PowerStop AR8681XPR Disc Brake Rotor Set - Rear

Overview

PowerStop AR8681XPR is a rear disc brake rotor set built as a direct OE-style upgrade for improved cooling and consistent braking performance. The drilled and slotted design helps manage heat, gas, dust, and moisture while the zinc dichromate coating adds corrosion resistance.

Compatible With Chevrolet Camaro rear brake applications and Cadillac CTS rear brake applications, this rotor set is engineered for a direct fit with no special modifications needed. The AR8681XPR part number is also referenced as PowerStop AR8681XPR for easy identification.

Key Features

• Slotted and cross-drilled surface helps maintain a cleaner friction contact area.
• Vented rotor construction supports heat management during repeated stops.
• Silver zinc dichromate plating resists rust and corrosion.
• Direct OE fit simplifies replacement on supported rear brake applications.
• 14.40 in. outside diameter with 5-lug bolt pattern.

Detailed Description

PowerStop AR8681XPR is a drilled and slotted brake rotor set for rear brake service on select Chevrolet Camaro and Cadillac CTS applications. The rotor surface uses rounded slots and precision cross-drilling to help sweep away gases, dust, and moisture, which supports stable pad contact under demanding braking conditions. The vented design and 26.00 mm nominal thickness provide the structure expected in a performance-oriented replacement rotor.

The zinc-coated finish helps protect the rotor from rust and corrosion, making it a practical choice for drivers replacing worn rear rotors with an OE-fit upgrade. If you are searching for a Chevrolet Camaro rear brake rotor set or a Cadillac CTS rear disc brake rotor replacement, AR8681XPR is built for that application. This part cross-references Four Seasons 55163 for the same application.

What It Helps Address

• Brake fade from heat buildup during repeated stops.
• Surface contamination from dust, gas, and moisture.
• Rust and corrosion on exposed rotor surfaces.
• Worn rear rotors that need direct-fit replacement.
• Uneven pad contact caused by glazed or contaminated rotor faces.

Installation Notes

Install as a direct OE-fit rear rotor replacement on listed applications. Verify rotor dimensions, bolt circle, and fitment before installation. No special modifications are needed when used on the supported Chevrolet Camaro and Cadillac CTS rear brake applications.

Quality Assurance

PowerStop designs these rotors as bolt-on upgrades with OE fitment and corrosion-resistant plating. The AR8681XPR part number identifies the drilled and slotted rear rotor set for supported applications.