HomeBrake > Drums and RotorsDuraGo BR31366-01 Disc Brake Rotor - Rear
Part #: BR31366-01

DuraGo BR31366-01 Disc Brake Rotor - Rear

Rear
13 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 and 3 Sport
Easy Returns — Return within 60 days for a full refund
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Durable Cast Iron Disc Brake Rotor for Mazda 3 and 3 Sport

The DuraGo BR31366-01 disc brake rotor is engineered to provide reliable braking performance for Mazda 3 and Mazda 3 Sport models. Constructed from full cast iron with a rust-resistant coating, this solid rotor offers consistent stopping power and long-lasting durability.

  • Material: Full cast iron construction for strength and heat dissipation
  • Rust-resistant coating to reduce corrosion and extend rotor life
  • Solid, non-vented rotor design for consistent braking
  • Nominal thickness of 0.43 inches (11 mm) with discard thickness at 0.35 inches (9 mm)
  • Overall diameter of 11.02 inches (280 mm) with 5 mounting bolt holes
  • Non-directional brake surface for versatile installation
  • Compatible with Mazda 3 and Mazda 3 Sport models

Product Details and Specifications

The DuraGo BR31366-01 rotor features a conventional design with a solid brake surface, making it suitable for standard braking systems on Mazda 3 and 3 Sport vehicles. Its full cast iron construction ensures effective heat dissipation during braking, while the rust-resistant coating helps prevent corrosion, maintaining rotor integrity over time. The rotor measures 11.02 inches (280 mm) in outside diameter and has a nominal thickness of 0.43 inches (11 mm), with a discard thickness of 0.35 inches (9 mm), indicating when replacement is necessary. The rotor includes five mounting bolt holes with a bolt circle diameter of 4.5 inches (114.3 mm) and a center hole diameter of 2.82 inches (71.7 mm). This rotor does not include an ABS tone ring and is designed with a non-directional brake surface for flexible installation.

Common Applications and Problem Solving

  • Replacement for worn or warped rotors causing brake pulsation
  • Addressing rotor corrosion and surface rust affecting braking efficiency
  • Restoring proper rotor thickness to maintain safe braking performance
  • Eliminating brake noise caused by uneven rotor surfaces
  • Upgrading to a reliable rotor compatible with Mazda 3 and 3 Sport models

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify rotor thickness with a micrometer to confirm it meets minimum specifications. Use proper torque settings on mounting bolts to avoid rotor warping. Since this rotor is non-directional, it can be installed on either side of the vehicle without concern for rotation direction. Check compatibility with your specific Mazda 3 or 3 Sport year and trim to ensure proper fitment.

Quality Assurance and Warranty

DuraGo disc brake rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The BR31366-01 rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details are not provided, DuraGo products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandDuraGo
Part NumberBR31366-01
MaterialCast iron
Discard Thickness0.35
Discard Thickness9
Nominal Thickness0.43
Nominal Thickness11
ConstructionFull cast
Rust Resistant CoatingYes
Overall Height1.61
Overall Height40.9
Outside Diameter11.02
Outside Diameter280
Mounting Bolt Hole Quantity5
ABS Tone Ring IncludedNo
Solid Or Vented Type RotorSolid
Center Hole Diameter2.82
Center Hole Diameter71.7
Mounting Bolt Hole Circle Diameter114.3
Mounting Bolt Hole Circle Diameter4.5
Mounting Bolt Hole Diameter0.54
Mounting Bolt Hole Diameter13.7
Directional or Non-Directional Brake SurfaceNon-directional
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
SlottedNo

This part fits 13 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2013Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2013Mazda3 Sport2.5LL4RearCoated Hat and Edge for Rust Resistance
2012Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2012Mazda3 Sport2.5LL4RearCoated Hat and Edge for Rust Resistance
2011Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2010Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2010Mazda3 Sport2.5LL4RearCoated Hat and Edge for Rust Resistance
2009Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2008Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2007Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2006Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2005Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance
2004Mazda32.3LL4RearCoated Hat and Edge for Rust Resistance

* 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:

BP4Y26251BBP6Y26251DBP6Y26251EC25Y26251AC25Y26251BC25Y26251C

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