Wilwood 140-17275-DR AERO4 MC4 Rear Brake Kit with Drilled Rotors

The Wilwood 140-17275-DR AERO4 MC4 rear disc brake kit delivers professional-grade stopping power for heavy-duty trucks and SUVs. This direct-mount brake system features large-capacity calipers engineered specifically for extreme-duty vehicles, towing applications, and off-road use.

Key Features:

• AERO4 MC4 six-piston calipers with direct-mount design for maximum rigidity and heat dissipation
• Large diameter drilled rotors (13.38" to 13.56" diameter) for enhanced cooling and sustained high-heat performance
• OEM-style one-piece rotor construction provides superior durability and thermal stability
• Fully compatible with factory master cylinder output and ABS systems
• Engineered for heavy-weight vehicles, towing, and wheel/tire upgrades
• Direct bolt-on installation for specific vehicle applications

This complete brake kit provides the increased stopping capacity needed for lifted trucks, heavy cargo loads, trailer towing, and aggressive off-road driving. The drilled rotor design enhances heat dissipation during repeated hard braking, while the six-piston caliper configuration ensures consistent pad contact and even wear for long-term reliability.