Centric 121.66032 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.66032

The Centric C-TEK Standard Disc Brake Rotor 121.66032 is engineered for reliable braking performance on Chevrolet and GMC P30 and P3500 models. Designed as a vented rotor with a smooth surface, it offers consistent heat dissipation and durability for heavy-duty applications.

• Compatible with Chevrolet P30 and GMC P3500 vehicles
• Part number 121.66032 for precise identification
• Vented disc brake rotor design for improved cooling
• Overall diameter of 344.9 mm (13.579 inches)
• Mounting bolt hole quantity: 10 with 184.2 mm bolt circle diameter
• Nominal thickness of 36.2 mm and discard thickness of 34.7 mm
• Smooth surface type for consistent pad contact
• Center hole diameter of 139.8 mm for proper hub fitment
• Weight approximately 16.36 kg (36 lbs)

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor 121.66032 is a vented rotor designed to fit behind the hub, featuring straight vane style for effective airflow and heat dissipation. The rotor’s nominal thickness of 36.2 mm and discard thickness of 34.7 mm ensure it meets the required safety standards for replacement parts. With a smooth surface finish, it provides consistent braking contact and reduces uneven pad wear. The rotor includes 10 mounting bolt holes with a 184.2 mm bolt circle diameter and 17 mm bolt hole diameter, ensuring secure installation on Chevrolet P30 and GMC P3500 models. The center hole diameter of 139.8 mm allows for proper centering on the hub, contributing to balanced braking performance.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers a range of rotors designed to meet OEM specifications for standard braking applications. This product line focuses on delivering reliable, consistent performance with vented rotor designs that help manage heat buildup during braking. The 121.66032 rotor is part of this line, providing a balance of durability and fitment accuracy for Chevrolet and GMC heavy-duty vehicles.

Common Applications and Issues Addressed

• Replacement for worn or warped rotors on Chevrolet P30 and GMC P3500
• Resolves brake pulsation caused by uneven rotor thickness
• Improves heat dissipation to reduce brake fade during heavy use
• Restores proper rotor thickness to maintain braking efficiency
• Eliminates noise and vibration related to damaged rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (34.7 mm) before installation
• Clean mounting surfaces to prevent rotor runout
• Torque mounting bolts to manufacturer specifications for secure fitment
• Check compatibility with ABS systems; this rotor does not include an ABS tone ring
• Inspect brake pads and replace if worn to ensure optimal rotor performance

Quality Assurance and Warranty

Centric manufactures the C-TEK Standard Disc Brake Rotors to meet or exceed OEM standards for fit, form, and function. While specific warranty details for part number 121.66032 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Users should consult product documentation or Centric directly for warranty terms related to this rotor.