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Centric 121.66065 Disc Brake Rotor - Rear
Reliable Disc Brake Rotor for GM Trucks and SUVs
The Centric C-TEK Standard Disc Brake Rotor 121.66065 is engineered to provide consistent braking performance for select Cadillac, Chevrolet, and GMC vehicles. Designed specifically for models like the Chevrolet Silverado 1500 and GMC Sierra 1500, this vented rotor ensures effective heat dissipation and durability under demanding conditions.
- Vented disc brake rotor with smooth surface finish
- Outside diameter: 13.583 inches (345.0 mm)
- Nominal thickness: 0.787 inches (20.0 mm); discard thickness: 0.728 inches (18.5 mm)
- Overall height: 3.362 inches (85.4 mm)
- 6 lug holes with 0.650 inch (16.5 mm) diameter
- Center hole diameter: 3.091 inches (78.5 mm)
- Mounting bolt hole circle diameter: 5.5 inches (139.7 mm)
- Weight approximately 21.5 lbs (9.77 kgs)
- ABS tone ring not included
About the C-TEK Standard Disc Brake Rotors Line
The C-TEK Standard Disc Brake Rotors line by Centric offers reliable replacement rotors designed to meet or exceed OEM specifications. This product line focuses on providing solid and vented rotors with precise fitment and consistent performance. The 121.66065 rotor is a vented type with straight vanes, engineered to maintain optimal braking efficiency and heat management for heavy-duty applications in trucks and SUVs.
Product Details and Specifications
This Centric rotor features a vented design with straight vanes to improve airflow and reduce brake fade during extended use. The smooth surface finish ensures even pad contact and reduces noise. With a nominal thickness of 0.787 inches and a discard thickness of 0.728 inches, this rotor maintains structural integrity throughout its service life. The rotor’s overall height of 3.362 inches and precise mounting dimensions ensure compatibility with specific GM models including Cadillac Escalade, Chevrolet Tahoe, and GMC Yukon XL.
Common Applications and Problem Solving
- Replacement for worn or warped rotors causing brake pulsation
- Restores braking performance on Chevrolet Silverado 1500 and GMC Sierra 1500
- Addresses excessive brake noise due to uneven rotor surfaces
- Improves heat dissipation to reduce brake fade in heavy-duty use
- Compatible with vehicles lacking ABS tone ring requirements
Installation Notes and Tips
- Ensure rotor thickness is above discard thickness before installation
- Clean rotor surface to remove any protective coating before mounting
- Verify bolt hole alignment and lug hole count (6 lug holes) for proper fit
- Check caliper and pad condition to complement rotor replacement
- Torque lug nuts to manufacturer specifications to avoid rotor warping
Quality Assurance and Warranty
Centric’s C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards and OEM fitment requirements. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Using part number 121.66065 ensures compatibility with select Cadillac, Chevrolet, and GMC trucks and SUVs, providing a dependable braking solution.
| Brand | Centric |
|---|---|
| Part Number | 121.66065 |
| Position | C-TEK Standard Disc Brake Rotors, Rear |
| ABS Tone Ring Included | No |
| Bearings Included | No |
| Center Hole Diameter | 3.091 |
| Center Hole Diameter | 78.500 |
| Disc Mounting [cntrc] | Floating / DIH |
| Discard Thickness | 0.728 |
| Discard Thickness | 18.500 |
| Hat ID [cntrc] in | 7.343 |
| Hat ID [cntrc] mm | 186.500 |
| Max PB Drum Dia [cntrc] in | 8.339 |
| Max PB Drum Dia [cntrc] mm | 211.800 |
| Misc Holes [cntrc] | 2 |
| Mounting Bolt Hole Circle Diameter | 5.500 |
| Mounting Bolt Hole Circle Diameter | 139.700 |
| Nominal Drum Diameter | 8.248 |
| Nominal Drum Diameter | 209.500 |
| Nominal Thickness | 0.787 |
| Nominal Thickness | 20.000 |
| Outside Diameter | 13.583 |
| Outside Diameter | 345.000 |
| Overall Height | 3.362 |
| Overall Height | 85.400 |
| Solid Or Vented Type Rotor | Vented |
| Stud/Lug Hole Diameter | 0.650 |
| Stud/Lug Hole Diameter | 16.500 |
| Stud/Lug Hole Quantity | 6 |
| Surface Type | Smooth |
| Vane Style [cntrc] | Straight |
| Weight [cntrc] kgs | 9.770 |
| Weight [cntrc] lbs | 21.500 |
This part fits 136 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2020 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2020 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2020 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2020 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2020 | GMC | Yukon XL | Rear | C-TEK Standard Disc Brake Rotors |
| 2019 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2019 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2019 | Chevrolet | Silverado 1500 | Rear | Old Body Style; C-TEK Standard Disc Brake Rotors |
| 2019 | Chevrolet | Silverado 1500 LD | Rear | CTEK Standard Disc Brake Rotors |
| 2019 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2019 | GMC | Sierra 1500 | Rear | Old Body Style; C-TEK Standard Disc Brake Rotors |
| 2019 | GMC | Sierra 1500 Limited | Rear | Old Body Style; C-TEK Standard Disc Brake Rotors |
| 2019 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2019 | GMC | Yukon XL | Rear | C-TEK Standard Disc Brake Rotors |
| 2018 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2018 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2018 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2018 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2018 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2018 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2018 | GMC | Yukon XL | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2017 | GMC | Yukon XL | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2016 | GMC | Yukon XL | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2015 | GMC | Yukon XL | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | Chevrolet | Suburban 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2014 | GMC | Yukon XL 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Cadillac | Escalade EXT | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Chevrolet | Avalanche | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Chevrolet | Suburban 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2013 | GMC | Yukon XL 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Cadillac | Escalade EXT | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Chevrolet | Avalanche | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Chevrolet | Suburban 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2012 | GMC | Yukon XL 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Cadillac | Escalade EXT | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Chevrolet | Avalanche | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Chevrolet | Suburban 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2011 | GMC | Yukon XL 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Cadillac | Escalade EXT | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Chevrolet | Avalanche | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Chevrolet | Cheyenne | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Chevrolet | Suburban 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2010 | GMC | Yukon XL 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | Cadillac | Escalade | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | Cadillac | Escalade ESV | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | Cadillac | Escalade EXT | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | Chevrolet | Avalanche | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | Chevrolet | Suburban 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | GMC | Sierra 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2009 | GMC | Yukon XL 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2008 | Cadillac | Escalade | Rear | Front Bracket Cast# 351C/352C; C-TEK Standard Disc Brake Rotors |
| 2008 | Cadillac | Escalade ESV | Rear | Front Bracket Cast# 351C/352C; C-TEK Standard Disc Brake Rotors |
| 2008 | Cadillac | Escalade EXT | Rear | Front Bracket Cast# 351C/352C; C-TEK Standard Disc Brake Rotors |
| 2008 | Chevrolet | Avalanche | Rear | Front Bracket Cast# 351C/352C; C-TEK Standard Disc Brake Rotors |
| 2008 | Chevrolet | Silverado 1500 | Rear | C-TEK Standard Disc Brake Rotors |
| 2008 | Chevrolet | Suburban 1500 | Rear | Front Bracket Cast# 351C/352C; C-TEK Standard Disc Brake Rotors |
| 2008 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2008 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2008 | GMC | Sierra 1500 | Rear | Front Caliper Bracket Cast #351C/352C; C-TEK Standard Disc Brake Rotors |
| 2008 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2008 | GMC | Yukon XL 1500 | Rear | Front Bracket Cast# 351C/352C; C-TEK Standard Disc Brake Rotors |
| 2007 | Cadillac | Escalade | Rear | Front Bracket Cast# 285C/286C; C-TEK Standard Disc Brake Rotors |
| 2007 | Cadillac | Escalade ESV | Rear | Front Bracket Cast# 285C/286C; C-TEK Standard Disc Brake Rotors |
| 2007 | Cadillac | Escalade EXT | Rear | Front Bracket Cast# 285C/286C; C-TEK Standard Disc Brake Rotors |
| 2007 | Chevrolet | Avalanche | Rear | Front Bracket Cast# 285C/286C; C-TEK Standard Disc Brake Rotors |
| 2007 | Chevrolet | Silverado 1500 | Rear | New Silverado GMT 900; C-TEK Standard Disc Brake Rotors |
| 2007 | Chevrolet | Suburban 1500 | Rear | Front Bracket Cast# 285C/286C; C-TEK Standard Disc Brake Rotors |
| 2007 | Chevrolet | Tahoe | Rear | C-TEK Standard Disc Brake Rotors |
| 2007 | GMC | Sierra | Rear | C-TEK Standard Disc Brake Rotors |
| 2007 | GMC | Sierra 1500 | Rear | New Sierra GMT 900; C-TEK Standard Disc Brake Rotors |
| 2007 | GMC | Yukon | Rear | C-TEK Standard Disc Brake Rotors |
| 2007 | GMC | Yukon XL 1500 | Rear | Front Bracket Cast# 285C/286C; 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.