Raybestos 56946 Disc Brake Rotor - Front or Rear

Raybestos Specialty - Truck Disc Brake Rotor Overview

The Raybestos Specialty - Truck disc brake rotor, part number 56946, is engineered specifically for the Hummer H1. Designed to meet the demands of heavy-duty truck applications, this vented rotor ensures reliable braking performance under various driving conditions.

• Compatible with Hummer H1 models
• Vented disc brake rotor for improved heat dissipation
• Overall diameter of 11.990 inches (304.55 mm)
• Nominal thickness of 1.020 inches (25.9 mm) with discard thickness at 0.972 inches (24.7 mm)
• Six mounting bolt holes with a 110 mm (4.331 inch) bolt circle diameter
• Center hole diameter of 3.548 inches (90.1 mm)
• Conventional rotor design suitable for drum-in-hat applications

Detailed Specifications and Features

This Raybestos disc brake rotor features a vented design that enhances cooling efficiency, reducing the risk of brake fade during extended use. The rotor's overall height measures 1.415 inches (35.95 mm), providing the necessary clearance and fitment for the Hummer H1 braking system. With six mounting bolt holes arranged on a 110 mm bolt circle diameter, installation aligns precisely with factory specifications. The nominal thickness of 1.020 inches (25.9 mm) ensures durability, while the discard thickness of 0.972 inches (24.7 mm) indicates the minimum safe thickness before replacement is required.

Specialty - Truck Product Line

The Raybestos Specialty - Truck line is tailored for heavy-duty and specialty truck applications, focusing on durability and performance under demanding conditions. This product line addresses the unique braking needs of trucks like the Hummer H1, providing components that maintain consistent braking power and heat management for extended service life.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Hummer H1 vehicles
• Improves braking performance by reducing heat buildup during heavy loads
• Addresses brake pulsation caused by uneven rotor thickness
• Restores proper rotor thickness to maintain safe braking distances
• Suitable for vehicles experiencing rotor cracking or surface damage

Installation Notes and Tips

• Verify rotor dimensions and bolt pattern compatibility with your Hummer H1 before installation
• Inspect brake pads and calipers for wear during rotor replacement
• Ensure mounting surfaces are clean and free of debris to prevent rotor misalignment
• Torque mounting bolts to manufacturer specifications to avoid rotor warping
• Check rotor thickness regularly to monitor discard limits and maintain safety

Quality Assurance and Warranty

Raybestos disc brake rotors are manufactured to meet strict quality standards, ensuring reliable performance and durability. The Specialty - Truck line undergoes rigorous testing to comply with OEM specifications. While specific warranty details for part number 56946 should be confirmed with the supplier, Raybestos typically offers coverage against manufacturing defects to support long-term use.