Wilwood 140-13583-R AERO4 Big Brake Rear Disc Brake Kit 14.00" Red Calipers with Brake Lines

The Wilwood 140-13583-R AERO4 Big Brake Rear Axle Kit is a complete rear disc brake upgrade engineered for late-model high-performance vehicles. Designed to replace factory rear disc brakes while retaining the OE parking brake assembly, this kit is an ideal complement to front big brake upgrades on custom, show, and high-performance street machines.

At the heart of the system are W4AR four-piston AERO4 radial-mount calipers finished in red powder coat, paired with oversized 14.00" x 1.10" GT 72 curved-vane slotted two-piece rotors and BP-10 high-friction compound brake pads. The entire system is engineered to work in harmony with the OE master cylinder output, ABS function, and individual vehicle front-to-rear brake bias requirements — no master cylinder upgrade required.

Key Features:

• AERO4 four-piston radial-mount calipers in red powder coat finish
• Oversized 14.00" x 1.10" GT 72 curved-vane slotted two-piece rotors
• BP-10 high-friction compound brake pads included
• Replaces factory rear disc brakes; retains OE parking brake assembly
• Matched to OE master cylinder output and ABS system — no additional modifications required
• Brake lines included with this kit
• Designed to complement front big brake upgrades on late-model performance vehicles
• Compatible with large-diameter custom wheel and tire packages

The AERO4 caliper incorporates race-proven technology with internal fluid ports that eliminate external fluid cross-over tubes for a cleaner, more reliable design. Radial mounting and forged aluminum construction deliver maximum rigidity and heat resistance for sustained high-performance braking on the street or track. This kit delivers enhanced stopping power, increased durability, and aggressive high-tech style to complement big wheel, tire, and suspension upgrades on customized or performance-modified vehicles.