Centric 121.43008 Disc Brake Rotor - Front

Centric C-TEK Front Brake Rotor

The Centric C-TEK Standard Disc Brake Rotor, part number 121.43008, is built for front brake service on select Chevrolet, Geo, and Isuzu applications. It combines a smooth surface with vented construction to support consistent braking performance and dependable service life.

Key Features

• Centric C-TEK Standard Disc Brake Rotors line for everyday brake service
• Part number 121.43008
• Front disc brake rotor with vented design
• Smooth surface type for brake pad contact
• Outside diameter: 230 mm (9.055 in.)
• Nominal thickness: 18.000 mm (0.709 in.)
• Discard thickness: 16.600 mm (0.654 in.)
• Center hole diameter: 57.000 mm (2.244 in.)
• 4-lug pattern with 100 mm bolt circle diameter
• Straight vane style and floating disc mounting
• ABS tone ring not included; bearings not included

Product Details

Centric’s C-TEK Standard Disc Brake Rotors line focuses on practical replacement value for a wide range of braking applications. This rotor is engineered for front axle use and matches the fitment requirements for 1987-1988 Chevrolet Spectrum, 1989 Geo Spectrum, 1987-1989 Isuzu I-Mark, and 1991-1993 Isuzu Stylus. The 121.43008 rotor uses a vented, straight-vane design to help manage heat during repeated stops, while the smooth friction surface supports even pad contact.

This part cross-references Raybestos Brakes 9969R and Bosch 96314 for the same application.

What It Helps Address

• Brake pulsation caused by worn or out-of-spec front rotors
• Reduced stopping consistency from heat-affected rotor surfaces
• Noise and vibration linked to uneven rotor wear
• Service replacement needs on Chevrolet Spectrum, Geo Spectrum, Isuzu I-Mark, and Isuzu Stylus front brakes
• Rotor thickness loss approaching discard limits

Installation Notes and Tips

Verify rotor dimensions, hub fitment, and bolt pattern before installation. Clean the hub mounting surface thoroughly to help prevent runout-related brake pulsation. Inspect pads, calipers, and hardware condition during service, and replace worn components as needed to restore proper braking performance. Always confirm front-position application and match the rotor to the vehicle listed in the fitment data.

Quality Assurance

Centric positions the C-TEK Standard Disc Brake Rotors line as a service-focused replacement option with attention to performance, service life, and value. Part number 121.43008 is built to meet the dimensional requirements listed above for the confirmed front fitments.