Wilwood 140-16167 AERO4 Rear Big Brake Electronic Parking Brake Kit

The Wilwood 140-16167 AERO4 Big Brake Rear Electronic Parking Brake Kit is a premium rear braking solution designed for vehicles equipped with a 12-bolt rear axle that require a fully functional parking brake. Engineered for custom muscle cars, high-performance street builds, and show vehicles, this kit delivers exceptional stopping power while maintaining modern electronic parking brake functionality.

This system pairs Wilwood’s AERO4 four-piston radial-mount calipers with large 14.00-inch two-piece rotors and high-performance BP compound brake pads to provide balanced braking performance that perfectly complements front big brake upgrades. The Electronic Parking Brake (EPB) calipers generate high static holding torque without mechanical cables, while the included control unit and wiring harness simplify installation and operation.

Key Features & Benefits

• Complete AERO4 rear big brake kit with electronic parking brake

• Designed for 12-bolt rear axle applications

• Electronic parking brake eliminates mechanical cables

• High static holding torque for secure vehicle parking

• AERO4 four-piston radial-mount calipers

• Black caliper finish for a clean, understated appearance

• Large 14.00-inch two-piece rotors for improved heat capacity

• High-performance BP compound brake pads included

• Optimized to complement front big brake systems

• Control unit and wiring harness included for simplified installation

Kit Specifications

• Rear End Axle: 12 Bolt

• Axle Offset: 2.75 in

• Mount Type: Radial

• Caliper Type: AERO4 – 4 Piston

• Caliper Finish: Black

• Rotor Diameter: 14.00 in

• Minimum Wheel Diameter Required: 18 in

Calipers Included

• Left Hand Caliper: Wilwood 120-13338-RD

• Right Hand Caliper: Wilwood 120-13338-RD

• Caliper Type: AERO4 Electronic Parking Brake

Rotors Included

• Left Hand Rotor: Wilwood 160-8403-GTB

• Right Hand Rotor: Wilwood 160-8402-GTB

• Rotor Type: GT 72 Curved Vane

• Rotor Style: GT Slotted

   

Rotor Hats Included

• Rotor Hat: Wilwood 170-15860

• Hat Type: Big Brake Hat – Flared Bell

• Material: Aluminum

Package Contents

• (2) AERO4 Electronic Parking Brake Calipers (Black)

• (2) 14.00-inch Two-Piece Brake Rotors (LH & RH)

• (1) Pair of Aluminum Flared-Bell Rotor Hats

• High-performance BP compound brake pads

• Electronic parking brake control unit

• Wiring harness assembly

• All required mounting hardware

Vehicle Fitment

• Universal Fit (Axle-Specific)

• Designed for vehicles equipped with a 12-bolt rear axle

• Axle Offset: 2.75 in

• Requires minimum 18-inch wheels

• Ideal for custom muscle cars and performance street builds

• Professional installation recommended

Additional Notes

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

• Electronic parking brake eliminates cable routing and adjustment

• Wheel clearance must be verified prior to installation

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