Beck Arnley 083-3749 Disc Brake Rotor - Rear

Reliable Disc Brake Rotor for Infiniti QX50 and QX55

The Beck Arnley 083-3749 disc brake rotor is engineered to meet the braking demands of Infiniti QX50 and QX55 models. Designed with precision, this vented rotor ensures effective heat dissipation and consistent braking performance under various driving conditions.

• Vented design for improved heat dissipation
• 5-lug bolt pattern with 114 mm spacing
• Rotor outer diameter of 308 mm and thickness of 16 mm
• Center hole diameter of 68 mm for accurate fitment
• Minimum rotor thickness of 14 mm to maintain safety standards
• Compatible with lug stud hole inner diameter of 12.8 mm
• Rotor height of 47 mm and hub outer diameter of 170 mm

Technical Specifications and Design Features

This Beck Arnley disc brake rotor (part number 083-3749) features a vented construction that enhances airflow between the rotor surfaces, reducing the risk of brake fade during extended use. The rotor is designed with a 5-lug bolt pattern measuring 114 mm, matching the factory specifications for Infiniti QX50 and QX55 vehicles. With an outer diameter of 308 mm and a surface thickness of 16 mm, this rotor provides a solid braking surface while maintaining structural integrity. The rotor center hole diameter of 68 mm ensures proper alignment on the hub, while the lug stud hole inner diameter of 12.8 mm accommodates the vehicle’s lug nuts securely. The rotor height of 47 mm and hub outer diameter of 170 mm are engineered for precise fitment and optimal performance.

Compatible Infiniti Models and Applications

This disc brake rotor is specifically compatible with the following Infiniti models:

• Infiniti QX50
• Infiniti QX55

It is designed to replace worn or damaged rotors, restoring braking efficiency and safety. The vented design helps address issues such as brake fade, uneven rotor wear, and overheating during heavy braking.

Common Issues Addressed by This Rotor

• Brake fade caused by excessive heat buildup
• Warped or uneven rotor surfaces leading to vibration
• Reduced braking performance due to worn rotor thickness
• Noise and pulsation during braking
• Corrosion or surface damage affecting rotor integrity

Installation Notes and Tips

When installing the Beck Arnley 083-3749 rotor, ensure the vehicle is securely lifted and the wheel assembly is removed carefully. Clean the hub surface to remove rust or debris before mounting the rotor to ensure proper fitment. Verify the rotor thickness meets or exceeds the minimum thickness specification of 14 mm before installation. Use the correct torque specifications for lug nuts to avoid rotor warping. It is recommended to replace brake pads simultaneously to maintain optimal braking performance.

Quality Assurance and Warranty

Beck Arnley disc brake rotors are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. This rotor undergoes rigorous quality control testing to maintain consistent dimensions and material integrity. Please refer to Beck Arnley’s warranty policy for specific coverage details related to the 083-3749 part number.