applicable)
• All necessary mounting hardware and instructions

Ideal For

• BMW owners seeking to restore factory ride quality and handling
• Drivers replacing worn-out shocks for improved safety and comfort
• Enthusiasts maintaining original suspension performance