Raybestos 66748R Disc Brake Rotor - Front Left

Overview of Raybestos R-Line Disc Brake Rotor 66748R

The Raybestos R-Line Disc Brake Rotor 66748R is engineered for reliable braking performance on Ford Aerostar vehicles. Designed as a vented, conventional rotor, it offers precise fitment and consistent stopping power tailored to this specific make and model.

• Compatible with Ford Aerostar models
• Vented disc brake rotor design for improved heat dissipation
• Overall height: 2.564 inches (65.150 mm)
• Outside diameter: 10.290 inches (261.350 mm)
• Mounting bolt hole quantity: 5 with 0.546 inch (13.850 mm) diameter
• Center hole diameter: 2.540 inches (64.500 mm)
• Nominal thickness: 0.875 inches (22.200 mm)
• Discard thickness: 0.811 inches (20.600 mm)
• Mounting bolt hole circle diameter: 4.500 inches (114.300 mm)
• Stud/lug hole quantity: 5

Raybestos R-Line Product Line Details

The R-Line by Raybestos focuses on delivering dependable brake components that meet or exceed OEM specifications. This product line emphasizes durability and consistent performance, making it suitable for routine maintenance and replacement on vehicles like the Ford Aerostar. The 66748R rotor exemplifies the R-Line’s commitment to quality through its vented design and precise engineering.

Technical Description and Specifications

This disc brake rotor features a vented design that enhances heat dissipation during braking, reducing the risk of brake fade. The conventional rotor type is designed for direct replacement on Ford Aerostar models requiring a 5-bolt mounting pattern. With an outside diameter of 10.290 inches and an overall height of 2.564 inches, the rotor fits securely and maintains proper alignment. The nominal thickness of 0.875 inches ensures structural integrity, while the discard thickness of 0.811 inches indicates the minimum safe thickness before replacement is necessary. The mounting bolt hole circle diameter of 4.500 inches and center hole diameter of 2.540 inches provide precise fitment for the vehicle’s hub assembly.

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Aerostar vehicles
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves braking performance by restoring proper rotor thickness
• Reduces brake fade through vented rotor design
• Eliminates noise and vibration related to damaged rotors

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surfaces to prevent rotor misalignment
• Torque mounting bolts to manufacturer specifications
• Inspect brake pads and replace if worn to ensure optimal performance
• Check for proper rotor runout to avoid brake vibration

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. The 66748R rotor undergoes rigorous testing to comply with OEM fit and function requirements. Warranty coverage details should be confirmed with the product documentation or supplier, as they may vary.