PowerStop AR8374SCR Disc Brake Rotor - Rear

Rear Coated Rotor Overview

PowerStop AR8374SCR is a rear disc brake rotor built as a direct bolt-on replacement for original equipment. It is engineered for Ram 2500 and Ram 3500 applications with OE-style fitment, matching key specifications such as weight and vane count.

Key Features

• Partially coated rotor with silver epoxy on the hat, outer edge, and vanes.
• Rust-resistant finish helps protect exposed areas from corrosion.
• Vented, full cast construction with a smooth surface.
• Mill balanced for consistent operation.
• Built to match original equipment dimensions and specifications.

Detailed Description

This PowerStop rear brake rotor is designed for drivers who want an OE-style replacement with corrosion protection in the areas most exposed to the elements. The coated hat and edge help preserve appearance behind alloy wheels, while the vented full cast design supports stable braking performance. With a 14.11-inch outside diameter, 1.35-inch nominal thickness, and 8-lug bolt pattern, AR8374SCR is built around the factory-style dimensions used on Ram 2500 and Ram 3500 rear brake applications. This part number, AR8374SCR, is also referenced by 5212 2184AA and 6841 4884AB for the same application.

What It Helps Address

• Corrosion on exposed rotor surfaces.
• Brake pulsation caused by worn or out-of-spec rotors.
• Reduced braking consistency from a rotor that no longer matches OE dimensions.
• Unsightly rust buildup visible through alloy wheels.

Installation Notes and Tips

Confirm rear axle fitment, bolt circle diameter, and rotor dimensions before installation. This rotor is a direct replacement for applications listed in the fitment data and should be matched to the vehicle’s original brake configuration. Inspect pads, caliper hardware, and hub condition during service to help ensure proper rotor seating and braking performance.

Quality Assurance

PowerStop designs this rotor to match original equipment performance and specifications, including weight and vane count, for verified fitment. The coated surfaces are intended to resist corrosion in common exposure areas and maintain a cleaner appearance over time.