Raybestos 66565R Disc Brake Rotor - Rear

Overview of Raybestos R-Line Disc Brake Rotor 66565R

The Raybestos R-Line Disc Brake Rotor 66565R is engineered for reliable braking performance on select Ford and Mercury vehicles. Designed as a vented, drum-in-hat type rotor, it offers effective heat dissipation and durability for models like the Ford Explorer and Mercury Mountaineer.

• Vented disc brake rotor with drum-in-hat design
• Overall height: 2.295 inches (58.3 mm)
• Outside diameter: 11.220 inches (285 mm)
• Nominal thickness: 0.475 inches (12.05 mm)
• Discard thickness: 0.433 inches (11.0 mm)
• Mounting bolt hole quantity: 5 with 114.3 mm bolt circle diameter
• Center hole diameter: 2.800 inches (71.1 mm)
• Compatible with Ford and Mercury models including Explorer, Explorer Sport, Explorer Sport Trac, Mountaineer, and Ranger

Detailed Specifications and Features

This Raybestos R-Line rotor (part number 66565R) features a vented design that improves heat dissipation during braking, reducing the risk of brake fade under heavy use. The drum-in-hat configuration integrates a parking brake drum within the rotor, providing a compact and efficient braking solution. With a nominal thickness of 0.475 inches and a discard thickness of 0.433 inches, this rotor maintains structural integrity while indicating clear service limits. The 5-bolt mounting pattern with a 114.3 mm bolt circle diameter ensures secure fitment on compatible vehicles.

R-Line Product Line Information

The Raybestos R-Line series focuses on delivering reliable, OE-quality brake components designed to meet or exceed factory specifications. This product line emphasizes durability and consistent performance, making it suitable for daily driving and moderate towing or hauling applications. The 66565R rotor exemplifies the R-Line commitment to quality with precise fitment and robust construction.

Applications and Problem Solving

• Replaces worn or warped rotors causing brake pulsation or noise
• Restores braking efficiency on Ford Explorer and Mercury Mountaineer models
• Addresses rotor thickness below discard limits to maintain safety
• Improves heat management to reduce brake fade during extended use
• Supports parking brake function with integrated drum-in-hat design

Installation Notes and Tips

• Verify rotor thickness before installation to ensure it meets minimum specifications
• Clean mounting surfaces to prevent rotor runout and vibration
• Torque mounting bolts to manufacturer specifications for secure fitment
• Inspect brake pads and hardware during rotor replacement for optimal performance
• Use proper tools to avoid damage to the vented rotor and drum-in-hat assembly

Quality Assurance and Warranty

Raybestos R-Line rotors are manufactured to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms related to part number 66565R.