HomeBrake > Drums and RotorsDuraGo BR901778 Disc Brake Rotor - Rear
Part #: BR901778

DuraGo BR901778 Disc Brake Rotor - Rear

Rear
10 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Subaru, Forester
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Overview of DuraGo BR901778 Disc Brake Rotor

The DuraGo BR901778 disc brake rotor is engineered for reliable braking performance on select Subaru models. Designed with durable cast iron and a vented construction, this rotor supports consistent heat dissipation and braking efficiency for vehicles like the Subaru Crosstrek, Forester, and Impreza.

  • Material: Cast iron for strength and durability
  • Vented rotor design to improve heat dissipation
  • Nominal thickness: 0.67 inches (17 mm)
  • Discard thickness: 0.59 inches (15 mm)
  • Outside diameter: 11.22 inches (285 mm)
  • Mounting bolt hole quantity: 5 with 4.5 inch (114.3 mm) bolt circle diameter
  • Non-directional brake surface for versatile installation
  • Conventional rotor type without ABS tone ring

Detailed Product Description

The DuraGo BR901778 is a full cast disc brake rotor constructed from cast iron, providing a balance of durability and heat resistance. Its vented design allows air to flow between the rotor surfaces, reducing the risk of brake fade during extended use. With a nominal thickness of 0.67 inches and a discard thickness of 0.59 inches, this rotor meets the specifications required for safe and effective braking. The rotor measures 11.22 inches in outside diameter and features five mounting bolt holes arranged on a 4.5-inch bolt circle diameter, ensuring proper fitment on compatible Subaru models.

This rotor is designed as a conventional, non-directional brake surface type, which simplifies installation and maintenance. It does not include an ABS tone ring, so it is intended for vehicles without ABS sensor integration on the rotor itself. The overall height of 1.82 inches supports proper alignment with the brake caliper assembly.

Compatible Subaru Models and Applications

  • Subaru Crosstrek
  • Subaru Forester
  • Subaru Impreza

This rotor is specifically compatible with these Subaru models, making it a suitable replacement part for maintaining factory braking performance.

Common Issues Addressed by This Rotor

  • Brake rotor warping causing vibration during braking
  • Excessive rotor wear leading to reduced braking efficiency
  • Overheating and brake fade during prolonged braking
  • Corrosion and surface damage affecting rotor lifespan
  • Uneven rotor thickness causing brake noise or pulsation

Installation Notes and Tips

  • Ensure the rotor thickness is above the discard thickness before installation
  • Clean the rotor surface to remove any protective coating or debris
  • Check compatibility with your vehicle’s brake caliper and mounting hardware
  • Torque mounting bolts to manufacturer specifications to avoid rotor distortion
  • Inspect brake pads and replace if worn to ensure optimal rotor performance

Quality Assurance and Warranty

DuraGo manufactures the BR901778 rotor to meet industry standards for material quality and dimensional accuracy. While specific warranty details may vary, DuraGo products typically come with a limited warranty against defects in materials and workmanship. It is recommended to verify warranty coverage with the point of purchase or manufacturer documentation.

BrandDuraGo
Part NumberBR901778
ABS Tone Ring IncludedNo
Center Hole Diameter2.28
Center Hole Diameter58
ConstructionFull Cast
Conventional Or Drum-In-Hat Type RotorConventional
Cross DrilledNo
Directional or Non-Directional Brake SurfaceNon-Directional
Discard Thickness0.59
Discard Thickness15
MaterialCast Iron
Mounting Bolt Hole Circle Diameter4.5
Mounting Bolt Hole Circle Diameter114.3
Mounting Bolt Hole Diameter0.51
Mounting Bolt Hole Diameter13
Mounting Bolt Hole Quantity5
Nominal Thickness0.67
Nominal Thickness17
Outside Diameter11.22
Outside Diameter285
Overall Height1.82
Overall Height46.3
Rust Resistant CoatingNo
SlottedNo
Solid Or Vented Type RotorVented

This part fits 10 vehicles. Search below:

YearMakeModelPositionNotes
2025SubaruCrosstrekRear
2025SubaruImprezaRear
2024SubaruCrosstrekRear
2024SubaruForesterRear
2024SubaruImprezaRear
2023SubaruForesterRear
2022SubaruForesterRear
2021SubaruForesterRear
2020SubaruForesterRear
2019SubaruForesterRear

* 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:

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