DuraGo BR34219 Disc Brake Rotor - Rear

Durable Cast Iron Disc Brake Rotor for BMW 3 Series

The DuraGo BR34219 disc brake rotor is engineered for reliable braking performance on BMW 330Ci, 330i, and 330xi models. Designed with a vented, drum-in-hat construction, this rotor provides consistent heat dissipation and structural integrity for everyday driving conditions.

• Material: Full cast iron construction for durability
• Vented rotor design to improve cooling and reduce brake fade
• Drum-in-hat type rotor with integrated parking brake drum
• Outside diameter of 320 mm (12.6 inches) for precise fitment
• Nominal thickness of 22 mm with discard thickness at 20.4 mm
• Five mounting bolt holes with a 120 mm bolt circle diameter
• Non-directional brake surface for flexible installation
• Compatible with BMW 330Ci, 330i, and 330xi models

Technical Details and Construction

The DuraGo BR34219 rotor is constructed from full cast iron, a material known for its strength and heat resistance. This vented rotor design enhances airflow between the rotor surfaces, helping to dissipate heat generated during braking and reducing the risk of brake fade. The drum-in-hat configuration integrates a parking brake drum, eliminating the need for a separate drum component. With a nominal thickness of 22 mm and a discard thickness of 20.4 mm, this rotor meets OEM specifications for safe and effective braking. The rotor features five mounting bolt holes spaced on a 120 mm bolt circle diameter, ensuring a secure fit on compatible BMW 3 Series vehicles.

Compatible Vehicles and Applications

This disc brake rotor is specifically designed for use on BMW 3 Series models including the 330Ci, 330i, and 330xi. It is ideal for drivers seeking a direct replacement rotor that maintains factory performance standards.

• Replacement for worn or warped rotors causing vibration or noise
• Solution for rotors below minimum thickness affecting braking efficiency
• Addressing rotor damage from corrosion or surface scoring
• Upgrading to a vented rotor for improved heat management

Installation Notes and Tips

When installing the DuraGo BR34219 rotor, ensure the mounting surface is clean and free of debris to prevent uneven rotor seating. Use proper torque specifications for the five mounting bolts to secure the rotor firmly. Since this rotor is non-directional, it can be installed on either side of the vehicle without concern for rotation direction. It is recommended to replace brake pads simultaneously to ensure optimal braking performance and rotor longevity.

Quality Assurance and Warranty

DuraGo rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR34219 rotor undergoes rigorous quality control to ensure consistent thickness and structural integrity. While specific warranty details may vary, DuraGo typically offers coverage against defects in materials and workmanship, providing confidence in the product's reliability for BMW 330Ci, 330i, and 330xi owners.