Centric 121.66049 Disc Brake Rotor - Front

Reliable Disc Brake Rotor for Chevrolet and GMC Vans

The Centric C-TEK Standard Disc Brake Rotor 121.66049 is engineered for dependable braking performance on Chevrolet Express 2500, Express 3500, GMC Savana 2500, and Savana 3500 models. Designed to meet OEM specifications, this vented rotor ensures consistent heat dissipation and smooth braking under demanding conditions.

• Vented disc brake rotor with straight vane design for improved cooling
• Nominal thickness of 1.535 inches (39.000 mm) with discard thickness at 1.465 inches (37.200 mm)
• Overall diameter of 12.5 inches (317.5 mm) and overall height of 4.953 inches (125.8 mm)
• Eight stud/lug holes with 14 mm stud thread diameter and 1.5 mm bolt thread pitch
• Center hole diameter of 4.587 inches (116.5 mm) and mounting bolt hole circle diameter of 6.5 inches (165.1 mm)
• Solid smooth surface type without ABS tone ring included
• Weight approximately 43.5 lbs (19.77 kgs)

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors manufactured to meet or exceed OEM standards, providing reliable braking performance for a variety of vehicle applications. This product line focuses on delivering rotors with precise fitment and consistent quality, making them suitable replacements for factory-installed components on Chevrolet and GMC vans such as the Express and Savana series.

Product Details and Specifications

This Centric disc brake rotor features a vented design with straight vanes that help dissipate heat efficiently during braking, reducing the risk of brake fade. The rotor's nominal thickness is 1.535 inches (39.000 mm), with a discard thickness of 1.465 inches (37.200 mm), indicating when replacement is necessary. The rotor mounts directly to the hub and rotor assembly, with eight lug holes sized for 14 mm studs and a bolt thread pitch of 1.5 mm. The smooth surface finish ensures consistent pad contact and braking performance. Note that this rotor does not include an ABS tone ring or bearings.

Compatible Vehicles and Applications

• Chevrolet Express 2500 and Express 3500
• GMC Savana 2500 and Savana 3500

This rotor is designed specifically for these models, ensuring proper fitment and reliable braking performance.

Common Issues Addressed by This Rotor

• Brake rotor warping or uneven wear causing vibration
• Reduced braking efficiency due to worn or thin rotors
• Overheating and brake fade during heavy-duty use
• Noise or pulsation during braking
• Corrosion or surface damage affecting rotor integrity

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 1.465 inches
• Ensure proper cleaning of rotor surface to remove any protective coatings
• Torque lug nuts to manufacturer specifications for Chevrolet and GMC Express or Savana models
• Inspect brake pads and replace if worn to maintain optimal braking performance
• Check hub and bearing condition during installation; this rotor does not include bearings

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details are not provided here, Centric products typically come with a limited warranty against defects in materials and workmanship. Refer to Centric's official documentation for complete warranty information.