Wilwood 140-15846-DR AERO4 Rear Big Brake Electronic Parking Brake Kit

The Wilwood 140-15846-DR AERO4 Big Brake Rear Electronic Parking Brake Kit delivers a premium rear big brake solution for high-performance muscle cars and custom builds that require a reliable parking brake system. Designed specifically for Big Ford New Style rear axles, this kit combines Wilwood’s AERO4 four-piston radial-mount calipers with massive 14-inch two-piece rotors and high-performance BP compound brake pads for optimized stopping power and balanced brake bias when paired with front big brake systems.

Unlike traditional mechanical cable-operated parking brakes, this system features Wilwood’s Electronic Parking Brake (EPB) calipers, which provide high static holding torque without mechanical cables. The included electronic control unit and wiring harness greatly simplify installation and operation while delivering modern functionality and clean packaging. With optional caliper finishes and rotor styles available, this kit also allows builders to tailor both performance and aesthetics to their specific application.

Key Features & Benefits

• Complete AERO4 rear big brake kit with electronic parking brake

• Designed for Big Ford New Style rear axles

• Electronic parking brake eliminates mechanical cables

• High static holding torque for secure parking

• AERO4 four-piston radial-mount calipers

• Large 14-inch two-piece rotors for improved heat capacity

• High-performance BP compound brake pads

• Optimized to complement front big brake upgrades

• Includes control unit and wiring harness for simplified installation

• Ideal for street performance, show cars, and custom builds

Calipers Included

• Left Hand Caliper: Wilwood 120-13338-RD

• Right Hand Caliper: Wilwood 120-13338-RD

• AERO4 radial-mount four-piston electronic parking brake calipers

Rotors Included

• Left Hand Rotor: Wilwood 160-8401-BK

• Right Hand Rotor: Wilwood 160-8400-BK

• Two-piece rotor design for improved cooling and reduced unsprung weight

Rotor Hats Included

• Rotor Hat: Wilwood 170-15860

Package Contents

• (2) AERO4 Electronic Parking Brake Calipers (LH & RH)

• (2) 14-inch Two-Piece Brake Rotors (LH & RH)

• (1) Pair of Rotor Hats

• High-performance BP compound brake pads

• Electronic parking brake control unit

• Wiring harness assembly

• Required mounting hardware

   

Vehicle Fitment

• Universal Fit (Axle-Specific)

• Designed for vehicles using Big Ford New Style rear axles

• Intended for custom muscle cars, street performance vehicles, and show builds

• Requires minimum 18-inch wheel diameter

• Professional installation recommended

Additional Notes

• Designed to balance braking performance when paired with front big brake kits

• Electronic parking brake system eliminates cable routing and adjustment

• Brake system modifications may not be legal for street use in all regions

• Always verify axle offset, wheel clearance, and brake bias before installation