Perfect Stop 661382 Disc Brake Rotor - Rear

Overview of Perfect Stop Gray Armor-Plate Premium Disc Brake Rotor

The Perfect Stop Gray Armor-Plate, Premium disc brake rotor (part number 661382) is engineered for reliable braking performance on select Saab and Saturn vehicles. Designed to meet precise specifications, this solid rotor offers consistent stopping power and durability for models including the Saab 9-3, 9-5, and Saturn LS series.

• Compatible with Saab 9-3, 9-5, 900 and Saturn L100, L200, L300, LS, LS1, LS2, LW1, LW2, LW200, LW300
• Solid disc brake rotor with smooth surface finish
• Outside diameter: 11.248 inches (285.7 mm)
• Nominal thickness: 0.394 inches (10.0 mm); discard thickness: 0.315 inches (8.0 mm)
• Overall height: 2.728 inches (69.3 mm)
• Mounting bolt hole quantity: 5 with 4.331 inches (110.0 mm) bolt circle diameter
• Center hole diameter: 2.579 inches (65.5 mm)
• ABS tone ring not included

Gray Armor-Plate, Premium Product Line Details

The Gray Armor-Plate, Premium line from Perfect Stop focuses on delivering rotors with enhanced surface protection and consistent thickness to ensure reliable braking performance. This product line emphasizes durability and precision machining, making it suitable for vehicles requiring exact fitment and dependable rotor dimensions, such as the Saab 9-3 and Saturn LS models.

Technical Specifications and Features

This disc brake rotor features a solid design with a smooth surface type, providing a stable braking surface for consistent pad contact. The rotor’s nominal thickness of 0.394 inches (10.0 mm) and discard thickness of 0.315 inches (8.0 mm) define the usable lifespan before replacement is necessary. The overall height of 2.728 inches (69.3 mm) and outside diameter of 11.248 inches (285.7 mm) ensure proper fitment on compatible vehicles. The rotor mounts with five bolt holes arranged on a 4.331-inch (110.0 mm) bolt circle diameter, and the center hole diameter measures 2.579 inches (65.5 mm). This rotor does not include an ABS tone ring, so it is intended for vehicles without ABS sensor requirements or where the tone ring is integrated elsewhere.

Applications and Problem Solving

• Replacement for worn or warped rotors on Saab 9-3, 9-5, 900 and Saturn LS series vehicles
• Addresses brake pulsation caused by uneven rotor thickness
• Restores braking efficiency lost due to rotor surface wear or scoring
• Prevents brake noise associated with damaged or uneven rotors
• Ensures proper rotor thickness for safe braking performance

Installation Notes and Tips

Ensure the rotor surface is clean and free of rust or debris before installation. Verify the rotor thickness is above the discard thickness of 0.315 inches (8.0 mm) to maintain safety standards. Use proper torque specifications for the five mounting bolts on the 4.331-inch (110.0 mm) bolt circle diameter. Since this rotor does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system. It is recommended to replace brake pads simultaneously to optimize braking performance.

Quality Assurance and Warranty

Perfect Stop disc brake rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The Gray Armor-Plate, Premium rotors undergo precision machining and quality control to ensure consistent thickness and surface finish. Warranty information is provided by the manufacturer and should be verified at the time of purchase.