OE Quality
60-Day Returns

DuraGo BR901780-01 Disc Brake Rotor - Front
Reliable Disc Brake Rotor for Subaru Ascent
The DuraGo BR901780-01 disc brake rotor is engineered to provide consistent braking performance for your Subaru Ascent. Constructed from durable cast iron with a rust-resistant coating, this rotor is designed to withstand daily driving conditions while maintaining safety and reliability.
- Material: Full cast iron construction for strength and heat dissipation
- Vented rotor design to improve cooling and reduce brake fade
- Rust-resistant coating to extend rotor life and maintain appearance
- Nominal thickness of 30 mm with discard thickness at 28 mm for precise wear limits
- Overall diameter of 333.5 mm (13.13 inches) compatible with Subaru Ascent brake systems
- Five mounting bolt holes with a 114.3 mm bolt circle diameter for secure fitment
- Non-directional brake surface suitable for standard braking applications
Durable Construction and Precise Fitment
The DuraGo BR901780-01 rotor features a full cast iron build that offers excellent thermal conductivity and durability. Its vented design allows air to flow between the rotor surfaces, helping to dissipate heat more effectively during braking. The rust-resistant coating helps prevent corrosion, which can compromise rotor integrity over time. With an overall height of 46.3 mm and a center hole diameter of 58 mm, this rotor is engineered to match the exact specifications required for the Subaru Ascent, ensuring proper installation and optimal braking performance.
Compatible Applications and Performance Benefits
This disc brake rotor is specifically compatible with Subaru Ascent models, providing a direct replacement for worn or damaged rotors. It is designed to address common braking issues such as:
- Brake noise caused by uneven rotor surfaces
- Reduced braking efficiency due to rotor warping or wear
- Corrosion-related rotor degradation
- Overheating and brake fade during extended use
- Vibration or pulsation felt through the brake pedal
Installation Notes and Tips
When installing the DuraGo BR901780-01 rotor, ensure the mounting surface is clean and free of debris to promote proper seating. Verify that the rotor thickness is within the nominal range (30 mm) and above the discard thickness (28 mm) before installation. Use the correct torque specifications for the five mounting bolts to avoid rotor distortion. This rotor does not include an ABS tone ring and is non-directional, so orientation during installation is flexible.
Quality Assurance and Warranty
DuraGo manufactures this disc brake rotor to meet industry standards for safety and durability. The full cast iron construction combined with a rust-resistant coating supports long-term performance. While specific warranty details are not provided, DuraGo products typically adhere to quality control measures to ensure reliability for Subaru Ascent owners requiring replacement rotors.
| Brand | DuraGo |
|---|---|
| Part Number | BR901780-01 |
| Material | Cast iron |
| Discard Thickness | 1.1 |
| Discard Thickness | 28 |
| Nominal Thickness | 1.18 |
| Nominal Thickness | 30 |
| Construction | Full cast |
| Rust Resistant Coating | Yes |
| Overall Height | 1.82 |
| Overall Height | 46.3 |
| Outside Diameter | 13.13 |
| Outside Diameter | 333.5 |
| Mounting Bolt Hole Quantity | 5 |
| ABS Tone Ring Included | No |
| Solid Or Vented Type Rotor | Vented |
| Center Hole Diameter | 2.28 |
| Center Hole Diameter | 58 |
| Mounting Bolt Hole Circle Diameter | 114.3 |
| Mounting Bolt Hole Circle Diameter | 4.5 |
| Mounting Bolt Hole Diameter | 0.51 |
| Mounting Bolt Hole Diameter | 13 |
| Directional or Non-Directional Brake Surface | Non-directional |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Cross Drilled | No |
| Slotted | No |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2025 | Subaru | Ascent | Front | Coated Hat and Edge for Rust Resistance |
| 2024 | Subaru | Ascent | Front | Coated Hat and Edge for Rust Resistance |
| 2023 | Subaru | Ascent | Front | Coated Hat and Edge for Rust Resistance |
| 2022 | Subaru | Ascent | Front | Coated Hat and Edge for Rust Resistance |
| 2021 | Subaru | Ascent | Front | Coated Hat and Edge for Rust Resistance |
| 2020 | Subaru | Ascent | Front | Coated Hat and Edge for Rust Resistance |
| 2019 | Subaru | Ascent | Front | Coated 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.