PowerStop AR8374XPR Drilled & Slotted Rear Rotors for 2009-25 Ram 2500/3500

Vehicle Fitment

• 2009-2025 Ram 2500 (8-lug rear disc) - including Big Horn, Laramie, Limited, Lone Star, Power Wagon, Rebel, Tradesman
• 2009-2025 Ram 3500 (8-lug rear disc, single-rear-wheel configuration) - including Big Horn, Laramie, Limited, Longhorn, Special Service, Tradesman
• Fitment confirmed through 2025 for listed models. Always verify by VIN for exact configuration.

Features

• Cross-drilled rotor surface for enhanced cooling under heavy braking
• Directional slots help evacuate gases, dust and moisture to maintain pad contact
• Zinc-dichromate plating offers corrosion and rust protection
• G3000 grade cast-iron construction for durability and thermal stability
• Mill-balanced rotor design ensures smooth braking and reduced vibration
• Direct OE-replacement fit for 8-lug heavy-duty trucks - no modifications required
• Enhanced visual appeal with drilled & slotted finish behind open-spoke wheels or heavy-duty trucks
• Improved fade resistance and consistent braking under towing, hauling or performance use

Specifications

• Location: Rear axle (pair of rotors) for 8-lug Ram 2500/3500 trucks
• Outside diameter: ~358.3 mm (14.10")
• Nominal thickness: ~34.2 mm (1.35")
• Minimum thickness: ~32.4 mm (1.28")
• Overall height: ~124.9 mm (4.92")
• Stud/lug hole quantity: 8-lug configuration
• Surface type: Drilled & slotted, vented one-piece rotor

Included Components

• 2x Rear drilled & slotted rotors (left-hand & right-hand) - part set AR8374XPR

Product Description

The PowerStop AR8374XPR drilled & slotted rear rotor pair is engineered specifically for the rear-disc brake systems of 8-lug heavy-duty trucks such as the Ram 2500 and Ram 3500 (2009 through 2025). These rotors upgrade the braking system by combining cross-drilled holes for superior heat dissipation with directional slots to keep the pad-to-rotor contact clean during demanding use, such as towing or hauling heavy loads.

Installation is designed for a direct OE-replacement fit, matching the original vane count, mounting interface and brake system design - so no special modifications are necessary. The zinc plating adds corrosion resistance, while the high-grade cast-iron construction ensures long-term durability and reliable braking performance even under rigorous conditions.

Ideal for truck owners upgrading their rear braking system - from worn OEM rotors to performance-oriented drilled & slotted rotors - this part provides a tangible performance and aesthetic improvement without moving to an entirely aftermarket big-brake conversion. With fitment confirmed through 2025 for the listed models, buyers should still verify their specific trim, axle and wheel configuration by VIN to ensure compatibility.