Perfect Stop 661383 Disc Brake Rotor - Rear

Overview of Perfect Stop Gray Armor-Plate Premium Rotor

The Perfect Stop Gray Armor-Plate, Premium disc brake rotor (part number 661383) is designed specifically for Ford Focus models. Engineered to meet precise specifications, this solid rotor offers reliable braking performance with a smooth surface finish.

• Compatible with Ford Focus vehicles
• Part Number: 661383
• Solid disc brake rotor with smooth surface
• Outside diameter: 252.8 mm (9.953 inches)
• Nominal thickness: 10.0 mm (0.394 inches)
• Discard thickness: 9.0 mm (0.354 inches)
• Overall height: 33.2 mm (1.307 inches)
• Mounting bolt hole quantity: 4
• Mounting bolt hole circle diameter: 108.0 mm (4.252 inches)
• Center hole diameter: 63.7 mm (2.508 inches)
• ABS tone ring not included

Product Line Details: Gray Armor-Plate, Premium

The Gray Armor-Plate, Premium line from Perfect Stop focuses on delivering durable and consistent braking components. This product line features rotors with a smooth surface finish and solid construction, designed to provide dependable stopping power and long service life. The premium coating helps resist corrosion, maintaining rotor integrity over time.

Technical Specifications and Features

This disc brake rotor is a solid type, meaning it does not have venting channels, which suits certain Ford Focus brake systems requiring solid rotors. The rotor’s outside diameter measures 252.8 mm (9.953 inches), with a nominal thickness of 10.0 mm (0.394 inches) and a discard thickness of 9.0 mm (0.354 inches), ensuring it meets OEM replacement standards. The overall height is 33.2 mm (1.307 inches), and it mounts using four bolt holes arranged on a 108.0 mm (4.252 inches) bolt circle diameter. The center hole diameter is 63.7 mm (2.508 inches), matching the hub specifications for proper fitment. This rotor does not include an ABS tone ring.

Applications and Problem Solving

• Replacement for worn or warped rotors on Ford Focus models
• Addresses brake pulsation caused by uneven rotor surfaces
• Restores proper rotor thickness to maintain braking efficiency
• Prevents brake noise related to rotor surface imperfections
• Helps maintain consistent brake pedal feel and stopping power

Installation Notes and Tips

Ensure the rotor is compatible with your specific Ford Focus model year and brake system before installation. Clean the hub surface thoroughly to prevent rotor runout. Torque mounting bolts to manufacturer specifications using a star pattern to ensure even seating. Since this rotor does not include an ABS tone ring, verify your vehicle’s ABS sensor compatibility. Always inspect brake pads and replace if necessary when installing new rotors.

Quality Assurance

Perfect Stop rotors undergo rigorous quality control to meet industry standards. The Gray Armor-Plate, Premium rotors are manufactured to precise dimensions and surface finish requirements to ensure reliable performance. Warranty information is available through the manufacturer and should be consulted for specific coverage details.