Raybestos 8578 Disc Brake Rotor - Front

Raybestos 8578 Disc Brake Rotor Overview

The Raybestos Specialty - Truck 8578 disc brake rotor is a vented, conventional rotor built for heavy-duty braking service. It features a coated hat finish and rust-resistant coating to help maintain appearance and support long-term corrosion resistance in demanding truck applications.

With a 16.929 in. outside diameter, 6.3 in. overall height, and smooth, non-directional brake surface, this rotor is built for consistent pad contact and straightforward service. It is a direct-fit style rotor for select truck brake applications, including Chevrolet Silverado and GMC Sierra fitments where this part number is specified.

Key Features

• Raybestos Specialty - Truck brake rotor for truck-focused applications
• Part number 8578 for catalog and cross-reference lookup
• Vented rotor design for heat management during braking
• Coated hat finish with rust-resistant coating
• Smooth, non-directional braking surface
• Conventional drum-in-hat style rotor construction
• Outside diameter: 16.929 in. (430 mm)
• Overall height: 6.3 in. (160 mm)
• Center hole diameter: 8.15 in. (207 mm)
• Mounting bolt hole circle diameter: 11.25 in. (285.75 mm)

Detailed Description

Raybestos 8578 is a vented disc brake rotor engineered for truck brake service where stable stopping performance and corrosion protection matter. The coated hat finish and rust-resistant coating help reduce surface corrosion on exposed areas, while the smooth, non-directional friction surface supports even pad contact. This rotor uses a conventional design with no ABS tone ring included.

This part cross-references Eastern Catalytic 41326 for the same application. For buyers searching brake rotor replacement for Chevrolet Silverado or GMC Sierra, part number 8578 is a useful reference when matching the correct rotor dimensions and brake configuration.

What This Rotor Helps Address

• Brake pulsation caused by worn or out-of-spec rotors
• Reduced braking consistency from heat-related rotor wear
• Surface corrosion on exposed rotor areas
• Noise or uneven pad contact from a damaged braking surface
• Service replacement needs for truck brake maintenance

Installation Notes and Tips

Verify rotor dimensions, hub fitment, and brake system specifications before installation. Confirm the 16.929 in. outside diameter, 8.15 in. center hole diameter, and 11.25 in. bolt circle match the vehicle application. Clean the rotor friction surfaces before service and inspect pads, calipers, and hub condition during replacement. Fits Chevrolet Silverado and GMC Sierra applications only where this exact rotor specification is listed.

Quality Assurance

Raybestos Specialty - Truck focuses on truck-oriented brake components with application-specific sizing and corrosion-resistant finishes. Part number 8578 is built to match the listed rotor dimensions and construction details for direct replacement use in the specified applications.