Wilwood AERO4 Rear Big Brake Kit

Fits Most Chrysler/Dodge (05-11)

Part #: 140-11765-DR

Overview

The Wilwood AERO4 Rear Big Brake Kit is a high-performance upgrade designed for select Chrysler and Dodge rear-wheel-drive models from 2005 to 2011, including the Chrysler 300, Dodge Challenger, Dodge Charger, and Dodge Magnum. This kit replaces the factory rear disc brakes with larger, more capable components that enhance braking power, durability, and style. Featuring red powder-coated 4-piston calipers and drilled 14.25-inch rotors, it is engineered to work seamlessly with the original equipment parking brake and ABS systems.

Ideal for enthusiasts seeking improved rear braking performance to complement front big brake upgrades, this kit supports vehicles with increased brake demands due to larger wheels, tires, or suspension modifications. It maintains proper brake bias and master cylinder compatibility, ensuring safe and reliable stopping power under spirited driving conditions.

Key Features

The Wilwood AERO4 Rear Big Brake Kit combines advanced engineering and quality materials to deliver superior braking performance and aesthetics. Key features include:

• Four-piston AERO4 calipers with durable red powder-coat finish for corrosion resistance and visual appeal
• Drilled 14.25-inch rotors designed for improved heat dissipation and reduced brake fade
• BP-10 high-performance brake pads formulated for consistent friction and long pad life
• Compatibility with original equipment parking brake assembly for seamless integration
• Designed to match OE master cylinder output and ABS function for balanced brake bias
• Radial mount caliper design for enhanced stiffness and improved pedal feel
• Minimum 18-inch wheel diameter required to accommodate the larger rotor size
• Engineered specifically for rear-wheel-drive applications excluding AWD and high-performance SRT8/392 variants

Construction & Design

The AERO4 calipers are precision-machined from lightweight yet robust aluminum alloy, providing excellent strength-to-weight ratio and resistance to thermal distortion. The drilled rotors feature a high-carbon iron composition optimized for heat management and durability, while the drilled holes aid in gas and debris evacuation to maintain consistent braking performance. The red powder-coat finish on the calipers not only enhances corrosion resistance but also adds a striking visual upgrade to the rear brake assembly.

Wilwood’s radial mount caliper design improves caliper rigidity and reduces flex under heavy braking, resulting in a firmer pedal feel and more precise brake modulation. The kit’s components are engineered to fit directly onto the factory rear axle housing with no need for custom brackets or adapters, simplifying installation and ensuring proper alignment.

Installation & Fitment

This rear big brake kit is designed for direct bolt-on installation on 2005–2011 Chrysler 300, 2005–2011 Dodge Challenger, 2006–2011 Dodge Charger, and 2005–2008 Dodge Magnum models equipped with rear-wheel drive and excluding AWD, 6.1L SRT8, and 6.4L 392 engine variants. The kit utilizes the original equipment parking brake hardware, allowing it to function without modification.

Installation requires wheels with a minimum diameter of 18 inches to clear the larger 14.25-inch rotors and calipers. Professional installation is recommended to ensure proper brake system bleeding and calibration of ABS components.

What's Included

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

Ideal For

This Wilwood AERO4 Rear Big Brake Kit is ideal for performance enthusiasts and custom vehicle builders who require enhanced rear braking capability to match upgraded front brakes, larger wheels, or increased vehicle power. It suits street performance, occasional track use, and any application where improved brake modulation, heat management, and durability are desired without sacrificing factory parking brake functionality.

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.