Centric 320.34018H Disc Brake Rotor - Front

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 select BMW models. Designed with a fully coated disc finish and vented rotor construction, these rotors provide durability and consistent heat dissipation.

• Part Number: 320.34018H
• Fully coated disc and hat finish for corrosion resistance
• High carbon content for improved wear and thermal stability
• Vented rotor design with straight vane style for efficient cooling
• Compatible with BMW 318i, 318is, 325e, 325es, 325i, 325is, and 325iX models
• Nominal thickness: 0.862 inches (21.9 mm), discard thickness: 0.803 inches (20.4 mm)
• Outside diameter: 10.236 inches (260 mm)
• Floating disc mounting with 4 lug holes (0.591 inch diameter)

Product Line Details

The Centric GCX Elemental Protection Disc Brake Rotors - Full Coating, High Carbon Content line focuses on enhanced rotor longevity and corrosion resistance. The full coating on both the disc and hat surfaces helps protect against rust and environmental damage, while the high carbon content improves rotor strength and heat management. This product line is engineered to meet or exceed OEM specifications for select BMW vehicles, ensuring consistent braking performance and durability.

Technical Specifications and Features

This disc brake rotor features a smooth surface type and a vented design with straight vanes to optimize airflow and heat dissipation during braking. The rotor’s overall height measures 1.386 inches (35.2 mm), and it includes a center hole diameter of 2.598 inches (66 mm) with a mounting bolt hole circle diameter of 3.937 inches (100 mm). The rotor weighs approximately 11.27 lbs (5.12 kgs), balancing strength and weight for effective braking response. Note that this rotor does not include an ABS tone ring or bearings.

Compatible Vehicles and Applications

• Designed specifically for BMW 318i and 318is models
• Compatible with BMW 325e, 325es, 325i, 325is, and 325iX
• Ideal for replacing worn or damaged rotors on these vehicles
• Suitable for drivers seeking rotors with corrosion protection and improved heat management

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness (0.803 inches) before installation
• Use proper torque specifications for the 4 lug bolts (0.591 inch diameter)
• Check compatibility with existing brake pads and calipers on BMW 3 Series models
• Clean mounting surfaces and inspect hub for damage prior to installation
• Professional installation is recommended to maintain braking system integrity

Quality Assurance and Warranty

Centric rotors are manufactured to meet OEM standards for fit, form, and function. The full coating process enhances corrosion resistance, extending rotor service life. While specific warranty details are not provided here, Centric typically offers coverage against defects in materials and workmanship. Refer to Centric’s official documentation for complete warranty information.