Centric 120.45046 Disc Brake Rotor - Rear

Overview of Centric Premium Disc Brake Rotor 120.45046

The Centric Premium Disc Brake Rotor 120.45046 is engineered for reliable braking performance on Mazda vehicles, specifically the Mazda 929 and MPV models. Designed to meet OEM specifications, this vented disc brake rotor ensures consistent heat dissipation and smooth braking response.

• Compatible with Mazda 929 and Mazda MPV models
• Part number 120.45046 for precise identification
• Vented rotor design for improved cooling
• Coated hat finish to resist corrosion
• 5 bolt holes with 114.3 mm bolt circle diameter
• Nominal thickness of 18 mm and discard thickness of 16 mm
• Outside diameter of 285.7 mm (11.248 inches)
• Smooth surface type for consistent pad contact
• Overall height of 57.1 mm

Product Line Details: Centric Premium Disc Brake Rotors

The Centric Premium Disc Brake Rotors line focuses on delivering rotors that meet or exceed OEM standards for fit, form, and function. This product line emphasizes quality materials and precise manufacturing processes to provide rotors that maintain structural integrity and braking efficiency over time. The 120.45046 rotor benefits from this line’s attention to detail, including a coated hat finish to reduce corrosion and a vented design to enhance heat dissipation during braking.

Technical Specifications and Features

This disc brake rotor features a vented design, which allows air to flow between the rotor surfaces, reducing heat buildup and minimizing brake fade during extended use. The rotor has a nominal thickness of 18 mm and a discard thickness of 16 mm, indicating when replacement is necessary to maintain safe braking performance. The outside diameter measures 285.7 mm, ensuring compatibility with the specified Mazda models. The rotor includes 5 bolt holes arranged on a 114.3 mm bolt circle diameter, matching the factory mounting pattern. The coated hat finish provides corrosion resistance, extending the rotor’s service life. The smooth surface type ensures even contact with brake pads for consistent braking feel.

Applications and Problem Solving

• Replacement for worn or warped rotors on Mazda 929 and MPV
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves heat dissipation to reduce brake fade during heavy use
• Restores proper rotor thickness for safe braking performance
• Prevents corrosion-related rotor damage with coated hat finish

Installation Notes and Tips

When installing the Centric Premium Disc Brake Rotor 120.45046, ensure the rotor surface is clean and free of any contaminants before mounting. Verify the bolt hole pattern matches the vehicle’s hub (5 bolts on a 114.3 mm circle). It is recommended to replace brake pads simultaneously to ensure optimal braking performance. Check rotor thickness before installation to confirm it meets the nominal thickness of 18 mm and is above the discard thickness of 16 mm. Proper torque specifications should be followed when securing the rotor to avoid warping.

Quality Assurance and Warranty

Centric Premium Disc Brake Rotors are manufactured to meet strict quality standards, ensuring durability and reliable braking performance. While specific warranty details for part number 120.45046 are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Users should consult product documentation or the manufacturer for exact warranty terms.