HomeBrake > Drums and RotorsDuraGo BR31291 Disc Brake Rotor - Front
Part #: BR31291

DuraGo BR31291 Disc Brake Rotor - Front

Front
5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mitsubishi, Montero Sport
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Durable Cast Iron Disc Brake Rotor for Mitsubishi Montero Sport

The DuraGo BR31291 disc brake rotor is engineered to provide reliable braking performance for your Mitsubishi Montero Sport. Designed with vented construction and precise dimensions, this rotor ensures consistent heat dissipation and smooth stopping power.

  • Material: Full cast iron construction for durability
  • Vented rotor design to improve heat dissipation
  • Nominal thickness of 0.94 inches (24 mm) with discard thickness at 0.88 inches (22.4 mm)
  • Outside diameter of 12.36 inches (314 mm) for exact fitment
  • Six mounting bolt holes with a 4.25 inch (108 mm) bolt circle diameter
  • Non-directional brake surface for versatile installation
  • Compatible specifically with Mitsubishi Montero Sport models

Product Details and Specifications

The DuraGo BR31291 rotor is constructed from full cast iron, providing a solid and durable braking surface. Its vented design allows air to flow between the rotor faces, reducing heat buildup during braking and helping to prevent brake fade. The rotor measures 12.36 inches (314 mm) in outside diameter and has a nominal thickness of 0.94 inches (24 mm), with a discard thickness of 0.88 inches (22.4 mm), ensuring it meets OEM specifications for safe operation. The overall height is 1.78 inches (45.3 mm), and it features six mounting bolt holes with a 0.43 inch (10.8 mm) diameter, arranged on a 4.25 inch (108 mm) bolt circle diameter. This rotor does not include an ABS tone ring and is designed as a conventional, non-directional rotor without cross-drilling or slotting.

Compatible Vehicles and Applications

This disc brake rotor is compatible with Mitsubishi Montero Sport vehicles, providing a direct replacement for worn or damaged rotors. It is suitable for drivers seeking to maintain factory-level braking performance and safety.

  • Replaces worn or warped rotors causing vibration or noise
  • Addresses reduced braking efficiency due to rotor wear
  • Solves issues with brake fade from overheating
  • Eliminates pulsation felt through the brake pedal
  • Restores proper rotor thickness for safe braking

Installation Notes and Tips

When installing the DuraGo BR31291 rotor, ensure the mounting surface is clean and free of rust or debris. Use proper torque specifications for the six mounting bolts to avoid rotor warping. Since this rotor is non-directional, it can be installed on either side of the vehicle. It is recommended to replace brake pads simultaneously to ensure optimal braking performance and rotor longevity.

Quality Assurance and Warranty

DuraGo manufactures this rotor to meet or exceed OEM standards for fit, form, and function. While this rotor does not feature a rust-resistant coating, its full cast iron construction provides reliable durability under normal operating conditions. Please refer to DuraGo's warranty policy for specific coverage details.

BrandDuraGo
Part NumberBR31291
ABS Tone Ring IncludedNo
Center Hole Diameter3.43
Center Hole Diameter87.1
ConstructionFull Cast
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
Directional or Non-Directional Brake SurfaceNon-Directional
Discard Thickness0.88
Discard Thickness22.4
MaterialCast Iron
Mounting Bolt Hole Circle Diameter4.25
Mounting Bolt Hole Circle Diameter108
Mounting Bolt Hole Diameter0.43
Mounting Bolt Hole Diameter10.8
Mounting Bolt Hole Quantity6
Nominal Thickness0.94
Nominal Thickness24
Outside Diameter12.36
Outside Diameter314
Overall Height1.78
Overall Height45.3
Rust Resistant CoatingNo
SlottedNo
Solid Or Vented Type RotorVented

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2004MitsubishiMontero SportFront314 mm Rotor Diameter
2003MitsubishiMontero SportFront314 mm Rotor Diameter
2002MitsubishiMontero SportFront314 mm Rotor Diameter
2001MitsubishiMontero SportFront314 mm Rotor Diameter
2000MitsubishiMontero SportFront314 mm Rotor Diameter

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

121460511260153129196974AX31291BD126015MB699716P96974PRT5320

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.