Raybestos 8554 Disc Brake Rotor - Rear

Raybestos Specialty Truck Coated Rotor Overview

The Raybestos Specialty - Truck; Coated Rotor part number 8554 is engineered for heavy-duty truck applications requiring reliable braking performance. This vented disc brake rotor features a coated surface to resist corrosion and maintain consistent braking under demanding conditions.

• Coated rotor surface for enhanced corrosion resistance
• Vented design improves heat dissipation during braking
• Nominal thickness of 1.535 inches (39.000 mm) with discard thickness at 1.415 inches (35.950 mm)
• Overall height of 7.260 inches (184.400 mm) and outside diameter of 15.354 inches (390.000 mm)
• 10 mounting bolt holes with a bolt circle diameter of 11.250 inches (285.750 mm)
• Smooth surface type for consistent pad contact
• Conventional rotor type compatible with drum-in-hat setups

Detailed Product Specifications

This Raybestos disc brake rotor (part number 8554) is designed with a vented rotor construction to optimize heat dissipation, reducing the risk of brake fade during extended use. The coated rotor surface helps prevent rust and corrosion, extending the rotor's service life. With a nominal thickness of 1.535 inches and a discard thickness of 1.415 inches, this rotor meets precise wear limits for safe operation. The rotor's outside diameter measures 15.354 inches, and it features 10 mounting bolt holes with a 11.250-inch bolt circle diameter, ensuring compatibility with specific heavy-duty truck models. The smooth surface type promotes even brake pad wear and consistent braking performance.

Specialty - Truck; Coated Rotor Product Line

The Raybestos Specialty - Truck; Coated Rotor line focuses on heavy-duty truck brake components designed to withstand rigorous operating conditions. This product line emphasizes corrosion resistance and thermal management through coated and vented rotor designs, making it suitable for commercial trucks and other large vehicles requiring dependable braking under load.

Applications and Problem Solving

• Replacement for worn or warped rotors on heavy-duty trucks
• Addresses brake fade caused by excessive heat buildup
• Prevents corrosion-related rotor damage in harsh environments
• Restores proper rotor thickness for safe braking performance
• Compatible with vehicles requiring 10-bolt mounting patterns and conventional drum-in-hat rotors

Installation Notes and Tips

Ensure the rotor surface is clean and free of debris before installation. Verify the mounting bolt hole pattern and rotor dimensions match the vehicle specifications. Measure rotor thickness to confirm it meets or exceeds the discard thickness of 1.415 inches. Properly torque mounting bolts to manufacturer specifications to avoid rotor warping.

Quality Assurance and Warranty

Raybestos rotors are manufactured to meet industry standards for durability and performance. The Specialty - Truck; Coated Rotor line undergoes rigorous quality control to ensure consistent thickness, flatness, and coating adhesion. Warranty coverage details should be confirmed with the product documentation or supplier.