Raybestos 782636 Disc Brake Rotor - Rear

Overview of Raybestos 782636 Disc Brake Rotor

The Raybestos Specialty - Truck; Coated Rotor 782636 is engineered for heavy-duty braking performance on Chevrolet and GMC trucks. Designed specifically for the Sierra 3500 HD and Silverado 3500 HD models, this vented disc brake rotor offers reliable stopping power and durability under demanding conditions.

• Compatible with Chevrolet Sierra 3500 HD and GMC Silverado 3500 HD
• Vented rotor design for improved heat dissipation
• Coated surface to resist corrosion and extend rotor life
• Nominal thickness of 1.575 inches (40.000 mm) with discard thickness at 1.516 inches (38.500 mm)
• Outside diameter measures 13.976 inches (355.000 mm)
• Eight mounting bolt holes with a 7.087-inch (180.000 mm) bolt circle diameter
• Smooth surface type for consistent brake pad contact

Detailed Product Specifications

This Raybestos disc brake rotor features a vented design that enhances cooling efficiency, reducing the risk of brake fade during heavy use. The rotor's nominal thickness is 1.575 inches (40.000 mm), with a discard thickness of 1.516 inches (38.500 mm), ensuring precise wear limits for safe operation. The outside diameter of 13.976 inches (355.000 mm) and inside diameter of 10.039 inches (255.000 mm) are engineered to match the braking system requirements of the Chevrolet Sierra 3500 HD and GMC Silverado 3500 HD. The rotor includes eight mounting bolt holes, each 0.640 inches (16.250 mm) in diameter, arranged on a 7.087-inch (180.000 mm) bolt circle diameter, providing secure and accurate fitment.

About the Specialty - Truck; Coated Rotor Product Line

The Raybestos Specialty - Truck; Coated Rotor line is designed to meet the rigorous demands of heavy-duty truck applications. These rotors feature a protective coating that helps prevent rust and corrosion, extending the service life of the rotor in harsh environments. The vented rotor design improves heat dissipation, which is critical for maintaining braking performance under load. This product line is tailored for truck models requiring robust and reliable braking components, such as the Chevrolet Sierra 3500 HD and GMC Silverado 3500 HD.

Applications and Problem Solving

• Replacement for worn or warped rotors on Chevrolet Sierra 3500 HD and GMC Silverado 3500 HD
• Addresses brake fade caused by overheating during heavy towing or hauling
• Prevents corrosion-related rotor damage in environments exposed to moisture and road salt
• Restores smooth braking performance by eliminating rotor surface irregularities
• Ensures proper rotor thickness for safe braking operation

Installation Notes and Tips

• Verify rotor thickness before installation; replace if below discard thickness of 1.516 inches (38.500 mm)
• Ensure mounting surfaces and bolt holes are clean and free of debris for proper fitment
• Use a torque wrench to tighten mounting bolts to manufacturer specifications
• Inspect brake pads for wear and replace if necessary to maintain optimal braking performance
• Perform a brake system test after installation to confirm proper operation

Quality Assurance and Warranty

Raybestos disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The Specialty - Truck; Coated Rotor line undergoes rigorous quality control to ensure durability and consistent performance. While specific warranty details for part number 782636 should be confirmed with the supplier, Raybestos typically offers limited warranties covering defects in materials and workmanship.