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DuraGo BR5109 Disc Brake Rotor - Front
Durable Disc Brake Rotor for Jeep CJ5 and CJ7
The DuraGo BR5109 disc brake rotor is engineered to provide reliable braking performance for Jeep CJ5 and CJ7 models. Constructed from full cast iron with a vented design, this rotor offers consistent heat dissipation and structural integrity for everyday driving and off-road conditions.
- Material: Cast iron for durability and heat resistance
- Vented rotor design to improve cooling and reduce brake fade
- Nominal thickness of 1.18 inches (30 mm) with discard thickness at 1.12 inches (28.45 mm)
- Overall height of 2.2 inches (55.8 mm) ensuring proper fitment
- Outside diameter of 11.73 inches (298 mm) compatible with specified Jeep models
- Five mounting bolt holes with a 5.5 inch (139.7 mm) bolt circle diameter
- Non-directional brake surface for versatile installation
- Conventional rotor type without ABS tone ring
Technical Details and Construction
The DuraGo BR5109 rotor is made from full cast iron, a material known for its strength and ability to withstand high temperatures generated during braking. Its vented construction allows air to flow between the rotor surfaces, enhancing heat dissipation and reducing the risk of brake fade during prolonged use. The rotor’s nominal thickness of 1.18 inches (30 mm) ensures a solid braking surface, while the discard thickness of 1.12 inches (28.45 mm) indicates when replacement is necessary to maintain safe braking performance.
With an outside diameter of 11.73 inches (298 mm) and an overall height of 2.2 inches (55.8 mm), this rotor is designed specifically for Jeep CJ5 and CJ7 vehicles. The five mounting bolt holes with a 5.5 inch (139.7 mm) bolt circle diameter and 0.65 inch (16.5 mm) hole diameter provide secure attachment to the wheel hub. The non-directional brake surface allows for flexible installation without concern for rotor orientation.
Compatible Vehicles and Applications
- Replacement disc brake rotor for Jeep CJ5 models
- Replacement disc brake rotor for Jeep CJ7 models
- Ideal for restoring braking performance on older Jeep CJ series vehicles
- Suitable for both on-road and light off-road driving conditions
Installation Notes and Tips
- Ensure rotor thickness is above discard thickness before installation
- Clean mounting surface and hub to prevent rotor runout
- Torque mounting bolts to manufacturer specifications for secure fit
- Check brake pads for wear and replace if necessary during rotor installation
- Perform a brake system inspection after installation to verify proper operation
Quality Assurance and Warranty
DuraGo disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. While this product does not include a rust-resistant coating, the cast iron construction provides reliable durability under normal operating conditions. Please refer to DuraGo’s warranty policy for coverage details related to defects in materials and workmanship.
| Brand | DuraGo |
|---|---|
| Part Number | BR5109 |
| ABS Tone Ring Included | No |
| Center Hole Diameter | 3.76 |
| Center Hole Diameter | 95.5 |
| Construction | Full Cast |
| Conventional Or Drum-In-Hat Type Rotor | Conventional |
| Cross Drilled | No |
| Directional or Non-Directional Brake Surface | Non-Directional |
| Discard Thickness | 1.12 |
| Discard Thickness | 28.45 |
| Material | Cast Iron |
| Mounting Bolt Hole Circle Diameter | 5.5 |
| Mounting Bolt Hole Circle Diameter | 139.7 |
| Mounting Bolt Hole Diameter | 0.65 |
| Mounting Bolt Hole Diameter | 16.5 |
| Mounting Bolt Hole Quantity | 5 |
| Nominal Thickness | 1.18 |
| Nominal Thickness | 30 |
| Outside Diameter | 11.73 |
| Outside Diameter | 298 |
| Overall Height | 2.2 |
| Overall Height | 55.8 |
| Rust Resistant Coating | No |
| Slotted | No |
| Solid Or Vented Type Rotor | Vented |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1978 | Jeep | CJ5 | Front | Caliper w/ 6 Mounting Bolts |
| 1978 | Jeep | CJ7 | Front | Caliper w/ 6 Mounting Bolts |
* 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.