Wilwood AERO4 Rear Big Brake Kit

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

Part #: 140-11765

Overview

The Wilwood AERO4 Rear Big Brake Kit is a high-performance upgrade designed specifically for select rear-wheel-drive Chrysler and Dodge vehicles, including the Chrysler 300, Dodge Challenger, Charger, and Magnum models from 2005 to 2011. This kit replaces the factory rear disc brakes with larger, more capable components that enhance stopping power, durability, and overall braking performance while maintaining compatibility with the original equipment parking brake system.

Ideal for enthusiasts seeking improved brake response and fade resistance, the AERO4 kit is engineered to complement front big brake upgrades and support vehicles equipped with larger wheels, tires, and suspension modifications. It delivers consistent, balanced braking that matches the factory ABS and master cylinder output, ensuring safe and reliable operation under demanding driving conditions.

Key Features

Wilwood’s AERO4 Rear Big Brake Kit combines advanced design and materials to provide superior braking performance and style. Key features include:

• Four-piston AERO4 black powder-coated calipers for increased clamping force and heat dissipation
• Oversized 14.25-inch slotted rotors that improve cooling and reduce brake fade
• BP-10 high-performance brake pads formulated for consistent friction and long wear
• Direct bolt-on replacement for factory rear disc brakes with no modifications required
• Maintains compatibility with original equipment parking brake assembly
• Optimized for use with factory ABS systems and master cylinder output
• Designed for vehicles with 18-inch or larger wheels to accommodate rotor size
• Durable construction suitable for street, strip, and performance driving

Construction & Design

The AERO4 calipers are crafted from lightweight yet robust aluminum alloy and finished with a corrosion-resistant black powder coat for lasting durability and a sleek appearance. The slotted rotors are precision-machined from high-grade cast iron to provide excellent thermal conductivity and resistance to warping under extreme heat. The slots on the rotors help evacuate gases and debris, maintaining clean pad contact and consistent braking performance.

Wilwood engineers designed this kit to integrate seamlessly with the original parking brake hardware, ensuring that no additional modifications are necessary. The caliper mounting and rotor dimensions are tailored to the specific rear axle offset and brake system geometry of the supported vehicles, preserving factory brake bias and pedal feel.

Installation & Fitment

This rear big brake kit is a direct bolt-on upgrade for the following rear-wheel-drive vehicles equipped with 2.7L, 3.5L, 3.6L V6, and 5.7L Hemi engines, excluding AWD and SRT8/392 models:

• 2005–2011 Chrysler 300 / 300C
• 2005–2010 Dodge Challenger
• 2006–2011 Dodge Charger
• 2005–2008 Dodge Magnum

Installation requires no custom fabrication or modifications to the factory parking brake system. However, a minimum 18-inch wheel diameter is recommended to clear the larger rotors and calipers. Professional installation is advised to ensure proper brake system bleeding and calibration.

What's Included

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

Ideal For

This Wilwood AERO4 Rear Big Brake Kit is perfect for performance enthusiasts and daily drivers who demand enhanced rear braking capability on their Chrysler 300, Dodge Challenger, Charger, or Magnum. It suits vehicles with upgraded front brakes, larger wheels, or increased power output that require improved rear brake balance and fade resistance. Whether for spirited street driving, occasional track use, or towing applications, this kit delivers reliable stopping power with a refined, high-tech appearance.

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.