OE Quality
60-Day Returns

DuraGo BR900434-01 Disc Brake Rotor - Rear
Durable Cast Iron Disc Brake Rotor for Audi A4 Models
The DuraGo BR900434-01 disc brake rotor is engineered to provide reliable braking performance for Audi A4 and A4 Quattro vehicles. Constructed from full cast iron with a rust-resistant coating, this solid rotor is designed to maintain consistent stopping power and durability under normal driving conditions.
- 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 suitable for conventional braking systems
- Nominal thickness of 0.47 inches (12 mm) with discard thickness at 0.39 inches (10 mm)
- Overall height of 1.42 inches (36 mm) and outside diameter of 11.34 inches (288 mm)
- Five mounting bolt holes with a 4.41 inch (112 mm) bolt circle diameter
- Non-directional brake surface compatible with standard brake pads
Product Details and Specifications
The DuraGo BR900434-01 rotor is designed specifically for Audi A4 and A4 Quattro models, ensuring precise fitment and optimal braking performance. Its full cast iron construction provides excellent thermal conductivity to help dissipate heat generated during braking, reducing the risk of warping. The rust-resistant coating helps protect the rotor surface from corrosion, which is especially beneficial in humid or wet environments.
This rotor features a solid, conventional design without slots or cross-drilling, making it suitable for everyday driving and standard braking systems. The non-directional brake surface allows for flexible installation without concern for rotor orientation. With five mounting bolt holes and a center hole diameter of 2.68 inches (68 mm), it matches factory specifications for secure and accurate installation.
Compatible Vehicles and Common Applications
- Replacement rotor for Audi A4 models requiring a solid disc brake rotor
- Suitable for Audi A4 Quattro vehicles with matching brake system specifications
- Addresses issues such as rotor wear, brake noise, and vibration
- Ideal for restoring braking performance after rotor thinning or damage
- Helps maintain consistent brake pad contact and stopping power
Installation Notes and Tips
When installing the DuraGo BR900434-01 rotor, ensure the rotor thickness is above the discard thickness of 0.39 inches (10 mm) to maintain safe braking performance. Clean the rotor surface to remove any protective coating or debris before mounting. Verify that the mounting bolt holes align correctly with the vehicle hub and torque bolts to manufacturer specifications. Since this rotor is non-directional, it can be installed on either side without concern for rotation direction.
Quality Assurance and Warranty
DuraGo manufactures the BR900434-01 rotor to meet or exceed OEM standards for fit, form, and function. The rust-resistant coating enhances durability and corrosion resistance. While specific warranty details are not provided, DuraGo products typically come with a limited warranty against defects in materials and workmanship. Always consult product documentation or the manufacturer for complete warranty information.
| Brand | DuraGo |
|---|---|
| Part Number | BR900434-01 |
| Material | Cast iron |
| Discard Thickness | 0.39 |
| Discard Thickness | 10 |
| Nominal Thickness | 0.47 |
| Nominal Thickness | 12 |
| Construction | Full cast |
| Rust Resistant Coating | Yes |
| Overall Height | 1.42 |
| Overall Height | 36 |
| Outside Diameter | 11.34 |
| Outside Diameter | 288 |
| Mounting Bolt Hole Quantity | 5 |
| ABS Tone Ring Included | No |
| Solid Or Vented Type Rotor | Solid |
| Center Hole Diameter | 2.68 |
| Center Hole Diameter | 68 |
| Mounting Bolt Hole Circle Diameter | 112 |
| Mounting Bolt Hole Circle Diameter | 4.41 |
| Mounting Bolt Hole Diameter | 0.6 |
| Mounting Bolt Hole Diameter | 15.2 |
| Directional or Non-Directional Brake Surface | Non-directional |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Cross Drilled | No |
| Slotted | No |
This part fits 10 vehicles. Search below:
| Year | Make | Model | Body Type | Position | Notes |
|---|---|---|---|---|---|
| 2009 | Audi | A4 | Convertible | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance |
| 2009 | Audi | A4 Quattro | Convertible | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance |
| 2008 | Audi | A4 | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance | |
| 2008 | Audi | A4 Quattro | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance | |
| 2007 | Audi | A4 | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance | |
| 2007 | Audi | A4 Quattro | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance | |
| 2006 | Audi | A4 | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance | |
| 2006 | Audi | A4 Quattro | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance | |
| 2005 | Audi | A4 | Rear | 288 mm Rotor Diameter; Coated Hat and Edge for Rust Resistance | |
| 2005 | Audi | A4 Quattro | Rear | 288 mm Rotor Diameter; 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.