Wilwood 140-17142-D Big Brake Rear Parking Brake Kit Drilled Rotors - AERO4-MC4 with 14

The Wilwood 140-17142-D is an AERO4-MC4 Big Brake Rear Axle Kit engineered to replace factory rear disc brakes on late-model high-performance vehicles. Designed as a direct complement to front big brake upgrades, this kit delivers the stopping power, durability, and high-tech appearance demanded by performance builds and heavily modified vehicles.

At the heart of the system are AERO4R 4-piston calipers featuring a fully machined forged caliper body built for superior strength and resistance to deflection under extreme braking loads. Paired with BP-10 compound brake pads and oversized 14.00" rotors, the kit provides exceptional high-capacity braking performance that is precisely calibrated to work with the OE master cylinder output, factory ABS function, and individual vehicle brake bias requirements — no master cylinder upgrade required.

The MC4 parking brake assembly integrates seamlessly into the rear axle kit, providing a reliable and fully functional parking brake solution. The system is engineered for a bolt-on installation and is fully compatible with ABS-equipped vehicles and OE master cylinder output.

Key Features:

• AERO4R 4-piston rear calipers — forged, fully machined body for maximum rigidity
• BP-10 compound brake pads for high-capacity performance braking
• Oversized 14.00" drilled rotors for improved heat dissipation and bite
• MC4 parking brake assembly included — fully functional OE-style parking brake
• Compatible with factory ABS systems and OE master cylinder output
• Matched to individual vehicle front-to-rear brake bias requirements
• Bolt-on installation replaces factory rear disc brake components
• Ideal complement to front big brake upgrades on performance and custom builds

The Wilwood 140-17142-D is the ideal rear braking solution for vehicles equipped with large custom wheels, performance tires, and suspension upgrades — or any application where stock brake capacity is no longer sufficient.