HomeBrake > Drums and RotorsDuraGo BR901138 Disc Brake Rotor - Front
Part #: BR901138

DuraGo BR901138 Disc Brake Rotor - Front

Front
7 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Mazda, 3
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Fast Shipping — Most orders ship same business day before 1pm CST

Overview of DuraGo BR901138 Disc Brake Rotor

The DuraGo BR901138 is a cast iron vented disc brake rotor designed specifically for Mazda 3 models. Engineered for reliable braking performance, this rotor offers consistent stopping power and durability for everyday driving conditions.

  • Material: Full cast iron construction for strength and heat dissipation
  • Vented rotor design to improve cooling and reduce brake fade
  • Nominal thickness of 0.98 inches (25 mm) with discard thickness at 0.91 inches (23 mm)
  • Outside diameter of 12.6 inches (320 mm) suitable for Mazda 3 brake systems
  • Five mounting bolt holes with a 4.5 inch (114.3 mm) bolt circle diameter
  • Non-directional brake surface for flexible installation
  • Conventional rotor type without cross-drilling or slotting

Detailed Product Description

The DuraGo BR901138 disc brake rotor is constructed from full cast iron, providing a robust and heat-resistant braking surface. Its vented design allows air to flow between the rotor faces, helping to dissipate heat generated during braking and reducing the risk of brake fade. With a nominal thickness of 0.98 inches (25 mm) and a discard thickness of 0.91 inches (23 mm), this rotor maintains structural integrity throughout its service life. The rotor measures 12.6 inches (320 mm) in outside diameter and features five mounting bolt holes arranged on a 4.5 inch (114.3 mm) bolt circle diameter, ensuring precise fitment on compatible Mazda 3 vehicles. The non-directional brake surface allows for installation on either side without affecting performance.

Compatible Vehicles and Applications

This disc brake rotor is compatible with Mazda 3 models requiring a 12.6 inch rotor with five mounting bolts. It is designed to replace worn or damaged rotors and restore proper braking function.

  • Eliminates brake pulsation caused by warped rotors
  • Resolves excessive brake noise due to uneven rotor surfaces
  • Addresses reduced braking efficiency from worn rotor thickness
  • Prevents overheating and brake fade during extended use

Installation Notes and Tips

When installing the DuraGo BR901138 rotor, ensure the mounting surface is clean and free of rust or debris to promote proper seating. 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 even wear and optimal braking performance. Verify that the rotor thickness is above the discard limit of 0.91 inches (23 mm) before installation.

Quality Assurance and Warranty

DuraGo manufactures this 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 specific warranty details are not provided, DuraGo products typically come with a limited warranty against defects in materials and workmanship.

BrandDuraGo
Part NumberBR901138
ABS Tone Ring IncludedNo
Center Hole Diameter2.83
Center Hole Diameter72
ConstructionFull Cast
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
Directional or Non-Directional Brake SurfaceNon-Directional
Discard Thickness0.91
Discard Thickness23
MaterialCast Iron
Mounting Bolt Hole Circle Diameter4.5
Mounting Bolt Hole Circle Diameter114.3
Mounting Bolt Hole Diameter0.54
Mounting Bolt Hole Diameter13.8
Mounting Bolt Hole Quantity5
Nominal Thickness0.98
Nominal Thickness25
Outside Diameter12.6
Outside Diameter320
Overall Height1.91
Overall Height48.4
Rust Resistant CoatingNo
SlottedNo
Solid Or Vented Type RotorVented

This part fits 7 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2013Mazda32.3LL4Front
2012Mazda32.3LL4Front
2011Mazda32.3LL4Front
2010Mazda32.3LL4Front
2009Mazda3Mazdaspeed2.3LL4Front
2008Mazda3Mazdaspeed2.3LL4Front
2007Mazda3Mazdaspeed2.3LL4Front

* 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:

1214507831477901138980576AX901138B37F3325XABD126497P901138PRT5711

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