Raybestos 580357R Disc Brake Rotor - Front

Overview of Raybestos R-Line Disc Brake Rotor 580357R

The Raybestos R-Line Disc Brake Rotor 580357R is engineered for reliable braking performance on Hummer H3 and H3T models. Designed as a vented, conventional rotor, it offers consistent heat dissipation and durability for demanding driving conditions.

• Compatible with Hummer H3 and H3T vehicles
• Vented disc brake rotor design for improved cooling
• Overall diameter of 12.402 inches (315.000 mm)
• Nominal thickness of 1.102 inches (28.000 mm) with discard thickness at 1.043 inches (26.500 mm)
• Six mounting bolt holes with a 5.5 inch (139.700 mm) bolt circle diameter
• Center hole diameter of 3.965 inches (100.700 mm)
• Overall height of 2.760 inches (70.100 mm)

Detailed Product Specifications

This Raybestos R-Line rotor (part number 580357R) is a vented, conventional disc brake rotor designed specifically for the Hummer H3 and H3T. The vented design enhances heat dissipation during braking, reducing the risk of brake fade under heavy use. The rotor measures 12.402 inches in outside diameter and has a nominal thickness of 1.102 inches, with a discard thickness of 1.043 inches, indicating when replacement is necessary. It features six mounting bolt holes arranged on a 5.5 inch bolt circle diameter, ensuring proper fitment and secure installation. The center hole diameter is 3.965 inches, and the overall height is 2.760 inches, matching OEM specifications for these vehicles.

About the Raybestos R-Line Product Line

The R-Line by Raybestos is a product line focused on delivering dependable, OEM-quality brake components. This line is designed to meet or exceed original equipment specifications, providing consistent performance and durability. The 580357R rotor is part of this line, offering a balance of quality and value for Hummer H3 and H3T owners requiring reliable disc brake rotors.

Common Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below discard limits to maintain braking safety
• Improving heat dissipation to reduce brake fade during heavy braking
• Resolving noise or vibration issues related to rotor surface irregularities
• Ensuring proper fitment for Hummer H3 and H3T brake systems

Installation Notes and Tips

When installing the Raybestos R-Line 580357R rotor, ensure the mounting surface is clean and free of rust or debris. Verify the rotor thickness before installation to confirm it meets nominal specifications. Use the correct torque specifications for the six mounting bolts to avoid rotor warping. It is recommended to replace brake pads simultaneously to ensure optimal braking performance and rotor longevity.

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details for part number 580357R should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship. This rotor is designed to provide reliable service life when installed and maintained according to manufacturer guidelines.