Wilwood 140-13903-R Big Brake Disc Brake Kit - AERO6

The Wilwood 140-13903-R is a complete AERO6 Big Brake Disc Brake Kit engineered for maximum stopping performance in heavy-duty and high-demand applications. Whether you're building a high-performance street/track car or upgrading a truck or SUV for towing and off-road use, this kit delivers the braking capacity to match.

The AERO6 six-piston caliper was purpose-built to provide exceptional braking force with large-diameter rotors, making it one of Wilwood's most capable caliper designs. Kits designed for specific vehicle applications are fully compatible with OE master cylinder output and factory ABS systems, ensuring a seamless, street-legal upgrade.

Key Features:

• AERO6 six-piston forged billet aluminum calipers for high-clamping force and reduced weight
• Directional staggered-vane rotor design (14.00"–15.00" diameter) for maximum airflow and cooling
• Optimized for sustained high-heat durability under extreme braking conditions
• Compatible with OE master cylinder and factory ABS systems on supported applications
• Ideal for show cars, dual-purpose street/track builds, towing, and off-road upgrades
• Right-side (passenger side) caliper — sold individually or as part of a complete kit

Wilwood's AERO6 brake kits are a top choice for enthusiasts and builders demanding big brake performance with proven engineering. The 140-13903-R designation indicates the right-side caliper/rotor configuration, ensuring proper fitment and rotor vane direction for optimal thermal performance.