PowerStop AR8647XPR Disc Brake Rotor Set - Rear

Power Stop Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair Overview

The Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair (Part Number AR8647XPR) is engineered for reliable braking performance on select GM and Isuzu SUVs and trucks. Designed specifically for rear axle applications, this disc brake rotor set offers enhanced heat dissipation and corrosion resistance to maintain consistent stopping power.

• Compatible with Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab models including Trailblazer, Envoy, Ascender, and more
• Vented rotor design for improved heat management
• Slotted and drilled surface for better brake pad bite and debris removal
• Zinc plated coating to resist rust and corrosion
• Nominal thickness between 18.50 mm and 20.00 mm with discard thickness at 18.50 mm
• Overall rotor diameter of 324 mm (12.80 inches) and height of 85.10 mm (3.40 inches)
• Mounting bolt hole circle diameter of 127 mm (5 inches) with 6 lug holes

Product Line Details: Power Stop - Rear Drilled, Slotted and Zinc Plated Brake Rotor Pair

This Power Stop product line focuses on rear brake rotors that combine drilled and slotted surfaces with a zinc plating finish. The drilled and slotted design helps reduce brake fade by improving heat dissipation and allowing gases and debris to escape during braking. Zinc plating provides a protective layer against rust, extending rotor life especially in environments prone to moisture and road salt. This rotor pair is vented to further enhance cooling, making it suitable for vehicles like the Chevrolet Trailblazer and GMC Envoy that require dependable rear braking components.

Detailed Product Description

The AR8647XPR disc brake rotor set is designed to meet the specific braking needs of rear wheels on mid-size SUVs and trucks from Buick, Chevrolet, GMC, Isuzu, Oldsmobile, and Saab. Featuring a vented rotor construction, it allows air to flow between the rotor surfaces, reducing heat buildup during heavy braking. The slotted and drilled surface pattern improves pad contact and helps clear away brake dust and water, contributing to consistent brake performance. The zinc plating protects the rotor from corrosion, which is critical for maintaining rotor integrity and appearance over time.

Common Applications and Problem Solving

• Replacement for worn or warped rear brake rotors on Chevrolet Trailblazer and GMC Envoy models
• Addresses brake fade caused by excessive heat during towing or heavy braking
• Prevents rust and corrosion that can lead to uneven braking or rotor damage
• Improves braking response and pad life by maintaining a clean rotor surface
• Suitable for vehicles experiencing vibration or noise due to rotor surface wear

Installation Notes and Tips

• Ensure compatibility with vehicle make and model before installation
• Check rotor thickness and discard limits; replace if below 18.50 mm nominal thickness
• Clean mounting surfaces and inspect wheel studs for damage
• Torque lug nuts to manufacturer specifications to avoid rotor warping
• Consider replacing brake pads simultaneously for optimal performance

Quality Assurance and Warranty

Power Stop rotors are manufactured to meet or exceed OEM specifications for fit, form, and function. The zinc plating and vented design contribute to durability and consistent braking performance. While specific warranty details are not provided here, Power Stop products typically come with a limited warranty against defects in materials and workmanship. Consult product documentation or manufacturer resources for exact warranty terms.