PowerStop AR84104EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR84104EVC) is engineered for reliable braking performance on select GM trucks and SUVs. Designed with a rust-resistant Geomet coating and vented construction, this rotor supports consistent heat dissipation and durability for vehicles like the Chevrolet Silverado 1500 and GMC Sierra 1500.

• Vented disc brake rotor for improved cooling
• Rust resistant Geomet coating to prevent corrosion
• Nominal thickness of 0.79 inches (20.10 mm) for durability
• Discard thickness at 0.71 inches (18.00 mm) to indicate replacement threshold
• Overall height of 2.10 inches (52.90 mm) and outside diameter of 13.60 inches (345.20 mm)
• Mounting bolt hole circle diameter of 5.50 inches (139.70 mm) with 6 lug holes

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 rear axle applications on heavy-duty GM vehicles.

Technical Description and Specifications

The AR84104EVC rotor features a vented design that promotes efficient heat dissipation during braking, reducing the risk of brake fade under demanding conditions. Its nominal thickness of 0.79 inches (20.10 mm) ensures structural integrity, while the discard thickness of 0.71 inches (18.00 mm) serves as a critical wear limit for safe operation. The rotor measures 13.60 inches (345.20 mm) in outside diameter and has an overall height of 2.10 inches (52.90 mm). It mounts using a 6-lug pattern with a bolt hole circle diameter of 5.50 inches (139.70 mm), compatible with specific Cadillac, Chevrolet, and GMC models.

Compatible Vehicles and Applications

• Cadillac Escalade and Escalade ESV
• Chevrolet Silverado 1500 and Silverado 1500 LTD
• GMC Sierra 1500 and Sierra 1500 Limited
• Chevrolet Tahoe
• GMC Yukon and Yukon XL

This rotor is designed specifically for rear disc brake systems on these vehicles, addressing common issues such as rotor wear, corrosion, and heat-related brake performance degradation.

Installation Notes and Tips

• Ensure rotor thickness is above discard thickness before installation
• Clean mounting surfaces to prevent uneven rotor seating
• Check compatibility with vehicle lug pattern and bolt circle diameter
• Torque lug nuts to manufacturer specifications
• Inspect brake pads and calipers during rotor replacement

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM standards, with a focus on durability and corrosion resistance. The Geomet coating provides additional protection against rust, extending rotor life. Warranty details should be confirmed with the manufacturer or distributor, as they may vary by region and application.