Centric 320.34080H Disc Brake Rotor - Rear

Overview of Centric GCX Elemental Protection Disc Brake Rotors

The Centric GCX Elemental Protection Disc Brake Rotor (part number 320.34080H) is engineered for BMW models including the 330i, 330xi, 335d, 335i, 335is, 335i xDrive, 335xi, and X1. Designed with a full coating and high carbon content, this rotor offers reliable braking performance and corrosion resistance.

• Full coating on disc and hat for enhanced corrosion protection
• High carbon content for improved heat dissipation and durability
• Vented rotor design with straight vanes for efficient cooling
• Nominal outside diameter of 336 mm (13.228 inches)
• Nominal thickness of 21.9 mm (0.862 inches) with discard thickness at 20.4 mm (0.803 inches)
• Coated hat finish to resist rust and wear
• 5 lug holes with a bolt circle diameter of 120 mm (4.724 inches)
• Center hole diameter of 75 mm (2.953 inches)
• Solid and vented rotor type optimized for BMW braking systems

Product Line Details: Centric GCX Elemental Protection

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line focuses on providing rotors with a complete protective coating to reduce corrosion and extend service life. 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 designed to meet or exceed OEM specifications for BMW vehicles, ensuring compatibility and reliable operation.

Technical Description and Specifications

This disc brake rotor features a fully coated disc surface and coated hat to protect against rust and environmental damage. The vented design with straight vanes improves airflow, helping to dissipate heat generated during braking. The rotor measures 336 mm in outside diameter and has a nominal thickness of 21.9 mm, with a discard thickness of 20.4 mm, indicating when replacement is necessary. The overall height is 67.2 mm, and it includes five lug holes with a 120 mm bolt circle diameter, matching BMW factory specifications. The smooth surface finish supports consistent pad contact and braking efficiency.

Compatible Vehicles and Applications

• BMW 330i and 330xi models
• BMW 335d, 335i, 335is, 335i xDrive, and 335xi
• BMW X1 series
• Replacement for worn or damaged rotors to restore braking performance
• Ideal for vehicles experiencing rotor corrosion, uneven wear, or brake noise

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surfaces to prevent rotor runout
• Torque lug nuts to manufacturer specifications for proper fitment
• Check compatibility with existing brake pads and calipers
• Perform a bed-in procedure after installation for optimal braking

Quality Assurance and Warranty

Centric rotors are manufactured to meet OEM standards for fit, form, and function. The full coating process provides corrosion resistance to extend rotor life. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Always consult product documentation or manufacturer resources for warranty terms.