OE Quality
60-Day Returns

Dynamite Friction 604-47037 Disc Brake Rotor - Front
Overview of Dynamite Friction DFC GEOSPEC Coated Rotor
The Dynamite Friction DFC GEOSPEC Coated Rotor (part number 604-47037) is engineered for reliable braking performance on Chevrolet Cobalt and HHR models. This vented disc brake rotor is designed to meet the specific requirements of these vehicles, ensuring proper fit and function.
- Compatible with Chevrolet Cobalt and HHR models
- Part number 604-47037 for precise identification
- Vented rotor design for improved heat dissipation
- Nominal thickness of 25.7 mm and discard thickness of 24 mm
- Outside diameter of 315.5 mm and inside diameter of 65.6 mm
- Five bolt holes with 14.3 mm diameter each
- Rotor height of 42.8 mm
Detailed Specifications and Features
This disc brake rotor features a vented design that helps reduce heat buildup during braking, which is critical for maintaining consistent stopping power and rotor longevity. The rotor’s nominal thickness is 25.7 mm, with a discard thickness of 24 mm, indicating when the rotor should be replaced to maintain safe braking performance. The outside diameter measures 315.5 mm, while the inside diameter is 65.6 mm, dimensions that ensure proper fitment on compatible Chevrolet models. The rotor includes five bolt holes, each with a diameter of 14.3 mm, matching the bolt pattern of the Chevrolet Cobalt and HHR. The rotor height is 42.8 mm, contributing to the overall fit and compatibility with the vehicle’s braking system.
About the DFC GEOSPEC Coated Rotor Line
The DFC GEOSPEC Coated Rotor line by Dynamite Friction is designed to provide enhanced corrosion resistance and durability through a specialized coating process. This coating helps protect the rotor surface from rust and environmental damage, which is especially beneficial for vehicles exposed to varying weather conditions. The 604-47037 rotor benefits from this coating, extending its service life while maintaining consistent braking performance on Chevrolet Cobalt and HHR models.
Common Applications and Problem Solving
- Replacement for worn or warped rotors on Chevrolet Cobalt and HHR
- Improves heat dissipation to reduce brake fade during extended use
- Addresses rotor corrosion issues with protective coating
- Restores proper rotor thickness for safe braking performance
- Ensures correct bolt pattern and fitment for secure installation
Installation Notes and Tips
When installing the Dynamite Friction DFC GEOSPEC Coated Rotor 604-47037, ensure the rotor thickness is above the discard thickness of 24 mm before installation. Proper cleaning of the rotor surface and hub is recommended to prevent uneven braking or noise. Use the five 14.3 mm bolt holes to securely fasten the rotor, verifying compatibility with the Chevrolet Cobalt or HHR brake assembly. It is advisable to inspect brake pads and hardware during rotor replacement for optimal braking system performance.
Quality Assurance and Warranty
Dynamite Friction manufactures the DFC GEOSPEC Coated Rotor to meet industry standards for durability and performance. While specific warranty details are not provided, the product is designed to comply with OEM specifications for Chevrolet Cobalt and HHR vehicles, ensuring reliable operation when installed correctly.
| Brand | Dynamite Friction |
|---|---|
| Part Number | 604-47037 |
| Position | DFC GEOSPEC Coated Rotor, Front |
| Bolt Hole Diameter | 14.3 |
| Bolt Hole Quantity | 5 |
| Discard Thickness | 24 |
| Height | 42.8 |
| Inside Diameter | 65.6 |
| Nominal Thickness | 25.7 |
| Outside Diameter | 315.5 |
| Solid Or Vented Type Rotor | Vented |
This part fits 6 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2010 | Chevrolet | Cobalt | Front | with Brembo Front Calipers; DFC GEOSPEC Coated Rotor | |
| 2010 | Chevrolet | HHR | Front | Fits vehicles with Brembo Front Calipers and Performance Package.; DFC GEOSPEC Coated Rotor | |
| 2009 | Chevrolet | Cobalt | Front | with Brembo Front Calipers; DFC GEOSPEC Coated Rotor | |
| 2009 | Chevrolet | HHR | Front | Fits vehicles with Brembo Front Calipers and Performance Package.; DFC GEOSPEC Coated Rotor | |
| 2008 | Chevrolet | Cobalt | SS | Front | with Brembo Front Calipers; DFC GEOSPEC Coated Rotor |
| 2007 | Chevrolet | Cobalt | Front | with Brembo Front Calipers; DFC GEOSPEC Coated Rotor |
* 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.