DuraGo BR31143 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Mitsubishi Montero Models

The DuraGo BR31143 disc brake rotor is engineered to provide consistent braking performance for Mitsubishi Montero and Montero Sport vehicles. Designed with durable cast iron construction, this rotor meets the specific requirements of your vehicle's braking system.

• Material: Full cast iron construction for durability
• Rotor Type: Solid, drum-in-hat design
• Outside Diameter: 12.4 inches (315 mm)
• Overall Height: 3.3 inches (83.7 mm)
• Mounting Bolt Holes: 6 holes with 0.52 inch (13.1 mm) diameter
• Center Hole Diameter: 4.25 inches (108 mm)
• Mounting Bolt Hole Circle Diameter: 5.5 inches (139.7 mm)
• Nominal Thickness: 0.31 inches (8 mm)
• Discard Thickness: 0.65 inches (16.4 mm)
• Non-directional brake surface, no ABS tone ring included

Durable Construction and Precise Fitment

The DuraGo BR31143 rotor features a full cast iron build that ensures strength and heat dissipation during braking. Its solid, drum-in-hat design integrates a drum brake surface for rear parking brake functionality, making it suitable for Mitsubishi Montero and Montero Sport models. The rotor's dimensions, including a 12.4-inch outside diameter and 6 mounting bolt holes, are tailored to match factory specifications, ensuring proper installation and reliable performance. This rotor does not include a rust-resistant coating, so regular maintenance is recommended to prevent corrosion over time.

Compatible Applications and Common Issues Addressed

• Compatible with Mitsubishi Montero and Montero Sport models requiring a 12.4-inch solid disc brake rotor
• Replaces worn or warped rotors causing brake pulsation or noise
• Restores braking efficiency when rotor thickness falls below discard limits
• Addresses uneven brake pad wear due to rotor surface irregularities
• Supports proper rear parking brake operation with drum-in-hat design

Installation Notes and Tips

When installing the DuraGo BR31143 rotor, ensure the mounting surface is clean and free of debris to maintain proper rotor alignment. Verify that the rotor thickness meets or exceeds the nominal thickness of 0.31 inches (8 mm) and does not fall below the discard thickness of 0.65 inches (16.4 mm). Use the correct torque specifications for the 6 mounting bolts to avoid rotor warping. Since this rotor lacks a rust-resistant coating, consider applying an anti-corrosion treatment to the rotor hat area during installation.

Quality Assurance and Warranty Information

DuraGo manufactures the BR31143 rotor to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes quality inspections to ensure dimensional accuracy and material integrity. While specific warranty details may vary, DuraGo typically offers limited warranties covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.