Perfect Stop 662664 Disc Brake Rotor - Front

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

The Perfect Stop Gray Armor-Plate, Premium disc brake rotor (part number 662664) is engineered for reliable braking performance on Dodge Ram 1500 trucks. Designed with vented construction and precise dimensions, this rotor supports consistent heat dissipation and durability under demanding driving conditions.

• Compatible with Dodge Ram 1500 models
• Vented disc brake rotor design for improved cooling
• Outside diameter of 12.118 inches (307.8 mm)
• Nominal thickness of 1.181 inches (30.0 mm) with discard thickness at 1.118 inches (28.4 mm)
• Overall height measures 2.886 inches (73.3 mm)
• Five mounting bolt holes with a 5.5 inch (139.7 mm) bolt circle diameter
• Smooth surface type for consistent pad contact
• Center hole diameter of 3.094 inches (78.6 mm)
• ABS tone ring not included

Details on the Gray Armor-Plate, Premium Product Line

The Gray Armor-Plate, Premium line from Perfect Stop focuses on delivering rotors with enhanced surface protection and structural integrity. This product line features rotors designed to resist corrosion and wear, maintaining braking efficiency over time. The 662664 rotor benefits from this line’s emphasis on durability and consistent performance, making it suitable for the braking demands of Dodge Ram 1500 vehicles.

Technical Specifications and Features

This disc brake rotor is vented to allow better heat dissipation during braking, reducing the risk of brake fade. The nominal thickness of 1.181 inches (30.0 mm) ensures a robust braking surface, while the discard thickness of 1.118 inches (28.4 mm) indicates the minimum safe thickness before replacement is necessary. The rotor’s outside diameter of 12.118 inches (307.8 mm) and overall height of 2.886 inches (73.3 mm) are designed to match the factory specifications for Dodge Ram 1500 models, ensuring proper fit and function. The smooth surface type promotes even pad wear and consistent braking feel. The rotor includes five mounting bolt holes arranged on a 5.5 inch (139.7 mm) bolt circle diameter, with a center hole diameter of 3.094 inches (78.6 mm).

Common Applications and Problem Solving

• Replacement for worn or warped rotors on Dodge Ram 1500
• Addresses brake pulsation caused by uneven rotor surfaces
• Improves heat management to reduce brake fade during heavy use
• Restores braking performance affected by rotor thickness below discard limits
• Prevents corrosion-related rotor damage with Gray Armor-Plate surface protection

Installation Notes and Tips

Ensure the rotor thickness is measured before installation to confirm it meets or exceeds the nominal thickness of 1.181 inches (30.0 mm). Clean the rotor surface to remove any protective coatings or debris before mounting. Verify the five mounting bolt holes align correctly with the vehicle’s hub using the 5.5 inch (139.7 mm) bolt circle diameter. Since this rotor does not include an ABS tone ring, confirm compatibility with your vehicle’s ABS system. Proper torque specifications should be followed when securing the rotor to avoid warping.

Quality Assurance and Warranty

Perfect Stop disc brake rotors undergo rigorous quality control to meet OEM standards for fit and function. The Gray Armor-Plate, Premium rotors are manufactured to provide consistent braking performance and durability. Warranty details are provided by Perfect Stop and should be reviewed at the time of purchase to understand coverage specifics.