DuraGo BR3480 Disc Brake Rotor - Rear

Overview of DuraGo BR3480 Disc Brake Rotor

The DuraGo BR3480 is a solid disc brake rotor designed specifically for select BMW models including the 318i, 318is, 325e, 325i, and 325is. Engineered with cast iron construction, this rotor provides reliable braking performance tailored to the demands of these vehicles.

• Material: Durable cast iron for consistent heat dissipation
• Rotor Type: Solid, drum-in-hat design for integrated parking brake functionality
• Outside Diameter: 10.16 inches (258 mm) ensuring proper fitment
• Nominal Thickness: 0.39 inches (9.9 mm) with discard thickness at 0.33 inches (8.4 mm)
• Mounting Bolt Pattern: 4 holes with 3.94 inches (100 mm) bolt circle diameter
• Center Hole Diameter: 2.44 inches (62 mm) for precise hub alignment
• Non-directional brake surface suitable for standard braking applications

Detailed Product Description

The DuraGo BR3480 disc brake rotor is constructed from full cast iron, providing a balance of strength and thermal conductivity necessary for effective braking. Its solid rotor design, combined with a drum-in-hat construction, integrates the parking brake drum within the rotor, eliminating the need for a separate drum. This design is compatible with BMW 318i, 318is, 325e, 325i, and 325is models, ensuring proper fitment and function. The rotor features a 4-bolt mounting pattern with a 100 mm bolt circle diameter and a center hole diameter of 62 mm, matching OEM specifications for secure installation. The non-directional braking surface allows for flexible installation without concern for rotor orientation.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below discard limits to maintain braking efficiency
• Resolving noise or vibration issues related to damaged rotors
• Upgrading to OEM-equivalent rotors for consistent braking performance
• Ensuring compatibility with drum-in-hat parking brake systems on specified BMW models

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern against vehicle specifications before installation
• Ensure hub surface is clean and free of rust to prevent rotor runout
• Torque mounting bolts to manufacturer specifications to avoid warping
• Check brake pads for wear and replace if necessary when installing new rotors
• Perform a proper bed-in procedure after installation to optimize braking performance

Quality Assurance and Warranty

DuraGo brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR3480 rotor undergoes rigorous quality control to ensure durability and consistent performance. While specific warranty details may vary, DuraGo typically offers coverage against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.