Wilwood 2015-2023 Mustang AERO4-MC4 Big Brake Rear Parking Brake Kit

Upgrade the rear braking performance of your 2015-2023 Ford Mustang with the Wilwood AERO4-MC4 Big Brake Rear Parking Brake Kit. Designed as a complement to Wilwood front big brake upgrades, this rear axle kit replaces the factory disc brakes with high-capacity Aerolite 4R four-piston calipers, dedicated MC4 mechanical parking brake calipers and oversized 14.00-inch two-piece rotors. The system is engineered to work with the OE master cylinder output, ABS function and vehicle brake bias requirements.

The AERO4-MC4 system combines performance braking with a fully functional mechanical parking brake. Available configurations include black or red powder-coated calipers with either GT Slotted or SRP Drilled & Slotted rotors. Wilwood BP-10 compound brake pads, parking brake cables and stainless steel braided flexlines complete the package for a comprehensive rear brake upgrade.

Product Features:

Wilwood AERO4-MC4 Big Brake Rear Parking Brake Kit
Designed for 2015-2023 Ford Mustang Applications
Aerolite 4R Four-Piston Rear Brake Calipers
MC4 Mechanical Parking Brake Calipers
14.00" Two-Piece Rotors
Available with GT Slotted Rotors
Available with SRP Drilled & Slotted Rotors
Available with Black or Red Powder-Coated Calipers
Includes BP-10 Compound Brake Pads
Includes Parking Brake Cables
Includes Stainless Steel Braided Flexline Kit
Designed to Complement Wilwood Front Big Brake Upgrades
Engineered for Compatibility with OE Master Cylinder Output and ABS Function
Designed for High-Performance Street and Track Applications

Specifications:

Manufacturer	Wilwood Engineering
Product Type	Big Brake Rear Parking Brake Kit
Brake Location	Rear
Rear Brake Caliper	Aerolite 4R
Caliper Pistons	4
Parking Brake Caliper	MC4 Mechanical
Caliper Colors	Black or Red Powder Coat
Rotor Diameter	14.00"
Rotor Styles	GT Slotted or SRP Drilled & Slotted
Mount Type	Radial
Rear End / Axle	OEM
Axle Offset	0.00"
Minimum Wheel Diameter	18"*
Vehicle Application	2015-2023 Ford Mustang

*Wilwood states this brake kit may fit 18-inch wheels. Actual wheel clearance should be verified using Wilwood's wheel clearance diagram before installation.

Available Configurations:

140-13888 - Black Calipers - GT Slotted Rotors
140-13888-R - Red Calipers - GT Slotted Rotors
140-13888-D - Black Calipers - SRP Drilled & Slotted Rotors
140-13888-DR - Red Calipers - SRP Drilled & Slotted Rotors

Vehicle Fitment:

2015 Ford Mustang
2016 Ford Mustang
2017 Ford Mustang
2018 Ford Mustang
2019 Ford Mustang
2020 Ford Mustang
2021 Ford Mustang
2022 Ford Mustang
2023 Ford Mustang

Fitment Notes:

Designed for select 2015-2023 Ford Mustang applications.
Replaces the factory rear disc brake system.
Uses Aerolite 4R four-piston calipers for the primary rear braking system.
Uses dedicated MC4 mechanical calipers to provide parking brake functionality.
Uses oversized 14.00" rotors.
GT versions feature slotted rotors.
SRP versions feature drilled and slotted rotors.
Designed to work with OE master cylinder output, ABS function and vehicle brake bias requirements.
Parking brake cable part number 330-15137 is specified for this kit.
Flexline kit part number 220-13913 is specified for this application.
Wilwood lists an OEM rear axle configuration with a 0.00" axle offset.
Minimum wheel diameter is listed as 18"; actual wheel clearance must be verified before installation.
This is a rear brake and parking brake kit and does not include front brake components.