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RAYBESTOS 56919 Specifications
Discard Thickness (IN)1.122
Discard Thickness (MM)28.500
Mounting Bolt Hole Quantity6
Nominal Thickness (IN)1.185
Nominal Thickness (MM)30.100
Outside Diameter (IN)13.000
Outside Diameter (MM)330.200
Overall Height (IN)3.760
Overall Height (MM)95.500
Rotor TypeDrum-in-Hat
Solid Or Vented Type RotorVented
Wheel Bolt Circle Diameter (IN)5.500
Wheel Bolt Circle Diameter (MM)139.700
Wheel Bolt Holes6
Specialty - Truck Disc
Raybestos Specialty Truck Rotors are the ultimate solution for noise-prone applications, including truck, medium duty and school bus applications. Vehicle-specific cooling vane configurations and application-specific iron combine to dampen noise and improve brake responsiveness. This ensures super smooth and ultra-quiet braking over a longer period of time.

Features & Benefits:
  • Enhanced Carbon Iron Material maximizes noise suppression
  • Higher thermal conductivity keeps brakes running cool, quiet, and vibration free
  • Cooling Vanes match OE specifications to ensure optimal cooling, reduced fade, and increased pad life
  • Either fully coated with a Grey Fusion 4.0 coating or a black fusion coated hat for rust protection
  • Meets the SAE standard for tensile strength, providing structural integrity and maximum service life
  • Turned finish minimizes noise and improves responsiveness for smoother stops
  • Lateral runout of 0.002 or less and a minimal thickness variation of less than 0.0004, ensuring less pedal pulsation, less brake noise, and extended pad life

Installation Tips
  • Always replace Brake Pads and inspect Calipers and Brake Hoses when installing new rotors
  • Suspend the caliper from the suspension using a Caliper Hanger to prevent damage to the brake hose
  • After removing the old rotor, clean the hub face with a Wire Brush to remove rust buildup and apply Copper Anti Seize to prevent future buildup. Rust or debris on the hub can cause rotor runout and lead to wheel vibration
  • Apply Brake Lube to caliper pins, clips, the edges of the brake pad mounting tabs, and the back side of the brake pads to ensure noise free braking. DO NOT apply lube to the friction side of the brake pads
  • Use a Caliper Piston Compressor to retract the caliper piston(s) and make room for the new, thicker brake pads
  • Open the master cylinder reservoir during piston compression to prevent pressure buildup. Keep an eye on the Brake Fluid level to ensure it does not overflow
  • After the job is complete, pump the brake pedal several times to push the caliper piston back up against the pads to ensure proper brake function

Warranty Information:
Limited Lifetime. Warranty covers defects in materials and workmanship. Normal/uneven wear is not covered