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Centric 121.40088 Disc Brake Rotor - Front
Centric Front Brake Rotor for Acura RLX
The Centric C-TEK Standard Disc Brake Rotor, part number 121.40088, is built for front brake service on the 2014-2020 Acura RLX. It combines a smooth surface, vented construction, and OE-style dimensions to support consistent braking performance and dependable service life.
Key Features
- Fits 2014-2020 Acura RLX, front
- Centric C-TEK Standard Disc Brake Rotors line
- Part number 121.40088
- Vented rotor design with smooth surface finish
- Outside diameter: 12.280 in. / 311.900 mm
- Nominal thickness: 0.984 in. / 25.000 mm
- Discard thickness: 0.906 in. / 23.000 mm
- 5-lug pattern with 120.000 mm bolt circle
- Straight vane style with 60 vane count
- Floating disc mounting and 4 misc holes
Product Details
Centric’s C-TEK Standard Disc Brake Rotors are positioned as a practical OE-style replacement line for everyday brake service. This rotor uses a vented, straight-vane design to help manage heat during repeated stops, while the smooth surface supports proper pad contact during break-in. For Acura RLX front brake repair, part number 121.40088 provides the dimensions and mounting layout needed for a direct-fit replacement on listed applications.
This part cross-references Raybestos Brakes 981019R for the same application.
Common Brake Issues This Rotor Can Address
- Front brake pulsation caused by rotor wear or thickness variation
- Reduced braking consistency from a worn or heat-affected rotor
- Noise or vibration related to uneven rotor surface condition
- Service replacement needs when the rotor reaches discard thickness
- Brake pad contact issues from an out-of-spec front rotor
Installation Notes and Tips
Verify rotor dimensions, hub fitment, and bolt pattern before installation. Clean the hub mounting surface thoroughly to help prevent runout-related brake pulsation. After installation, follow the pad manufacturer’s break-in procedure and confirm proper torque on all wheel fasteners. Fits 2014-2020 Acura RLX, front.
Quality Assurance
Centric manufactures the C-TEK Standard Disc Brake Rotors line for service replacement applications where OE-style fit and measured specifications matter. Part number 121.40088 is built to the listed dimensions and configuration for the confirmed Acura RLX front application.
| Brand | Centric |
|---|---|
| Part Number | 121.40088 |
| Position | C-TEK Standard Disc Brake Rotors, Front |
| Discard Thickness | 0.906 |
| Discard Thickness | 23.000 |
| Nominal Thickness | 0.984 |
| Nominal Thickness | 25.000 |
| Overall Height | 1.858 |
| Overall Height | 47.200 |
| Outside Diameter | 12.280 |
| Outside Diameter | 311.900 |
| ABS Tone Ring Included | No |
| Surface Type | Smooth |
| Solid Or Vented Type Rotor | Vented |
| Bearings Included | No |
| Center Hole Diameter | 2.760 |
| Center Hole Diameter | 70.100 |
| Mounting Bolt Hole Circle Diameter | 120.000 |
| Mounting Bolt Hole Circle Diameter | 4.724 |
| Stud/Lug Hole Quantity | 5 |
| Stud/Lug Hole Diameter | 0.571 |
| Stud/Lug Hole Diameter | 14.500 |
| Disc Mounting [cntrc] | Floating |
| Hat ID [cntrc] in | 6.102 |
| Hat ID [cntrc] mm | 155.000 |
| Misc Holes [cntrc] | 4 |
| OEM Vane Count [cntrc] | 60 |
| Vane Style [cntrc] | Straight |
| Weight [cntrc] kgs | 8.640 |
| Weight [cntrc] lbs | 19.050 |
This part fits 9 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2020 | Acura | RLX | Base | Front | C-TEK Standard Disc Brake Rotors |
| 2019 | Acura | RLX | Base | Front | C-TEK Standard Disc Brake Rotors |
| 2018 | Acura | RLX | Base | Front | C-TEK Standard Disc Brake Rotors |
| 2017 | Acura | RLX | Base | Front | C-TEK Standard Disc Brake Rotors |
| 2016 | Acura | RLX | Base | Front | C-TEK Standard Disc Brake Rotors |
| 2015 | Acura | RLX | Tech | Front | C-TEK Standard Disc Brake Rotors |
| 2015 | Acura | RLX | Elite | Front | C-TEK Standard Disc Brake Rotors |
| 2015 | Acura | RLX | Base | Front | C-TEK Standard Disc Brake Rotors |
| 2014 | Acura | RLX | Base | Front | C-TEK Standard Disc Brake Rotors |
* 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.