Raybestos 56919PER Disc Brake Rotor - Rear

Raybestos Disc Brake Rotor for Cadillac, Chevrolet, and GMC

The Raybestos 56919PER disc brake rotor is engineered for reliable braking performance on select Cadillac, Chevrolet, and GMC trucks and SUVs. Designed specifically for models like the Escalade, Sierra 1500, Suburban 1500, and Yukon XL 1500, this rotor meets precise fitment and thickness specifications to maintain optimal braking efficiency.

• Part Number: 56919PER
• Brand Line: Specialty - Street Performance; S-Groove Technology
• Nominal Thickness: 1.190 inches (30.250 mm)
• Discard Thickness: 1.120 inches (28.450 mm)
• Mounting Bolt Hole Circle Diameter: 5.500 inches (139.700 mm)
• Drum-in-hat type rotor design

Specialty - Street Performance; S-Groove Technology Overview

This rotor is part of the Raybestos Specialty - Street Performance line featuring S-Groove Technology, which is designed to enhance brake pad contact and reduce noise and vibration. The drum-in-hat rotor configuration integrates the parking brake drum within the rotor, providing a compact and efficient braking solution for heavy-duty street performance applications on full-size trucks and SUVs.

Technical Details and Specifications

The 56919PER rotor has a nominal thickness of 1.190 inches (30.250 mm) ensuring durability and heat dissipation under demanding conditions. The discard thickness is set at 1.120 inches (28.450 mm), indicating the minimum safe thickness before replacement is necessary. The mounting bolt hole circle diameter measures 5.500 inches (139.700 mm), matching factory specifications for secure installation on compatible vehicles. The drum-in-hat design allows integration of the parking brake mechanism within the rotor, streamlining the braking system.

Applications and Problem Solving

• Replacement rotor for worn or warped brake rotors on Cadillac Escalade and Chevrolet Suburban 1500
• Restores braking performance on GMC Sierra 1500 and Yukon XL 1500 with drum-in-hat parking brake setup
• Addresses brake noise and vibration issues common in aging rotors
• Ensures proper rotor thickness for safe braking and heat management
• Compatible with vehicles requiring a 5.500 inch bolt circle diameter rotor

Installation Notes and Tips

When installing the Raybestos 56919PER rotor, verify the rotor thickness to ensure it meets or exceeds the discard thickness of 1.120 inches. Properly clean the mounting surface and torque the bolts to manufacturer specifications to avoid rotor runout. The drum-in-hat design requires attention to parking brake components during installation to ensure correct fit and function.

Quality Assurance and Warranty

Raybestos rotors are manufactured to meet or exceed OEM standards for fit, form, and function. The 56919PER rotor undergoes rigorous quality control to ensure consistent thickness and durability. While specific warranty details are not provided here, Raybestos products typically include coverage against defects in materials and workmanship. Consult product documentation for exact warranty terms.