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Confident Brake Service for Mazda Miata
This DFC application-specific brake rotor is matched to Mazda Miata. Manufacturer part number 604-80023 identifies the exact application, while the fitment table below helps confirm vehicle and position before ordering. The DFC catalog identifies it as DFC GEOSPEC Coated Rotor.
Key Features
- Vehicle-specific dimensions support direct replacement fitment
- Rotor geometry is engineered for consistent friction contact
- Correct installation and bedding support smooth, predictable braking
- Coated surfaces provide added corrosion protection in exposed areas
- Precision balancing is specified to support smooth braking and limit vibration
- The listed iron casting specification supports rotor strength and dimensional stability
- OE-style vane geometry supports heat dissipation during braking
Fitment
Match the complete year, make, model, submodel, and rear before ordering. This is not a universal brake component.
| Year Range | Make | Model | Submodel | Position |
|---|---|---|---|---|
| 1990 to 1993 | Mazda | Miata | Base | Rear |
| 1993 | Mazda | Miata | LE | Rear |
| 1991 | Mazda | Miata | SE | Rear |
Specifications
| Brand | Dynamic Friction Company (DFC) |
|---|---|
| Manufacturer Part Number | 604-80023 |
| SKU | DFC604-80023 |
| Product Type | Brake Rotors - OE - Cryo |
| Position | Rear |
| UPC | 190920536281 |
| Outside Diameter | 231 mm |
| Nominal Thickness | 9 mm |
| Discard Thickness | 8 mm |
| Overall Height | 34.5 mm |
| Center Hole Diameter | 55 mm |
| Inside Diameter | 55 mm |
| Bolt Hole Quantity | 4 EA |
| Stud/Lug Hole Quantity | 4 |
| Stud/Lug Hole Circle Diameter | 100 mm |
| Surface Type | Smooth |
| Solid Or Vented Type Rotor | Solid |
| Directional or Non-Directional Brake Surface | Non-Directional |
| Disc Finish | Fully Coated GEOSPEC |
| Hat Finish | Fully Coated GEOSPEC |
What's Included
One DFC brake rotor identified by manufacturer part number 604-80023, supplied in the package configuration stated in the product title and specifications. Order quantity should match the number of vehicle positions being serviced.
About DFC
Dynamic Friction Company develops replacement and performance brake components for a wide range of passenger, performance, and commercial vehicle applications. DFC products are cataloged by exact vehicle application and manufacturer part number to support accurate brake service.
FAQ
Will this fit my vehicle?
Use the full fitment table and confirm the brake position. Matching only the make and model is not enough.
What part number should I match?
Match DFC manufacturer part number 604-80023 and SKU DFC604-80023.
Should related brake components be inspected?
Yes. Inspect the mating friction surface, hydraulic components, hoses or lines, and mounting hardware before installation.
Installation Instructions
Compare the new rotor with the removed part, clean the hub face, verify runout, and install with serviceable pads and hardware. Follow the vehicle service manual for torque values and complete the recommended pad bedding procedure. Professional installation is recommended.
Prop 65 Warning
WARNING: This product can expose you to chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
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