Wilwood AERO4 Rear Big Brake Kit

2005–2011 Chrysler 300 2.7L/3.5L/3.6L V6 & 5.7L Hemi, 2005–2010 Dodge Challenger 3.5L/3.6L V6 & 5.7L Hemi, 2006–2011 Dodge Charger 2.7L/3.5L/3.6L V6 & 5.7L Hemi, 2005–2008 Dodge Magnum 2.7L/3.5L V6 & 5.7L Hemi

Part #: 140-11765-D

Overview

The Wilwood AERO4 Rear Big Brake Kit is a high-performance rear brake upgrade designed specifically for select Chrysler 300, Dodge Challenger, Charger, and Magnum models equipped with V6 and 5.7L Hemi engines. Featuring black powder-coated 4-piston calipers and large 14.25-inch drilled rotors, this kit delivers enhanced stopping power, improved heat dissipation, and superior durability compared to factory brakes. It is engineered to complement front big brake systems while maintaining compatibility with the original equipment parking brake and ABS systems.

Ideal for enthusiasts seeking increased braking performance for street, track, or custom applications, the AERO4 kit provides a balanced brake bias and reliable modulation without sacrificing daily drivability. Its aggressive styling and robust construction also enhance the appearance and capability of vehicles upgraded with larger wheels, tires, and suspension components.

Key Features

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

• High-capacity 4-piston AERO4 calipers with black powder coat finish for corrosion resistance and aggressive looks
• Oversized 14.25-inch drilled rotors for improved heat dissipation and fade resistance
• BP-10 compound brake pads optimized for consistent friction and long pad life
• Designed to integrate with original equipment parking brake assemblies for seamless functionality
• Compatible with factory ABS and master cylinder output to maintain vehicle safety systems
• Radial mount caliper design for enhanced stiffness and improved pedal feel
• OE axle offset of 0.00 for direct fitment without modifications
• Minimum 18-inch wheel diameter required for proper clearance

Construction & Design

The AERO4 rear brake kit features precision-machined rotors constructed from premium-grade cast iron with a drilled pattern to reduce heat buildup and prevent brake fade during aggressive driving. The calipers are crafted from lightweight yet durable aluminum alloy and finished with a tough black powder coat to resist corrosion and wear. The radial mount caliper design improves rigidity and braking response, while the kit’s components are engineered to fit directly onto the factory rear axle without the need for adapters or modifications.

Wilwood’s attention to detail ensures that the kit maintains the factory parking brake mechanism and ABS compatibility, preserving the vehicle’s original safety and convenience features. This thoughtful engineering results in a brake upgrade that is both functional and reliable for daily driving and spirited performance use.

Installation & Fitment

This rear big brake kit is designed for direct bolt-on installation on the following vehicles: 2005–2008 Dodge Magnum (2.7L, 3.5L V6, 5.7L Hemi), 2005–2010 Dodge Challenger (3.5L, 3.6L V6, 5.7L Hemi), 2005–2011 Chrysler 300 (2.7L, 3.5L, 3.6L V6, 5.7L Hemi), and 2006–2011 Dodge Charger (2.7L, 3.5L, 3.6L V6, 5.7L Hemi). It is not compatible with all-wheel-drive models or high-performance SRT8/392 variants.

The kit installs using existing mounting points and retains the original parking brake assembly, requiring no special tools or modifications. A minimum 18-inch wheel diameter is necessary to accommodate the larger rotor and caliper assembly. Professional installation is recommended to ensure proper brake system bleeding and adjustment.

What's Included

• Pair of Wilwood AERO4 4-piston black powder-coated rear calipers
• Two 14.25-inch drilled rotors
• BP-10 compound brake pads pre-installed in calipers
• Mounting hardware and brackets for OE parking brake integration
• 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 and suspension setups. It suits street drivers seeking improved safety and pedal feel, as well as weekend racers and track day participants who demand consistent stopping power under high stress. Additionally, it complements vehicles with larger wheels and tires that benefit from increased brake clearance and style.

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.