Centric 121.66016 Disc Brake Rotor - Front

Overview of Centric C-TEK Standard Disc Brake Rotor 121.66016

The Centric C-TEK Standard Disc Brake Rotor 121.66016 is engineered for reliable braking performance on Chevrolet Astro and GMC Safari vehicles. Designed to meet OEM specifications, this vented rotor includes an ABS tone ring and features a smooth surface for consistent pad contact.

• Compatible with Chevrolet Astro and GMC Safari models
• Part number 121.66016 for precise identification
• Vented disc design for improved heat dissipation
• Includes ABS tone ring for accurate sensor feedback
• Smooth surface type for even brake pad wear
• 5 lug holes with 0.5 inch stud thread diameter
• Overall diameter of 11.85 inches (301 mm)
• Nominal thickness of 1.039 inches (26.4 mm) with discard thickness at 0.965 inches (24.5 mm)

Detailed Product Features and Specifications

This Centric C-TEK Standard Disc Brake Rotor 121.66016 is a vented rotor designed to enhance cooling during braking, reducing the risk of brake fade. The rotor measures 11.85 inches (301 mm) in outside diameter and has a nominal thickness of 1.039 inches (26.4 mm), with a discard thickness of 0.965 inches (24.5 mm), ensuring it meets safety standards for replacement. It features a smooth surface type that promotes even brake pad wear and consistent stopping power. The rotor includes an ABS tone ring, which is essential for vehicles equipped with ABS systems, providing accurate wheel speed data to the vehicle’s control module. Mounting is facilitated by a 5-lug hole pattern with a 0.5 inch stud thread diameter and a bolt hole circle diameter of 5 inches (127 mm). The center hole diameter is 3.063 inches (77.8 mm), designed for hub and rotor mounting. The rotor weighs approximately 26.5 lbs (12.05 kgs) and incorporates straight vane style cooling vanes to maintain optimal operating temperatures.

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 specifications, providing dependable braking performance for a variety of vehicle applications. This product line focuses on delivering rotors with precise fitment, consistent thickness, and quality materials to ensure safety and durability. The 121.66016 rotor is part of this line, designed specifically for Chevrolet Astro and GMC Safari models, combining vented rotor technology with ABS tone ring integration for modern braking systems.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Restores braking performance affected by rotor thickness below discard limits
• Addresses ABS sensor errors due to damaged or missing tone rings
• Improves heat dissipation to reduce brake fade during heavy use
• Eliminates uneven brake pad wear caused by rotor surface irregularities

Installation Notes and Tips

• Ensure rotor thickness is within nominal specifications before installation
• Clean mounting surfaces to prevent rotor runout and vibration
• Verify ABS tone ring alignment with sensor for proper ABS function
• Torque lug nuts to manufacturer specifications to avoid rotor distortion
• Inspect related components such as bearings and seals (inner bearing #410.91006, outer bearing #410.91003, inner seal #417.66004) during installation

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured under strict quality control standards to ensure durability and performance. While specific warranty details for part number 121.66016 should be confirmed with the supplier, Centric generally offers coverage against defects in materials and workmanship. This rotor is engineered to meet OEM fitment and performance requirements for Chevrolet Astro and GMC Safari vehicles.