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Centric 121.66043 Disc Brake Rotor - Rear
Reliable Disc Brake Rotor for Chevrolet, GMC, and Hummer
The Centric C-TEK Standard Disc Brake Rotor 121.66043 is engineered to provide consistent braking performance for heavy-duty vehicles. Designed specifically for select Chevrolet, GMC, and Hummer models, this vented rotor ensures effective heat dissipation and durability under demanding conditions.
- Vented disc brake rotor with straight vane design for improved cooling
- Nominal thickness of 1.142 inches (29.000 mm) and discard thickness of 1.043 inches (26.500 mm)
- Outside diameter measures 12.992 inches (330.000 mm) for precise fitment
- Overall height of 3.374 inches (85.700 mm) with 8 lug holes sized at 0.650 inches (16.500 mm)
- Center hole diameter of 4.630 inches (117.600 mm) for accurate mounting
- Solid smooth surface type without ABS tone ring included
- Weight approximately 24 lbs (10.910 kgs) for balanced performance
About the C-TEK Standard Disc Brake Rotors Line
The C-TEK Standard Disc Brake Rotors line by Centric is designed to meet OEM specifications for a wide range of vehicles. This product line focuses on delivering reliable braking components with precise dimensions and quality materials. The 121.66043 rotor exemplifies this approach by offering a vented design that enhances heat dissipation and maintains structural integrity, making it suitable for heavy-duty Chevrolet, GMC, and Hummer trucks and SUVs.
Technical Details and Compatibility
This disc brake rotor is compatible with Chevrolet Avalanche 2500, Express 2500 and 3500, GMC Sierra 1500, 1500 HD, 1500 HD Classic, 2500, Savana 2500 and 3500, Hummer H2, Suburban 2500, Silverado 1500, 1500 HD, 1500 HD Classic, 2500, and Yukon XL 2500 models. The rotor features a floating disc mounting style and a smooth surface finish, optimized for use without an ABS tone ring. The vented rotor design with straight vanes helps maintain optimal braking performance by reducing heat buildup during operation.
Common Issues Addressed by This Rotor
- Brake pulsation caused by warped or uneven rotors
- Reduced braking efficiency due to worn or thin rotors
- Excessive heat buildup leading to brake fade
- Noise and vibration from damaged or uneven rotor surfaces
- Compatibility issues with OEM brake components on specified models
Installation Notes and Tips
- Ensure rotor thickness is above discard thickness (1.043 inches) before installation
- Clean rotor surface and hub mounting area to prevent uneven contact
- Use proper torque specifications for the 8 lug bolts (0.650 inch diameter)
- Check for proper alignment with caliper and brake pads
- Inspect related brake components such as pads and calipers during installation
Quality Assurance and Warranty
Centric's C-TEK Standard Disc Brake Rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number 121.66043 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. It is recommended to consult the product documentation or Centric directly for exact warranty terms.
| Brand | Centric |
|---|---|
| Part Number | 121.66043 |
| Position | C-TEK Standard Disc Brake Rotors, Rear |
| ABS Tone Ring Included | No |
| Bearings Included | No |
| Center Hole Diameter | 4.630 |
| Center Hole Diameter | 117.600 |
| Disc Mounting [cntrc] | Floating / DIH |
| Discard Thickness | 1.043 |
| Discard Thickness | 26.500 |
| Misc Holes [cntrc] | 0 |
| Mounting Bolt Hole Circle Diameter | 6.500 |
| Mounting Bolt Hole Circle Diameter | 165.100 |
| Nominal Drum Diameter | 8.110 |
| Nominal Drum Diameter | 206.000 |
| Nominal Thickness | 1.142 |
| Nominal Thickness | 29.000 |
| Outside Diameter | 12.992 |
| Outside Diameter | 330.000 |
| Overall Height | 3.374 |
| Overall Height | 85.700 |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Diameter | 0.650 |
| Stud/Lug Hole Diameter | 16.500 |
| Stud/Lug Hole Quantity | 8 |
| Surface Type | Smooth |
| Vane Style [cntrc] | Straight |
| Weight [cntrc] kgs | 10.910 |
| Weight [cntrc] lbs | 24.000 |
This part fits 135 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2022 | Chevrolet | Express 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2022 | Chevrolet | Express 3500 | Rear | SRW; JH6; C-TEK Standard Disc Brake Rotors | ||||||
| 2022 | GMC | Savana 3500 | Rear | SRW; JH6; C-TEK Standard Disc Brake Rotors | ||||||
| 2021 | Chevrolet | Express 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2021 | Chevrolet | Express 3500 | Rear | Single Rear Wheel; C-TEK Standard Disc Brake Rotors | ||||||
| 2021 | GMC | Savana 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2021 | GMC | Savana 3500 | Rear | Single Rear Wheel; C-TEK Standard Disc Brake Rotors | ||||||
| 2020 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2020 | Chevrolet | Express 3500 | Rear | Fitment: Designed for vehicles with Single Rear Wheel setups; C-TEK Standard Disc Brake Rotors | ||||||
| 2020 | GMC | Savana 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2019 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2019 | Chevrolet | Express 3500 | Rear | Fitment: Designed for vehicles with Single Rear Wheel setups; C-TEK Standard Disc Brake Rotors | ||||||
| 2019 | GMC | Savana 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2019 | GMC | Savana 3500 | Rear | Fitment: Designed for vehicles with Single Rear Wheel setups; C-TEK Standard Disc Brake Rotors | ||||||
| 2018 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2018 | Chevrolet | Express 3500 | Rear | Fitment: Designed for vehicles with Single Rear Wheel setups; C-TEK Standard Disc Brake Rotors | ||||||
| 2018 | GMC | Savana 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2018 | GMC | Savana 3500 | Rear | Fitment: Designed for vehicles with Single Rear Wheel setups; C-TEK Standard Disc Brake Rotors | ||||||
| 2017 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2017 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2017 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2017 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2016 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2016 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2016 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2016 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2015 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2015 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2015 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2015 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2014 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2014 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2014 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2014 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2013 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2013 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2013 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2013 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2012 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2012 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2012 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2012 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2011 | Chevrolet | Express 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2011 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2011 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2011 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2010 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2010 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2010 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2009 | Chevrolet | Express 2500 | GAS | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2009 | Chevrolet | Express 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2009 | GMC | Savana 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2009 | GMC | Savana 3500 | Rear | SRW; 86mm Tall Disc; C-TEK Standard Disc Brake Rotors | ||||||
| 2009 | Hummer | H2 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2008 | Chevrolet | Express 2500 | GAS | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2008 | Chevrolet | Express 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2008 | GMC | Savana 2500 | GAS | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2008 | GMC | Savana 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2008 | Hummer | H2 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2007 | Chevrolet | Express 2500 | GAS | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2007 | Chevrolet | Express 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2007 | Chevrolet | Silverado 1500 HD Classic | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2007 | Chevrolet | Suburban 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2007 | GMC | Savana 2500 | GAS | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2007 | GMC | Savana 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2007 | GMC | Sierra 1500 HD Classic | Rear | Classic GMT 800; Heavy Duty; C-TEK Standard Disc Brake Rotors | ||||||
| 2007 | GMC | Yukon XL 2500 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2007 | Hummer | H2 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | Chevrolet | Avalanche 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | Chevrolet | Express 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | Chevrolet | Express 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | Chevrolet | Silverado 1500 HD | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | Chevrolet | Suburban 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | GMC | Savana 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | GMC | Savana 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | GMC | Sierra 1500 HD | Rear | 8 Lug; Heavy Duty; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | GMC | Yukon XL 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2006 | Hummer | H2 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | Chevrolet | Avalanche 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | Chevrolet | Express 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | Chevrolet | Express 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | Chevrolet | Silverado 1500 | Crew Cab Pickup | 4WD | Rear | 2 Wheel Steering; C-TEK Standard Disc Brake Rotors | ||||
| 2005 | Chevrolet | Silverado 1500 HD | Rear | 2 Wheel Steering; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | Chevrolet | Suburban 2500 | Rear | 2 Wheel Steering; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | GMC | Savana 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | GMC | Savana 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | GMC | Sierra 1500 HD | RWD | Rear | 2 Wheel Steering; Heavy Duty; C-TEK Standard Disc Brake Rotors | |||||
| 2005 | GMC | Sierra 1500 HD | 4WD | Rear | 2 Wheel Steering; 8 Lug; Heavy Duty; C-TEK Standard Disc Brake Rotors | |||||
| 2005 | GMC | Yukon XL 2500 | Rear | 2 Wheel Steering; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2005 | Hummer | H2 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | Chevrolet | Avalanche 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | Chevrolet | Express 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | Chevrolet | Express 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | Chevrolet | Silverado 1500 | Rear | 8 Lug Wheels; Heavy Duty Package; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | Chevrolet | Silverado 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2004 | Chevrolet | Suburban 2500 | Rear | 2 Wheel Steering; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | GMC | Savana 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | GMC | Savana 3500 | Rear | 86mm Tall; SRW; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | GMC | Sierra 1500 | Rear | 8 Lug Wheels; Heavy Duty Package; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | GMC | Sierra 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2004 | GMC | Yukon XL 2500 | Rear | 2 Wheel Steering; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2004 | Hummer | H2 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | Chevrolet | Avalanche 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | Chevrolet | Express 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | Chevrolet | Silverado 1500 HD | Rear | 2 Wheel Steering; C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | Chevrolet | Silverado 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2003 | Chevrolet | Suburban 2500 | Rear | 2 Wheel Steering; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | GMC | Savana 2500 | Rear | 8 Lug; 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | GMC | Sierra 1500 HD | Rear | 2 Wheel Steering; C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | GMC | Sierra 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2003 | GMC | Yukon XL 2500 | Rear | 2 Wheel Steering; 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2003 | Hummer | H2 | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2002 | Chevrolet | Avalanche 2500 | Rear | 86mm Tall; C-TEK Standard Disc Brake Rotors | ||||||
| 2002 | Chevrolet | Silverado 1500 HD | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2002 | Chevrolet | Silverado 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2002 | Chevrolet | Suburban 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2002 | GMC | Sierra 1500 HD | Rear | C-TEK Standard Disc Brake Rotors | ||||||
| 2002 | GMC | Sierra 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2002 | GMC | Yukon XL 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2001 | Chevrolet | Silverado 1500 HD | 4WD | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2001 | Chevrolet | Silverado 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2001 | Chevrolet | Suburban 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2001 | GMC | Sierra 1500 HD | 4WD | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2001 | GMC | Sierra 2500 | Automatic | Rear | C-TEK Standard Disc Brake Rotors | |||||
| 2001 | GMC | Yukon XL 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2000 | Chevrolet | Silverado 2500 | Automatic | 6.0L | V8 | Rear | C-TEK Standard Disc Brake Rotors | |||
| 2000 | Chevrolet | Silverado 2500 | 5.3L | V8 | Rear | C-TEK Standard Disc Brake Rotors | ||||
| 2000 | Chevrolet | Suburban 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 2000 | GMC | Sierra 2500 | Automatic | 6.0L | V8 | Rear | C-TEK Standard Disc Brake Rotors | |||
| 2000 | GMC | Sierra 2500 | 5.3L | V8 | Rear | C-TEK Standard Disc Brake Rotors | ||||
| 2000 | GMC | Yukon XL 2500 | Rear | 4.63" Hub Hole; C-TEK Standard Disc Brake Rotors | ||||||
| 1999 | Chevrolet | Silverado 2500 | Automatic | 6.0L | V8 | Rear | C-TEK Standard Disc Brake Rotors | |||
| 1999 | Chevrolet | Silverado 2500 | 5.3L | V8 | Rear | C-TEK Standard Disc Brake Rotors | ||||
| 1999 | GMC | Sierra 2500 | Automatic | 6.0L | V8 | Rear | C-TEK Standard Disc Brake Rotors | |||
| 1999 | GMC | Sierra 2500 | 5.3L | V8 | Rear | 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.