PowerStop AR8770EVC Disc Brake Rotor - Rear

Power Stop Rear Genuine Geomet Coated Rotor Overview

The Power Stop - Rear Genuine Geomet Coated Rotor (Part Number AR8770EVC) is engineered specifically for Hummer H3 and H3T models. Designed as a solid disc brake rotor, it features a rust-resistant Geomet coating to enhance durability and maintain performance under various driving conditions.

• Compatible with Hummer H3 and H3T rear brake systems
• Solid disc brake rotor design for consistent braking
• Geomet rust-resistant coating to prevent corrosion
• Nominal thickness of 12.00 mm with a discard thickness of 10.50 mm
• Overall height of 68.00 mm and outside diameter of 312.00 mm
• Mounting bolt hole circle diameter of 139.70 mm with 6 lug holes

Detailed Product Specifications

This rear disc brake rotor from Power Stop is built to meet the exact specifications required for Hummer H3 and H3T vehicles. The rotor's nominal thickness is 12.00 mm, with a discard thickness of 10.50 mm, ensuring safe and reliable braking performance throughout its service life. The solid rotor design provides consistent heat dissipation and structural integrity. The Geomet coating offers enhanced resistance to rust and corrosion, which is critical for maintaining rotor longevity in various climates and road conditions. The rotor measures 312.00 mm in outside diameter and 68.00 mm in overall height, with a mounting bolt hole circle diameter of 139.70 mm and 6 lug holes sized at 5.50 mm, ensuring precise fitment and secure installation.

About the Power Stop - Rear Genuine Geomet Coated Rotor Line

The Power Stop - Rear Genuine Geomet Coated Rotor product line focuses on delivering rotors with advanced corrosion protection through Geomet coating technology. This coating reduces rust buildup, which can affect braking efficiency and rotor lifespan. These rotors are designed to meet or exceed OEM specifications, providing a reliable replacement option for rear brake systems on compatible vehicles such as the Hummer H3 and H3T.

Common Applications and Problem Solving

• Replacement for worn or warped rear rotors on Hummer H3 and H3T
• Addresses rotor corrosion issues caused by exposure to moisture and road salt
• Improves braking consistency by maintaining rotor thickness within safe limits
• Helps reduce brake noise and vibration associated with damaged rotors
• Supports safe vehicle operation by restoring proper rear brake function

Installation Notes and Tips

• Ensure compatibility with Hummer H3 or H3T rear brake assemblies before installation
• Check rotor thickness and discard limits to confirm replacement necessity
• Clean mounting surfaces and inspect lug holes for damage prior to installation
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Perform a brake system test after installation to verify proper operation

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet strict quality standards and OEM specifications. The Geomet coating provides additional protection against rust, contributing to the rotor's durability. While specific warranty details for part number AR8770EVC should be confirmed with the manufacturer or distributor, Power Stop typically offers limited warranties covering defects in materials and workmanship.