Centric 121.66054 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.66054

The Centric C-TEK Standard Disc Brake Rotor 121.66054 is engineered for reliable braking performance on Chevrolet Express 2500 and GMC Savana 2500 vehicles. Designed as a vented rotor with a smooth surface, it provides consistent stopping power and heat dissipation for these heavy-duty vans.

• Compatible with Chevrolet Express 2500 and GMC Savana 2500
• Part number 121.66054 for precise identification
• Vented disc brake rotor design for improved cooling
• Nominal outside diameter of 330 mm (12.992 inches)
• Nominal thickness of 29.000 mm (1.142 inches) with discard thickness at 26.500 mm (1.043 inches)
• Overall height of 87.000 mm (3.425 inches)
• Six stud/lug holes with 16.300 mm (0.642 inches) diameter
• Straight vane style for effective airflow
• Center hole diameter of 78.500 mm (3.091 inches)
• Does not include ABS tone ring or bearings

Product Line Details: C-TEK Standard Disc Brake Rotors

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for standard braking applications. This product line focuses on delivering consistent performance with vented rotors that help maintain optimal operating temperatures. The 121.66054 rotor fits within this line, providing a smooth surface and straight vane design to support effective heat dissipation and reliable stopping power for Chevrolet Express 2500 and GMC Savana 2500 models.

Technical Specifications and Features

This vented disc brake rotor features a nominal outside diameter of 330 mm (12.992 inches) and a nominal thickness of 29.000 mm (1.142 inches), ensuring compatibility with the braking system of the specified vehicles. The discard thickness is 26.500 mm (1.043 inches), indicating the minimum thickness before replacement is necessary. The rotor’s overall height measures 87.000 mm (3.425 inches), and it includes six stud/lug holes with a diameter of 16.300 mm (0.642 inches) arranged on a 140 mm (5.512 inches) bolt circle diameter. The straight vane style enhances airflow to reduce heat buildup during braking. This rotor does not include an ABS tone ring or bearings, so those components must be sourced separately if required.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Chevrolet Express 2500 and GMC Savana 2500
• Addresses brake fade caused by overheating during heavy-duty use
• Resolves vibration or pulsation issues due to uneven rotor surfaces
• Improves braking consistency and pedal feel
• Restores proper rotor thickness to maintain safe braking performance

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surfaces to prevent rotor runout
• Torque lug nuts to manufacturer specifications for proper fitment
• Check compatibility with existing brake pads and hardware
• ABS tone ring and bearings are not included and must be installed separately if needed

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet OEM standards for fit, form, and function. The 121.66054 rotor undergoes rigorous quality control to ensure durability and consistent braking performance. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Consult product documentation or Centric directly for warranty terms related to this part.