DuraGo BR31387 Disc Brake Rotor - Rear

Durable Cast Iron Disc Brake Rotor for Nissan and Infiniti

The DuraGo BR31387 disc brake rotor is engineered for reliable braking performance on select Nissan and Infiniti models. Designed with a full cast construction and vented design, this rotor provides consistent heat dissipation and durability for vehicles like the Nissan 350Z, 370Z, and Infiniti G35.

• Material: Cast iron for strength and heat resistance
• Vented rotor design to improve cooling and reduce brake fade
• Drum-in-hat construction for integrated parking brake functionality
• Outside diameter of 12.11 inches (307.7 mm) for precise fitment
• Mounting bolt pattern: 5 holes with 114.3 mm bolt circle diameter
• Nominal thickness of 0.63 inches (16 mm) with discard thickness at 0.55 inches (14 mm)
• Non-directional brake surface for versatile installation
• Center hole diameter of 2.68 inches (68 mm) for secure mounting

Technical Details and Construction

The DuraGo BR31387 rotor is constructed from cast iron, a material known for its durability and ability to withstand high temperatures generated during braking. Its vented design allows air to flow between the rotor surfaces, helping to dissipate heat and maintain braking efficiency under demanding conditions. The drum-in-hat style integrates the parking brake drum within the rotor, eliminating the need for a separate drum and simplifying installation.

This rotor features a 5-bolt mounting pattern with a 114.3 mm bolt circle diameter, compatible with various Nissan and Infiniti models. The nominal thickness of 0.63 inches ensures a solid braking surface, while the discard thickness of 0.55 inches indicates when replacement is necessary to maintain safety and performance.

Compatible Vehicles and Applications

The DuraGo BR31387 disc brake rotor is compatible with the following Nissan and Infiniti vehicles:

• Nissan 350Z and 370Z
• Nissan Z models
• Infiniti G25, G35, G37
• Infiniti M35, M45
• Infiniti EX35, EX37
• Infiniti Q40, QX50

This rotor is designed to address common braking issues such as:

• Brake rotor warping or uneven wear
• Reduced braking performance due to overheating
• Vibration or pulsation during braking
• Noise caused by worn or damaged rotors
• Parking brake functionality problems in drum-in-hat systems

Installation Notes and Tips

When installing the DuraGo BR31387 rotor, ensure the mounting surface is clean and free of debris to promote proper fitment. Since this rotor is non-directional, it can be installed on either side of the vehicle without concern for rotation direction. Verify the rotor thickness before installation and replace if below the discard thickness of 0.55 inches. Proper torque specifications should be followed for the 5 mounting bolts to ensure secure attachment.

Quality Assurance and Warranty

DuraGo manufactures the BR31387 rotor to meet or exceed OEM specifications for fit, form, and function. The full cast iron construction and vented design contribute to consistent braking performance and durability. While this rotor does not include a rust-resistant coating, proper maintenance and inspection will help extend its service life. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.