DuraGo BR900604-01 Disc Brake Rotor - Rear

Overview of DuraGo BR900604-01 Disc Brake Rotor

The DuraGo BR900604-01 is a vented disc brake rotor designed specifically for select BMW models including the 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1. Crafted from durable cast iron with a rust-resistant coating, this rotor offers reliable braking performance and longevity under various driving conditions.

• Material: Full cast iron construction for strength and heat dissipation
• Vented design to improve cooling and reduce brake fade
• Rust-resistant coating to protect against corrosion
• Nominal thickness of 0.87 inches (22 mm) with discard thickness at 0.8 inches (20.4 mm)
• Outside diameter of 13.23 inches (336 mm) suitable for specified BMW models
• Drum-in-hat type rotor with 5 mounting bolt holes
• Non-directional brake surface for versatile installation

Detailed Product Description

The DuraGo BR900604-01 disc brake rotor is engineered with a full cast iron construction that balances durability and effective heat management. Its vented design allows air to circulate between the rotor surfaces, helping to dissipate heat generated during braking and reducing the risk of brake fade. The rotor features a rust-resistant coating that helps maintain its surface integrity and appearance over time, especially in environments prone to moisture and road salt.

With a nominal thickness of 0.87 inches (22 mm) and a discard thickness of 0.8 inches (20.4 mm), this rotor meets the specifications required for safe and effective braking performance. The overall height measures 2.64 inches (67 mm), and the rotor includes a drum-in-hat design, integrating the parking brake drum within the rotor assembly. The 5 mounting bolt holes and a mounting bolt hole circle diameter of 4.72 inches (120 mm) ensure proper fitment on compatible BMW vehicles.

Compatible BMW Models and Applications

• BMW 330i and 330xi
• BMW 335d, 335i, 335is, 335i xDrive, and 335xi
• BMW X1

This rotor is designed to replace original equipment on these models, providing consistent braking performance and maintaining vehicle safety standards.

Common Issues Addressed by This Rotor

• Brake rotor warping or uneven wear causing vibration during braking
• Corrosion and rust buildup reducing rotor lifespan
• Reduced braking efficiency due to overheating or brake fade
• Noise or pulsation from worn or damaged rotors
• Incompatibility with parking brake function in drum-in-hat rotor setups

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it is above the discard thickness of 0.8 inches (20.4 mm). Clean the mounting surface and hub to remove rust or debris for proper rotor seating. Since this rotor is non-directional, it can be installed on either side without concern for rotation direction. Verify the mounting bolt hole pattern matches the vehicle specifications (5 holes, 4.72 inch bolt circle diameter). This rotor does not include an ABS tone ring, so it is compatible with vehicles that do not require this feature.

Quality Assurance and Warranty

DuraGo manufactures this rotor to meet or exceed OEM standards for fit, form, and function. The cast iron material and rust-resistant coating contribute to durability and consistent braking performance. Warranty details are provided by DuraGo and typically cover defects in material and workmanship under normal use conditions. Refer to DuraGo’s official warranty policy for specific terms and coverage.