Beck Arnley 083-2948 Disc Brake Rotor - Front

Overview of Beck Arnley 083-2948 Disc Brake Rotor

The Beck Arnley 083-2948 disc brake rotor is engineered for reliable braking performance on select BMW models. Designed as a vented rotor with a 5-lug configuration, it provides effective heat dissipation and consistent stopping power for vehicles like the BMW 330Ci, 330i, 330xi, and Z4.

• Vented disc brake rotor for improved cooling
• 5-lug bolt pattern with 120 mm spacing
• Rotor outer diameter of 325 mm and thickness of 25 mm
• Center hole diameter of 79 mm for precise fitment
• Compatible with BMW 330Ci, 330i, 330xi, and Z4 models

Technical Specifications and Design Features

This vented rotor features a 5-lug bolt pattern with a 120 mm bolt circle diameter, matching the factory specifications for the listed BMW models. The rotor's outer diameter measures 325 mm, with a surface thickness of 25 mm and a minimum thickness of 23.4 mm, ensuring durability and safety within OEM tolerances. The rotor hub outer diameter is 185 mm, and the rotor height is 52.6 mm, designed to fit precisely on the vehicle's hub assembly. The lug stud hole inner diameter is 14.5 mm, accommodating standard lug nuts. Being vented, this rotor allows air to flow between the rotor faces, reducing heat buildup during braking and helping to maintain consistent brake performance under demanding conditions.

Compatible BMW Models and Applications

The Beck Arnley 083-2948 disc brake rotor is compatible with the following BMW vehicles:

• BMW 330Ci
• BMW 330i
• BMW 330xi
• BMW Z4

This rotor is designed to meet the exact specifications required for these models, ensuring proper fit and function without modification.

Common Issues Addressed by This Rotor

• Brake rotor warping or uneven wear causing vibration
• Reduced braking efficiency due to overheating
• Excessive brake noise or pulsation
• Corrosion or surface damage affecting rotor integrity
• Maintaining OEM specifications for safe braking performance

Installation Notes and Tips

When installing the Beck Arnley 083-2948 rotor, ensure the hub surface is clean and free of rust or debris to promote proper rotor seating. Verify the rotor thickness meets or exceeds the minimum thickness specification of 23.4 mm before installation. Use the correct torque specifications for the 5-lug, 120 mm bolt pattern to avoid uneven rotor stress. It is recommended to replace brake pads simultaneously to ensure optimal braking performance and rotor longevity.

Quality Assurance and Warranty

Beck Arnley rotors are manufactured to meet or exceed OEM standards for fit, form, and function. Each rotor undergoes rigorous quality control to ensure consistent performance and durability. While specific warranty details are not provided here, Beck Arnley products typically come with a limited warranty against defects in materials and workmanship. Consult the product documentation or manufacturer for exact warranty terms.