Raybestos 982857 Disc Brake Rotor - Front

Overview of Raybestos Specialty - Truck Disc Brake Rotor 982857

The Raybestos Specialty - Truck Disc Brake Rotor 982857 is engineered for reliable braking performance on select Lexus and Toyota trucks and SUVs. Designed with durable cast iron and a vented composite construction, this rotor supports consistent heat dissipation and long service life for vehicles like the Lexus GX550, LX600, LX700h, Toyota Sequoia, and Tundra.

• Material: Cast iron for strength and durability
• Construction: Composite vented rotor for improved cooling
• Nominal thickness: 1.26 inches (32 mm)
• Discard thickness: 1.142 inches (29 mm)
• Outside diameter: 13.937 inches (354 mm)
• Inside diameter: 9.709 inches (246.6 mm)
• Overall height: 3.283 inches (83.4 mm)
• Mounting bolt holes: 6 with 0.654 inch (16.6 mm) diameter
• Non-directional brake surface, conventional rotor type

Raybestos Specialty - Truck Product Line Details

The Raybestos Specialty - Truck line focuses on components tailored for heavy-duty and truck applications, emphasizing durability and performance under demanding conditions. This disc brake rotor 982857 is part of that line, offering a composite vented design that helps maintain optimal braking efficiency and heat management for larger vehicles such as the Lexus GX550 and Toyota Tundra.

Technical Description and Specifications

This disc brake rotor is constructed from cast iron, providing a robust and wear-resistant braking surface. The vented composite design enhances airflow to reduce heat buildup during braking, which helps prevent warping and extends rotor life. With a nominal thickness of 1.26 inches and a discard thickness of 1.142 inches, this rotor meets precise dimensional standards for safe replacement. The rotor features six mounting bolt holes arranged on a 5.5 inch (139.7 mm) bolt circle diameter, compatible with the specified Lexus and Toyota models. The non-directional brake surface allows for flexible installation without concern for rotor orientation.

Compatible Vehicles and Common Applications

• Lexus GX550 brake rotor replacement
• Lexus LX600 and LX700h disc brake maintenance
• Toyota Sequoia front or rear rotor upgrade
• Toyota Tundra brake system repair
• Addressing rotor wear, vibration, or noise issues

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it is above the discard thickness of 1.142 inches. Clean the mounting surface and check for any debris or corrosion that could affect rotor seating. Use proper torque specifications for the six mounting bolts to avoid rotor distortion. Since this rotor does not include an ABS tone ring, verify compatibility with your vehicle’s ABS system. This rotor is designed as a conventional, non-directional type, so it can be installed on either side without directional concerns.

Quality Assurance and Warranty

Raybestos Specialty - Truck rotors are manufactured to meet OEM standards for fit and function. The cast iron material and composite vented construction provide consistent braking performance and durability. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed quality assurance to support reliable operation on Lexus and Toyota trucks and SUVs.