Wilwood 140-17142-R AERO4-MC4 Big Brake Rear Parking Brake Kit with Red Calipers 14.00" Rotors

The Wilwood AERO4-MC4 Big Brake Rear Parking Brake Kit is a complete bolt-on rear brake upgrade engineered for late-model high-performance vehicles. Designed to replace the factory rear disc brakes, this kit incorporates the MC4 parking brake assembly and pairs seamlessly with Wilwood front big brake upgrades for a fully balanced, high-capacity braking system.

At the heart of this kit are the AERO4R four-piston calipers, featuring fully detail-machined forged caliper bodies that deliver superior strength and resistance to deflection under high braking loads. Finished in an aggressive red powder coat, these calipers add race-inspired style to complement custom wheel and suspension builds.

Key Features:

• AERO4R four-piston calipers — competition-proven forged construction with red powder coat finish
• Oversized 14.00" rotors — maximizes thermal capacity and braking force
• BP-10 compound brake pads — high-friction formulation for confident, fade-resistant stopping power
• MC4 parking brake assembly — fully integrated mechanical parking brake operation
• OE-compatible design — matched to factory master cylinder output, ABS function, and vehicle brake bias requirements
• Bolt-on installation — direct replacement for factory rear disc brakes using common hand tools

This kit is purpose-built for vehicles with increased brake demands, including those running big wheels, lowered suspension, or front big brake upgrades. The combination of oversized rotors, high-friction pads, and rigid four-piston calipers delivers measurably enhanced stopping performance, improved fade resistance, and long-term durability under street and track conditions.

Note: Wilwood Flexline brake lines are required to complete installation and must be ordered separately.