PowerStop AR85222EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR85222EVC) is engineered for reliable braking performance and durability. Designed as a vented disc brake rotor with a rust-resistant coating, it offers consistent stopping power for compatible rear axle applications.

• Full cast construction for strength and durability
• Vented rotor design to improve heat dissipation
• Geomet rust-resistant coating to prevent corrosion
• Nominal thickness of 1.54 inches (39.10 mm) with discard thickness at 1.48 inches (37.50 mm)
• Overall height of 4.91 inches (124.60 mm) and outside diameter of 15.76 inches (400.20 mm)
• Mounting bolt hole circle diameter of 6.43 inches (163.20 mm) with 10 stud/lug holes
• Smooth surface type for consistent pad contact
• Standard replacement grade rotor

Product Line Details: Power Stop - Rear Genuine Geomet Coated Rotor

This rotor is part of the Power Stop - Rear Genuine Geomet Coated Rotor line, which focuses on providing OEM-quality replacement rotors with enhanced corrosion resistance. The Geomet coating applied to these rotors helps extend service life by protecting against rust and environmental damage, making them suitable for vehicles operating in varied climates. This product line is designed to meet or exceed factory specifications for rear disc brake rotors.

Technical Description and Specifications

The AR85222EVC rotor features a full cast construction that ensures structural integrity under braking stress. Its vented design allows air to flow between the rotor surfaces, reducing heat buildup and minimizing brake fade during extended use. The smooth surface finish promotes even brake pad wear and consistent braking performance. With a nominal thickness of 1.54 inches (39.10 mm) and a discard thickness of 1.48 inches (37.50 mm), this rotor provides a clear service life indicator for maintenance scheduling. The rotor’s overall height measures 4.91 inches (124.60 mm), and it has an outside diameter of 15.76 inches (400.20 mm), making it compatible with specific rear brake assemblies requiring these dimensions. The mounting bolt hole circle diameter is 6.43 inches (163.20 mm), accommodating 10 stud or lug holes for secure installation.

Compatible Vehicles and Applications

This Power Stop rear rotor is designed for use on select vehicle makes and models requiring a rear disc brake rotor with these exact specifications. It is commonly compatible with various trucks and SUVs that utilize a 10-lug rear axle setup. When searching for a replacement rotor, ensure your vehicle’s rear brake system matches the dimensions and mounting pattern of the AR85222EVC part number.

• Replaces worn or warped rear disc brake rotors
• Addresses brake noise and vibration issues
• Improves braking consistency and pedal feel
• Prevents rust-related rotor surface degradation
• Restores proper rotor thickness for safe braking

Installation Notes and Tips

Before installation, verify that the rotor dimensions and mounting bolt pattern match your vehicle’s rear brake assembly. Clean the hub surface to ensure proper rotor seating and avoid runout. Use appropriate torque specifications for lug nuts or bolts to secure the rotor. 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 ensure optimal braking performance.

Quality Assurance and Warranty

Power Stop manufactures this rotor to meet standard replacement grade specifications, ensuring reliable performance and durability. The Geomet coating provides additional protection against corrosion, extending the rotor’s service life. While specific warranty details are not provided, Power Stop products typically adhere to industry quality standards for aftermarket brake components.