Bilstein B3 OE Replacement Coil Spring

2006 BMW 325i

Part #: 37-148508

Overview

The Bilstein B3 OE Replacement Coil Springs are engineered to restore your 2006 BMW 325i's suspension system to its original factory specifications. Designed specifically for BMW enthusiasts and daily drivers alike, these coil springs provide a seamless replacement for worn or damaged OEM springs, ensuring your vehicle maintains its intended ride height, handling, and safety standards. Whether you're restoring your vehicle after suspension wear or upgrading to OEM quality, these springs deliver reliable performance and peace of mind.

Manufactured with precision and attention to detail, the Bilstein B3 OE Replacement Coil Springs help support your vehicle's weight, absorb road shocks, and maintain optimal tire contact with the road surface. This results in a smooth, comfortable ride while preserving the factory handling characteristics that BMW drivers expect. Ideal for those seeking a direct OE replacement that maintains the vehicle's original driving dynamics, these springs are a perfect choice for restoring your BMW's suspension integrity.

Key Features

The Bilstein B3 OE Replacement Coil Springs incorporate advanced design features to ensure durability, precise fitment, and consistent performance. These springs are crafted to meet or exceed OE specifications, making them an excellent choice for restoring your vehicle's suspension to factory standards.

• Manufactured to exact OE dimensions, spring rates, and design types, including miniblock and central force configurations.
• Innovative technical designs such as pigtail ends and minibloc shapes enhance durability and proper load distribution.
• Constructed from high-quality steel to withstand the rigors of daily driving and varying road conditions.
• Engineered to restore original ride height and handling characteristics, ensuring your BMW drives like new.
• Designed for easy installation with OEM-compatible fitment, requiring no modifications or special tools.
• Helps maintain proper suspension geometry, tire wear, and vehicle safety.

Construction & Design

The Bilstein B3 OE Replacement Coil Springs are built from premium-grade steel, ensuring strength and longevity. Their precise manufacturing process guarantees that each spring maintains the correct shape and spring rate, matching the original factory specifications. The springs feature specialized design elements such as pigtail ends, minibloc shapes, and central force configurations, which optimize load distribution and reduce stress concentrations. These design choices contribute to improved durability, consistent ride quality, and reliable performance over the lifespan of the vehicle.

Installation & Fitment

The Bilstein B3 OE Replacement Coil Springs are designed for a straightforward, bolt-on installation. They fit directly into your 2006 BMW 325i's existing suspension setup, replacing the original springs without the need for modifications. No cutting, drilling, or special tuning is required. For optimal results, it is recommended to replace springs in pairs to maintain balanced handling and ride quality. Professional installation is advised to ensure proper alignment and suspension setup after replacement.

• Direct OE replacement for 2006 BMW 325i
• Easy bolt-on installation using factory mounting points
• No cutting, drilling, or tuning required

What's Included

• Pair of OE Replacement Coil Springs for the front or rear suspension
• Installation hardware and instructions (if applicable)

Ideal For

• BMW owners seeking to restore factory ride quality and handling
• Rebuilding or repairing worn suspension components
• Maintaining original vehicle specifications for safety and performance
• Enthusiasts who prefer OEM-quality replacement parts