Centric 121.62025 Disc Brake Rotor - Rear

Rear Brake Rotor for Pontiac Firebird

The Centric C-TEK Standard Disc Brake Rotor 121.62025 is a rear vented rotor built for 1979-1981 Pontiac Firebird applications. It combines a smooth surface, OE-style dimensions, and Centric’s standard replacement design for consistent braking service.

Centric’s C-TEK Standard Disc Brake Rotors line focuses on practical replacement value and dependable service life across everyday driving conditions. This rotor follows that approach with a vented construction and application-specific sizing for the rear brake system on the Pontiac Firebird.

Key Features

• Part number 121.62025
• Rear disc brake rotor for 1979-1981 Pontiac Firebird
• Vented rotor design with straight vanes
• Smooth surface type
• Outside diameter: 11.161 in. (283.500 mm)
• Nominal thickness: 0.980 in. (24.890 mm)
• Discard thickness: 0.906 in. (23.000 mm)
• Center hole diameter: 2.787 in. (70.800 mm)
• 5-lug pattern with 4.750 in. bolt circle
• Floating disc mounting

Detailed Description

Centric 121.62025 is a rear brake rotor engineered for the Pontiac Firebird from 1979 through 1981. The vented rotor design helps manage heat during repeated stops, while the smooth friction surface supports even pad contact after proper bedding. With a 5-lug, 4.750-inch bolt circle and OE-style dimensions, this rotor is built for direct rear brake service on the listed Firebird applications.

This part cross-references Monroe Shocks & Struts (e.g., 5560) for the same application. If you are replacing worn rear rotors on a 1979 Pontiac Firebird, 1980 Pontiac Firebird, or 1981 Pontiac Firebird, part number 121.62025 provides a straightforward replacement option within the Centric C-TEK Standard Disc Brake Rotors line.

What It Helps Address

• Brake pulsation caused by worn or uneven rear rotors
• Reduced braking consistency from heat-affected rotor surfaces
• Noise or vibration linked to rotor wear
• Rear brake service on 1979-1981 Pontiac Firebird models
• Replacement of rotors that have reached discard thickness

Installation Notes and Tips

Verify rotor dimensions, hub fit, and rear brake configuration before installation. Clean the hub mounting surface thoroughly to help prevent runout-related issues, and inspect pads, calipers, and hardware condition at the same time. After installation, follow a proper brake bedding procedure to promote even pad transfer on the new rotor surface.

Quality Assurance

Centric positions the C-TEK Standard Disc Brake Rotors line as a value-focused replacement option with dependable performance and service life for a wide range of applications. Part number 121.62025 follows that standard with application-specific sizing for the rear brake system on the Pontiac Firebird.