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Dynamic Friction 604-21058 Disc Brake Rotor - Rear
| Brand | Dynamic Friction 604-21058 |
|---|---|
| Position | Rear |
| Discard Thickness | 18 |
| Nominal Thickness | 20 |
| Bolt Hole Diameter | 12.5 |
| Disc Finish | Plain |
| Bolt Hole Quantity | 5 |
| Outside Diameter | 345 |
| Height | 32.6 |
| Surface Type | Smooth |
| Solid Or Vented Type Rotor | Vented |
| Center Hole Diameter | 69 |
| Stud/Lug Hole Quantity | 5 |
| Directional or Non-Directional Brake Surface | Non-directional |
| Bolt Circle Diameter | 114.3 |
| Product line | DFC GEOSPEC Coated Rotor |
| Fits | Kia · 3 vehicles |
Coated rotor. GEOSPEC finish helps resist corrosion and keep the surface cleaner.
Vented design. Promotes airflow through the rotor for more consistent braking performance.
Smooth, non-directional surface. Supports even pad contact and quiet, predictable braking.
Rear Brake Rotor for Kia EV9
The Dynamic Friction DFC GEOSPEC Coated Rotor, part number 604-21058, is a rear disc brake rotor built for 2024-2026 Kia EV9 applications. It features a vented rotor design with a smooth, non-directional braking surface for consistent contact and straightforward serviceability.
For drivers searching for a rear brake rotor for 2024-2026 Kia EV9, this rotor matches the listed fitment and key dimensional specs. The GEOSPEC coated rotor line is focused on corrosion-resistant surface protection while maintaining a clean, plain disc finish.
Key Features
- Fits 2024-2026 Kia EV9, rear
- DFC GEOSPEC Coated Rotor line from Dynamic Friction
- Part number 604-21058
- Vented disc brake rotor construction
- Smooth, non-directional brake surface
- Plain disc finish
- Outside diameter: 345 mm
- Nominal thickness: 20 mm
- Discard thickness: 18 mm
- Height: 32.6 mm
- 5-bolt pattern with 114.3 mm bolt circle diameter
- Center hole diameter: 69 mm
Detailed Description
The Dynamic Friction 604-21058 rear rotor is specified for the Kia EV9 and built around the listed OE-style dimensions, including a 345 mm outside diameter, 20 mm nominal thickness, and 18 mm discard thickness. The vented design supports rear brake service on this EV platform, while the non-directional surface simplifies rotor orientation during replacement. If you are sourcing a rear brake rotor for a 2024 Kia EV9, 2025 Kia EV9, or 2026 Kia EV9, this part number provides a direct fitment reference for the rear position.
The DFC GEOSPEC Coated Rotor product line is positioned as a coated rotor solution for brake service where surface protection and consistent fitment matter. Part number 604-21058 is listed for the rear of the Kia EV9 and should be matched to the vehicle’s brake specifications before installation.
What This Rotor Helps Address
- Rear brake wear that requires rotor replacement
- Brake pulsation caused by rotor surface irregularity
- Corrosion on the rotor hat or braking surface area
- Noise related to uneven rotor contact
- Service needs on a 2024-2026 Kia EV9 rear brake system
Installation Notes and Tips
Confirm rotor dimensions, bolt pattern, center hole diameter, and rear-position fitment before installation. Clean the hub mounting surface thoroughly so the rotor seats flat and runs true. After installation, follow the vehicle manufacturer’s brake bedding procedure and verify pedal feel and rotor runout during the final inspection.
Quality Assurance
This rotor is part of Dynamic Friction’s DFC GEOSPEC Coated Rotor line and is cataloged with defined dimensional and fitment data for the rear Kia EV9 application. Part number 604-21058 should be verified against the vehicle’s brake specifications prior to service.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2026 | Kia | EV9 | Rear | DFC GEOSPEC Coated Rotor |
| 2025 | Kia | EV9 | Rear | DFC GEOSPEC Coated Rotor |
| 2024 | Kia | EV9 | Rear | DFC GEOSPEC Coated Rotor |
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