OE Quality
60-Day Returns

Centric 320.62135H Disc Brake Rotor - Rear
Reliable Disc Brake Rotor for Cadillac ATS
The Centric GCX Elemental Protection Disc Brake Rotor (part number 320.62135H) is engineered to provide consistent braking performance for your Cadillac ATS. Designed with a fully coated finish and high carbon content, this vented rotor offers durability and corrosion resistance to maintain optimal stopping power.
- Fully coated disc and hat finish for enhanced corrosion protection
- High carbon content for improved heat dissipation and reduced brake fade
- Vented rotor design with straight vanes to promote cooling
- Nominal outside diameter of 12.402 inches (315 mm) for precise fitment
- Compatible with 5-lug wheel configurations and 4.528 inch (115 mm) bolt circle diameter
- Solid smooth surface type for consistent pad contact
- Overall height of 1.890 inches (48 mm) ensuring proper alignment
About the Centric GCX Elemental Protection Product Line
The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line focuses on delivering rotors with advanced corrosion resistance and thermal management. The full coating on both the disc and hat surfaces helps prevent rust and extends rotor life, while the high carbon content improves heat dissipation during braking. This product line is designed to meet or exceed OEM specifications, making it a suitable replacement for your Cadillac ATS’s braking system.
Product Specifications and Features
This disc brake rotor features a nominal thickness of 0.906 inches (23 mm) with a discard thickness of 0.827 inches (21 mm), ensuring safe and reliable use within specified wear limits. The rotor is vented with straight vanes to facilitate airflow and cooling, reducing the risk of brake fade under heavy use. The smooth surface finish provides consistent friction and pad wear. The rotor’s center hole diameter measures 2.783 inches (70.7 mm), and it includes five stud/lug holes with a diameter of 0.551 inches (14 mm), matching the Cadillac ATS’s wheel hub specifications.
Common Applications and Problem Solving
- Replacement for worn or warped rotors causing brake pulsation
- Upgrading corroded rotors to prevent rust and extend service life
- Improving heat dissipation to reduce brake fade during heavy braking
- Restoring smooth braking performance and reducing noise
- Ensuring proper fitment for Cadillac ATS models requiring 5-lug vented rotors
Installation Notes and Tips
Ensure the rotor thickness is above the discard thickness of 0.827 inches (21 mm) before installation. Clean the hub surface to remove rust or debris for proper rotor seating. Use proper torque specifications on lug nuts to avoid rotor warping. This rotor does not include an ABS tone ring or bearings, so verify compatibility with your vehicle’s braking system. Professional installation is recommended to maintain safety and performance standards.
Quality Assurance and Warranty
Centric rotors are manufactured to meet or exceed OEM standards, providing reliable braking performance and durability. The full coating process protects against corrosion, extending rotor life. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.
| Brand | Centric |
|---|---|
| Part Number | 320.62135H |
| Position | Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content, Rear |
| Discard Thickness | 0.827 |
| Discard Thickness | 21.000 |
| Nominal Thickness | 0.906 |
| Nominal Thickness | 23.000 |
| Disc Finish | Fully coated |
| Hat Finish | Coated |
| Overall Height | 1.890 |
| Overall Height | 48.000 |
| Outside Diameter | 12.402 |
| Outside Diameter | 315.000 |
| ABS Tone Ring Included | No |
| Surface Type | Smooth |
| Solid Or Vented Type Rotor | Vented |
| Nominal Drum Diameter | 201.200 |
| Nominal Drum Diameter | 7.921 |
| Bearings Included | No |
| Center Hole Diameter | 2.783 |
| Center Hole Diameter | 70.700 |
| Mounting Bolt Hole Circle Diameter | 115.000 |
| Mounting Bolt Hole Circle Diameter | 4.528 |
| Stud/Lug Hole Quantity | 5 |
| Stud/Lug Hole Diameter | 0.551 |
| Stud/Lug Hole Diameter | 14.000 |
| Disc Mounting [cntrc] | Floating / dih |
| Hat ID [cntrc] in | 7.697 |
| Hat ID [cntrc] mm | 195.500 |
| Misc Holes [cntrc] | 1 |
| Vane Style [cntrc] | Straight |
| Weight [cntrc] kgs | 7.700 |
| Weight [cntrc] lbs | 16.950 |
This part fits 23 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2019 | Cadillac | ATS | Premium Performance | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2019 | Cadillac | ATS | Premium Luxury | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2019 | Cadillac | ATS | Luxury | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2019 | Cadillac | ATS | Coupe | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2019 | Cadillac | ATS | Base | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2018 | Cadillac | ATS | Sedan | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2018 | Cadillac | ATS | Premium Performance | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2018 | Cadillac | ATS | Premium Luxury | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2018 | Cadillac | ATS | Luxury | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2018 | Cadillac | ATS | Coupe | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2018 | Cadillac | ATS | Base | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2017 | Cadillac | ATS | Premium Performance | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2017 | Cadillac | ATS | Premium Luxury | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2017 | Cadillac | ATS | Performance | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2017 | Cadillac | ATS | Luxury | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2017 | Cadillac | ATS | Base | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2016 | Cadillac | ATS | Premium | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2016 | Cadillac | ATS | Performance | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2016 | Cadillac | ATS | Luxury | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2016 | Cadillac | ATS | Base | Rear | Standard Disc; Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
| 2015 | Cadillac | ATS | Rear | Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content | |
| 2014 | Cadillac | ATS | Rear | Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content | |
| 2013 | Cadillac | ATS | Rear | Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content |
* 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.