Centric 121.45077 Disc Brake Rotor - Rear

Overview of Centric C-TEK Standard Disc Brake Rotor 121.45077

The Centric C-TEK Standard Disc Brake Rotor 121.45077 is engineered for reliable braking performance on Mazda CX-7 vehicles. Designed as a vented, floating rotor, it offers consistent heat dissipation and durability for everyday driving conditions.

• Compatible with Mazda CX-7 models
• Part number: 121.45077
• Vented disc brake rotor with smooth surface
• Overall diameter: 11.878 inches (301.7 mm)
• Nominal thickness: 0.709 inches (18.0 mm)
• Discard thickness: 0.630 inches (16.0 mm)
• Overall height: 2.236 inches (56.8 mm)
• Floating disc mounting with 5 lug holes (0.512 inch diameter)
• Straight vane style for effective cooling

Detailed Product Description

This Centric C-TEK Standard Disc Brake Rotor 121.45077 is specifically designed for the Mazda CX-7, ensuring precise fitment and optimal braking performance. The rotor features a vented design with straight vanes that promote efficient heat dissipation, reducing the risk of brake fade during extended use. Its smooth surface type supports consistent pad contact and braking response. The rotor’s nominal thickness of 0.709 inches (18.0 mm) and discard thickness of 0.630 inches (16.0 mm) provide clear service limits for maintenance. With an overall diameter of 11.878 inches (301.7 mm) and a height of 2.236 inches (56.8 mm), this rotor fits the specified mounting bolt pattern of 5 lug holes spaced on a 4.5 inch (114.3 mm) bolt circle diameter. The floating disc mounting style allows for slight movement to accommodate thermal expansion and improve rotor longevity.

About the C-TEK Standard Disc Brake Rotors Line

The C-TEK Standard Disc Brake Rotors line by Centric offers rotors designed to meet or exceed OEM specifications for fit, form, and function. This product line focuses on providing reliable, direct replacement rotors with standard smooth surfaces and vented designs to maintain effective braking performance under normal driving conditions. The 121.45077 rotor exemplifies this approach by delivering consistent quality and durability for Mazda CX-7 vehicles.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Mazda CX-7
• Addresses brake pulsation and vibration issues
• Restores braking efficiency and pedal feel
• Helps reduce brake fade caused by overheating
• Suitable for routine maintenance and rotor resurfacing replacement

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.630 inches) before installation
• Clean rotor surface to remove any protective coating before mounting
• Verify compatibility with Mazda CX-7 lug pattern: 5 lug holes, 0.512 inch diameter
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Check for ABS tone ring compatibility; this rotor does not include an ABS tone ring

Quality Assurance and Warranty

Centric C-TEK Standard Disc Brake Rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details for part number 121.45077 should be confirmed with the supplier, Centric typically offers limited warranties covering defects in materials and workmanship. This rotor is produced without bearings and ABS tone rings, matching OEM specifications for the Mazda CX-7.