Raybestos 581045R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 581045R

The Raybestos R-Line Disc Brake Rotor 581045R is engineered for reliable braking performance on Cadillac ATS models. Designed as a vented, drum-in-hat type rotor, it offers efficient heat dissipation and durability for consistent stopping power.

• Compatible with Cadillac ATS vehicles
• Part number 581045R for precise identification
• Vented disc brake rotor with smooth surface finish
• Drum-in-hat design integrating parking brake drum
• Five mounting bolt holes and lug holes for secure fitment
• Nominal thickness of 0.912 inches (23.150 mm) and discard thickness of 0.827 inches (21.000 mm)
• Outside diameter of 12.406 inches (315.100 mm) and inside diameter of 9.318 inches (236.650 mm)
• Overall height of 1.894 inches (48.100 mm)
• Center hole diameter of 2.786 inches (70.750 mm)
• Mounting bolt hole circle diameter of 4.528 inches (115.000 mm)

Raybestos R-Line Product Line Details

The R-Line by Raybestos is a product line focused on delivering dependable brake components that meet or exceed OEM specifications. This line emphasizes quality materials and precise manufacturing processes to ensure consistent rotor performance and longevity. The 581045R rotor exemplifies these standards with its vented design and drum-in-hat configuration, tailored for Cadillac ATS applications.

Technical Specifications and Features

This disc brake rotor features a vented design that improves heat dissipation during braking, reducing the risk of brake fade. The smooth surface finish ensures optimal contact with brake pads, promoting even wear and effective stopping power. The drum-in-hat type rotor integrates a parking brake drum, combining two functions into one component for streamlined installation and maintenance.

Key dimensions include a nominal thickness of 0.912 inches (23.150 mm) and a discard thickness of 0.827 inches (21.000 mm), which define the rotor's usable lifespan. The outside diameter measures 12.406 inches (315.100 mm), while the inside diameter is 9.318 inches (236.650 mm). The rotor mounts securely with five bolt holes and lug holes, spaced on a 4.528-inch (115.000 mm) bolt circle diameter. The overall height of 1.894 inches (48.100 mm) and center hole diameter of 2.786 inches (70.750 mm) ensure proper fitment on compatible vehicles.

Applications and Problem Solving

• Replacement for worn or warped rotors on Cadillac ATS models
• Addresses brake noise and vibration issues caused by uneven rotor surfaces
• Improves braking performance by restoring proper rotor thickness and surface condition
• Resolves parking brake functionality problems with integrated drum-in-hat design
• Prevents brake fade through enhanced heat dissipation with vented rotor construction

Installation Notes and Tips

• Verify compatibility with Cadillac ATS before installation using part number 581045R
• Inspect mounting surfaces and hardware for wear or damage prior to installation
• Ensure rotor thickness meets minimum discard specifications to maintain safety
• Use proper torque settings on mounting bolts to avoid rotor warping
• Follow manufacturer guidelines for bedding in new rotors and brake pads

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet stringent quality standards, ensuring consistent performance and durability. While specific warranty details for part number 581045R should be confirmed with the supplier, Raybestos typically offers coverage against defects in materials and workmanship. This rotor is designed to provide reliable service life when installed and maintained according to recommended procedures.