PowerStop AR8374 Disc Brake Rotor - Rear

Rear OE Stock Replacement Rotor

The PowerStop AR8374 is a rear disc brake rotor built as a direct-fit OE stock replacement for Ram heavy-duty trucks. It is made for rear brake service on Ram 2500 and Ram 3500 applications where original equipment fit, thickness, and rotor dimensions matter.

Power Stop’s Autospecialty rotor line focuses on stock-style replacement parts for drivers who want factory-style fitment and performance characteristics without changing the brake system setup.

Key Features

• Direct-fit rear disc brake rotor for OE-style replacement service
• Vented rotor design for rear brake applications
• Outside diameter: 14.10 in. / 358.30 mm
• Nominal thickness: 1.35 in. / 34.20 mm
• Discard thickness: 1.28 in. / 32.40 mm
• Overall height: 4.90 in. / 124.90 mm
• Mounting bolt hole circle diameter: 6.50 in. / 165.10 mm
• 8 lug hole quantity
• PowerStop AR8374 rear rotor for Ram 2500 and Ram 3500 brake service

Detailed Description

The PowerStop AR8374 rear OE stock replacement brake rotor is engineered for Ram 2500 and Ram 3500 trucks that need a factory-style rear rotor with the correct dimensions and vented construction. This rotor matches the OE fitment profile for rear brake maintenance on 2011-2025 Ram 2500, 2011-2012 Ram 3500, and 2009-2010 Dodge Ram 2500 and Ram 3500 rear applications. The PowerStop AR8374 is a practical choice when replacing worn rear rotors on heavy-duty Ram trucks and maintaining original brake geometry.

As part of the Power Stop Autospecialty brake rotor line, this rotor is positioned as a direct-fit replacement for original equipment fit and performance. The part number AR8374 is useful when searching for a rear brake rotor for Ram 2500 or Ram 3500 models, especially for owners comparing OE replacement options by exact application.

What It Helps Address

• Rear brake pulsation caused by rotor wear or thickness variation
• Brake noise related to worn or uneven rear rotors
• Reduced braking consistency from rotor surface deterioration
• Service replacement for rear rotors that have reached discard thickness
• OE-style restoration for Ram 2500 and Ram 3500 rear brake maintenance

Installation Notes and Tips

Verify rear axle and brake rotor dimensions before installation, especially outside diameter, bolt circle diameter, and lug count. Confirm the vehicle application against the listed fitment for 2009-2010 Dodge Ram 2500 and Ram 3500, 2011-2025 Ram 2500, and 2011-2012 Ram 3500 rear positions. For best results, inspect pads, caliper hardware, and hub condition during rotor replacement so the new rotor seats evenly.

Fits 2011-2025 Ram 2500, rear. Fits 2025 Ram 3500, rear. Fits 2011-2012 Ram 3500, rear. Fits 2009-2010 Dodge Ram 2500, rear. Fits 2009-2010 Dodge Ram 3500, rear.

Quality Assurance

Power Stop markets this rotor as an OE-style replacement within its Autospecialty line, with direct-fit dimensions intended to match original equipment requirements for the listed Ram and Dodge Ram rear applications. Part number AR8374 is the reference to use when confirming the correct rear rotor for your truck.