DuraGo BR901540 Disc Brake Rotor - Rear

Overview of DuraGo BR901540 Disc Brake Rotor

The DuraGo BR901540 is a vented disc brake rotor designed specifically for various BMW models including the 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and ActiveHybrid 3. Engineered with full cast iron construction, this rotor provides reliable braking performance tailored to your vehicle's specifications.

• Material: Durable cast iron for consistent heat dissipation
• Vented rotor design to improve cooling and reduce brake fade
• Drum-in-hat construction for integrated parking brake functionality
• Outside diameter of 12.99 inches (330 mm) for precise fitment
• Mounting bolt pattern: 5 holes with 4.72 inch (120 mm) bolt circle diameter
• Nominal thickness of 0.79 inches (20 mm) with discard thickness at 0.72 inches (18.4 mm)
• Non-directional brake surface for versatile installation
• Center hole diameter of 2.95 inches (75 mm) for secure mounting

Detailed Product Description

The DuraGo BR901540 disc brake rotor is constructed from full cast iron, a material known for its strength and thermal stability. This rotor features a vented design that allows air to flow between the rotor surfaces, helping to dissipate heat more effectively during braking. The drum-in-hat construction integrates a parking brake drum within the rotor, eliminating the need for a separate drum brake assembly. With an outside diameter of 12.99 inches and a mounting bolt pattern of 5 holes spaced on a 4.72 inch bolt circle, this rotor is engineered to fit a wide range of BMW models including the 328i, 330i, 335i, 340i, 428i, 430i, 435i, 440i, and ActiveHybrid 3 variants. The nominal thickness of 0.79 inches ensures durability, while the discard thickness of 0.72 inches indicates when replacement is necessary to maintain safe braking performance.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing reduced braking efficiency due to rotor overheating
• Resolving noise issues related to uneven rotor surfaces
• Upgrading to a vented rotor for improved heat management
• Ensuring compatibility with drum-in-hat parking brake systems

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern against your BMW model before installation
• Inspect brake pads and hardware for wear and replace if necessary
• Clean rotor mounting surface to ensure proper fit and avoid vibration
• Torque mounting bolts to manufacturer specifications to prevent rotor warping
• Perform a bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

DuraGo brake rotors are manufactured to meet or exceed OEM specifications, ensuring reliable performance and safety. The BR901540 rotor undergoes rigorous quality control to maintain consistent thickness and structural integrity. While specific warranty details may vary, DuraGo typically offers coverage against manufacturing defects. Consult product documentation or your supplier for exact warranty terms.