Raybestos 8545 Disc Brake Rotor - Rear

Overview of Raybestos Specialty - Truck Disc Brake Rotor 8545

The Raybestos Specialty - Truck Disc Brake Rotor part number 8545 is engineered for heavy-duty truck applications requiring reliable braking performance. Designed with vented construction and precise dimensions, this rotor supports consistent heat dissipation and durability under demanding conditions.

• Vented disc brake rotor with smooth surface finish
• Overall height: 7.606 inches (193.2 mm)
• Outside diameter: 15.377 inches (390.6 mm)
• Inside diameter: 10.070 inches (255.8 mm)
• Mounting bolt hole quantity: 10 with 0.934 inch (23.7 mm) diameter
• Mounting bolt hole circle diameter: 11.250 inches (285.75 mm)
• Nominal thickness: 1.542 inches (39.15 mm)
• Discard thickness: 1.420 inches (36.05 mm)
• Conventional rotor type suitable for drum-in-hat setups

Detailed Product Description

The Raybestos Specialty - Truck rotor 8545 features a vented design that enhances cooling efficiency during braking, reducing the risk of brake fade in heavy truck applications. The smooth surface type ensures consistent pad contact and braking performance. With a nominal thickness of 1.542 inches and a discard thickness of 1.420 inches, this rotor maintains structural integrity and safety throughout its service life. The rotor’s 10 mounting bolt holes with a 0.934 inch diameter and a bolt circle diameter of 11.250 inches provide secure fitment on compatible truck models. Its overall height of 7.606 inches and outside diameter of 15.377 inches make it suitable for specific heavy-duty truck brake systems requiring conventional drum-in-hat rotors.

Raybestos Specialty - Truck Product Line

The Specialty - Truck line by Raybestos is designed to meet the rigorous demands of commercial and heavy-duty truck braking systems. This product line focuses on durability and performance under high load and frequent stop conditions, making it appropriate for fleet vehicles and trucks requiring dependable brake components. Part number 8545 exemplifies this line’s commitment to quality and fitment precision.

Applications and Problem Solving

• Replacement for worn or warped rotors causing brake pulsation
• Addressing rotor thickness below manufacturer discard limits
• Improving heat dissipation to reduce brake fade in heavy trucks
• Ensuring proper fitment for trucks requiring 10-bolt mounting rotors
• Maintaining braking performance in conventional drum-in-hat rotor setups

Installation Notes and Tips

• Verify rotor dimensions and mounting bolt pattern match vehicle specifications
• Inspect hub and mounting surfaces for cleanliness before installation
• Measure rotor thickness to ensure it meets nominal specifications
• Torque mounting bolts to manufacturer-recommended values
• Check for proper rotor runout after installation to prevent uneven wear

Quality Assurance

Raybestos rotors undergo rigorous quality control to meet industry standards for durability and performance. The Specialty - Truck line is manufactured to precise tolerances to ensure consistent fit and function. While specific warranty details for part number 8545 are not provided, Raybestos products typically conform to OEM quality requirements and are backed by the brand’s commitment to reliability.