Wilwood 140-15138-R Dynapro Radial-MC4 Rear Disc Brake Kit 12.88in Slotted Rotors Red Calipers

The Wilwood Dynapro 4 Radial-MC4 Rear Axle Brake Kit (140-15138-R) is a complete rear disc brake upgrade engineered to replace factory disc brakes on late-model high-performance vehicles. Featuring red powder-coated Dynapro Radial 4-piston calipers paired with slotted rotors, this kit integrates an MC4 mechanical parking brake assembly, making it an ideal complement to front big brake kit upgrades.

At the core of this system are oversized 12.88-inch slotted rotors, Dynapro Radial 4-piston calipers, and BP-10 high-performance brake compound pads. The entire system is calibrated to work in harmony with the OEM master cylinder output, factory ABS function, and individual vehicle front-to-rear brake bias requirements — delivering a performance upgrade without compromising street drivability.

Key Features:

• Dynapro 4-piston Radial mount calipers with red powder-coat finish
• Oversized 12.88-inch slotted iron rotors for enhanced heat dissipation
• Integrated MC4 mechanical parking brake assembly
• BP-10 compound brake pads included
• Designed to complement front big brake kit upgrades
• Compatible with factory OE master cylinder output and ABS systems
• Engineered to meet individual vehicle front-to-rear brake bias requirements
• Requires 17-inch or larger wheels for proper clearance

This Wilwood rear brake kit is purpose-built for customized vehicles and performance builds running larger wheels, tires, and suspension upgrades. The combination of high-capacity stopping power and race-inspired styling makes it an exceptional upgrade for enthusiasts demanding more from their rear braking system.