Centric 320.34046H Disc Brake Rotor - Rear

Overview of Centric GCX Elemental Protection Disc Brake Rotors

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content offer reliable braking performance for BMW 525i, 528i, 530i, and 540i models. Designed with a fully coated disc and hat finish, these rotors provide enhanced corrosion resistance and durability.

• Part Number: 320.34046H
• Compatible with BMW 525i, 528i, 530i, 540i
• Fully coated disc and hat for corrosion protection
• High carbon content for improved heat dissipation
• Vented rotor design with straight vanes
• Nominal thickness: 0.787 inches (20.000 mm)
• Discard thickness: 0.724 inches (18.400 mm)
• Outside diameter: 11.732 inches (298.000 mm)
• Overall height: 2.402 inches (61.000 mm)
• 5 lug holes with 0.575 inch (14.600 mm) diameter
• Center hole diameter: 2.953 inches (75.000 mm)

Product Line Details

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line focuses on providing rotors with a full protective coating to resist rust and corrosion. The high carbon content enhances rotor strength and heat management, which is critical for maintaining consistent braking performance under demanding conditions. This product line is engineered to meet or exceed OEM specifications, making it suitable for BMW vehicles requiring reliable and durable brake components.

Technical Description and Features

This disc brake rotor features a vented design with straight vanes that promote efficient heat dissipation during braking. The smooth surface finish ensures optimal contact with brake pads, reducing noise and vibration. Both the disc and hat are fully coated to protect against environmental elements, extending the rotor's service life. The rotor’s nominal thickness of 0.787 inches (20.000 mm) and discard thickness of 0.724 inches (18.400 mm) provide clear service limits for maintenance. The rotor mounts with five lug holes on a 120 mm bolt circle diameter, compatible with specified BMW models.

Applications and Problem Solving

• Replacement for worn or warped rotors on BMW 525i, 528i, 530i, and 540i
• Addresses rotor corrosion and rust issues due to full coating
• Improves braking consistency by reducing heat-related fade
• Eliminates noise and vibration caused by uneven rotor surfaces
• Suitable for vehicles experiencing rotor thickness below discard limits

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surfaces to prevent uneven rotor seating
• Torque lug nuts to manufacturer specifications for proper fitment
• Check compatibility with ABS tone ring as this rotor does not include one
• Inspect brake pads and replace if worn to optimize rotor performance

Quality Assurance and Warranty

Centric rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. The full coating process protects against corrosion, extending rotor life. While specific warranty details are not provided here, Centric typically offers limited warranties covering defects in materials and workmanship. Always refer to the product packaging or manufacturer documentation for exact warranty terms.