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Centric 121.40100 Disc Brake Rotor - Front
Centric C-TEK Rotor for Acura MDX Front Brakes
Centric C-TEK Standard Disc Brake Rotor 121.40100 is a front brake rotor for 2017-2020 Acura MDX applications. It is built for consistent braking performance, dependable service life, and practical value in everyday driving.
Key Features
- Front disc brake rotor for 2017-2020 Acura MDX
- Centric C-TEK Standard Disc Brake Rotors line
- Vented rotor design with a smooth surface type
- Outside diameter: 12.992 in. / 330.000 mm
- Nominal thickness: 1.181 in. / 30.000 mm
- Discard thickness: 1.102 in. / 28.000 mm
- 5-lug pattern with 120.000 mm bolt circle diameter
- 44 vane straight vane style for airflow through the rotor
- Floating disc mounting with 70.000 mm center hole diameter
Product Details
The Centric C-TEK Standard Disc Brake Rotors line is positioned for drivers who want a straightforward replacement rotor with the dimensions and construction needed for routine brake service. Part number 121.40100 uses a vented, smooth-face design and a straight vane layout to support heat management during repeated stops. For Acura MDX front brake service, this rotor matches the listed fitment and key mounting dimensions, including the 5-lug, 120 mm bolt circle configuration.
This part cross-references AP Exhaust 44845 for the same application.
Common Brake Issues This Rotor Can Address
- Front brake pulsation caused by worn or uneven rotor surfaces
- Reduced braking consistency from rotors at or near discard thickness
- Noise related to rotor surface wear during braking
- Heat buildup in front brake service from a worn vented rotor
- Service replacement needs on 2017-2020 Acura MDX front brakes
Installation Notes and Tips
Verify rotor dimensions, hub fit, and bolt pattern before installation. Clean the hub mounting surface thoroughly to help the rotor seat evenly, and inspect pads, calipers, and hardware condition during brake service. After installation, follow the vehicle manufacturer’s brake bedding procedure to help establish consistent pad-to-rotor contact.
Quality Assurance
Centric markets the C-TEK Standard Disc Brake Rotors line as a value-focused replacement option for a wide range of applications. Part number 121.40100 is specified for 2017-2020 Acura MDX front brake use and is built to the listed dimensional and construction requirements.
| Brand | Centric |
|---|---|
| Part Number | 121.40100 |
| Position | C-TEK Standard Disc Brake Rotors, Front |
| Discard Thickness | 1.102 |
| Discard Thickness | 28.000 |
| Nominal Thickness | 1.181 |
| Nominal Thickness | 30.000 |
| Overall Height | 1.870 |
| Overall Height | 47.500 |
| Outside Diameter | 12.992 |
| Outside Diameter | 330.000 |
| ABS Tone Ring Included | No |
| Surface Type | Smooth |
| Solid Or Vented Type Rotor | Vented |
| Bearings Included | No |
| Center Hole Diameter | 2.756 |
| Center Hole Diameter | 70.000 |
| 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 | 6.012 |
| Hat ID [cntrc] mm | 152.700 |
| Misc Holes [cntrc] | 3 |
| OEM Vane Count [cntrc] | 44 |
| Vane Style [cntrc] | Straight |
| Weight [cntrc] kgs | 11.080 |
| Weight [cntrc] lbs | 24.400 |
This part fits 4 vehicles. Search below:
| Year | Make | Model | Submodel | Position | Notes |
|---|---|---|---|---|---|
| 2020 | Acura | MDX | Sport Hybrid | Front | C-TEK Standard Disc Brake Rotors |
| 2019 | Acura | MDX | Sport Hybrid | Front | C-TEK Standard Disc Brake Rotors |
| 2018 | Acura | MDX | Sport Hybrid | Front | C-TEK Standard Disc Brake Rotors |
| 2017 | Acura | MDX | Sport Hybrid | 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.