Wilwood AERO4 Rear Big Brake Kit

Fits Most Chrysler/Dodge 6.4L/5.7L/3.6L (12-15)

Part #: 140-14068-R

Overview

The Wilwood AERO4 Rear Big Brake Kit is engineered to deliver superior stopping power and enhanced braking performance for select rear-wheel-drive Chrysler 300, Dodge Challenger, and Dodge Charger models from 2012 through 2023. Designed specifically for vehicles equipped with 3.6L V6 and 5.7L Hemi engines (excluding AWD, 6.4L 392, and 6.2L Hellcat variants), this kit upgrades your rear braking system with high-capacity four-piston calipers and oversized slotted rotors. Ideal for enthusiasts seeking improved brake modulation, durability, and style, the AERO4 kit complements front big brake upgrades and supports aggressive driving and heavier wheel and tire setups.

Key Features

This rear big brake kit combines advanced engineering and premium components to ensure reliable, consistent braking performance under demanding conditions:

• High-performance Wilwood AERO4 four-piston calipers with red powder coat finish for corrosion resistance and visual appeal
• Oversized 14.25-inch slotted rotors designed to improve heat dissipation and reduce brake fade
• BP-10 compound brake pads optimized for strong initial bite and consistent pedal feel
• Compatible with original equipment (OE) parking brake assemblies for seamless integration
• Calibrated to work with OE master cylinder output and ABS systems, maintaining factory brake bias and safety functions
• Radial mount caliper design for enhanced rigidity and improved braking response
• Minimum 18-inch wheel diameter required to accommodate the larger rotor size
• Engineered specifically for rear-wheel-drive applications, excluding AWD and high-performance Hellcat/392 variants

Construction & Design

The Wilwood AERO4 Rear Big Brake Kit features precision-machined, lightweight aluminum calipers that provide excellent strength-to-weight ratio and superior heat management. The calipers are finished in a durable red powder coat that resists corrosion and adds a striking visual upgrade to your vehicle’s rear brakes. The 14.25-inch rotors are crafted from high-quality iron with slotted surfaces to enhance cooling and maintain consistent friction under heavy braking. This combination ensures long-lasting performance and reliability, even in demanding driving conditions.

Installation & Fitment

This kit is designed as a direct replacement for the factory rear disc brakes on 2012–2023 Chrysler 300, Dodge Challenger, and Dodge Charger models equipped with 3.6L V6 and 5.7L Hemi engines in rear-wheel-drive configurations. It utilizes the original equipment parking brake assembly, allowing for straightforward installation without the need for custom modifications. However, due to the larger rotor diameter, a minimum 18-inch wheel size is required to ensure proper clearance. Professional installation is recommended to maintain optimal brake system performance and safety.

What's Included

• Two Wilwood AERO4 four-piston red powder-coated calipers
• Two 14.25-inch slotted rotors
• BP-10 compound brake pads pre-installed in calipers
• Mounting hardware and brackets compatible with OE parking brake assembly
• Installation instructions

Ideal For

This rear big brake kit is perfect for performance enthusiasts and daily drivers who demand enhanced braking capability from their Chrysler 300, Dodge Challenger, or Dodge Charger without compromising factory ABS and parking brake functions. It is especially suited for vehicles upgraded with larger wheels and tires, or those used in spirited driving, track days, or towing applications where improved rear brake performance and heat management are critical.

Wilwood Engineering is a major manufacturer of high-performance disc brake solutions spanning racing, street performance, and specialty OE applications. From big brake kits and calipers to rotors and hydraulic components, Wilwood upgrades are built for stronger stopping power, better heat management, and consistent pedal feel when stock brakes aren’t enough.