Centric 121.66036 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.66036

The Centric C-TEK Standard Disc Brake Rotor 121.66036 is engineered for reliable braking performance on Chevrolet, GMC, Isuzu, and Oldsmobile vehicles. Designed specifically for models like the Blazer, Bravada, Hombre, Jimmy, S10, and Sonoma, this vented rotor ensures consistent heat dissipation and durability under demanding conditions.

• Vented disc brake rotor with smooth surface finish
• Nominal thickness of 0.787 inches (20.000 mm) and discard thickness of 0.728 inches (18.500 mm)
• Overall height of 3.740 inches (95.000 mm) for precise fitment
• Outside diameter measures 11.614 inches (295.000 mm)
• Five stud/lug holes with 0.520 inch (13.200 mm) diameter and 4.748 inch (120.600 mm) bolt circle diameter
• Center hole diameter of 2.783 inches (70.700 mm)
• Weight approximately 16 lbs (7.270 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 a balance of quality and value for replacement rotors. These rotors are designed to meet or exceed OEM specifications, providing consistent braking performance and durability. The 121.66036 rotor is part of this line, featuring vented construction to improve heat dissipation and reduce brake fade, making it suitable for daily driving and moderate towing or hauling applications on compatible Chevrolet, GMC, Isuzu, and Oldsmobile models.

Detailed Product Description

This Centric disc brake rotor is a vented type, which means it has internal vanes designed in a straight style to enhance airflow and cooling during braking. 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 provides a clear service life indicator for replacement. The rotor’s overall height and outside diameter are engineered for exact fitment on vehicles such as the Chevrolet Blazer and GMC Jimmy. The five lug holes and mounting bolt circle diameter align with factory specifications, ensuring straightforward installation without modifications.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Improving heat dissipation to reduce brake fade during extended use
• Restoring smooth braking performance on Chevrolet S10 and GMC Sonoma
• Compatible upgrade for Isuzu Hombre and Oldsmobile Bravada brake systems

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum discard thickness
• Clean rotor surface to remove any protective coating or debris prior to mounting
• Use proper torque specifications on lug nuts to avoid rotor warping
• Check compatibility with vehicle ABS system; 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 C-TEK Standard Disc Brake Rotors are manufactured to meet OEM standards for fit, form, and function. While specific warranty details for part number 121.66036 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Buyers should consult product documentation or Centric directly for warranty terms related to this rotor.