Wilwood 140-15846-DR AERO4 Big Brake Rear Kit 14" Drilled-Slotted Rotor (Red)

Vehicle Fitment

• Big Ford "New Style" rear axle (2.50" offset)

Features

• AERO4 four-piston radial-mount calipers
• Electronic parking brake (no cables required)
• Red powder-coated calipers for style and corrosion resistance
• 14.00" SRP drilled & slotted rotors for efficient cooling and fade reduction
• Spec-37 iron rotor construction for high thermal capacity
• 72-curved vane rotor design to optimize airflow
• Radial-mount brackets for proper caliper alignment and stiffness
• Included harness and control unit to operate the electronic parking brake

Specifications

• Part Number: 140-15846-DR
• Position: Rear
• Rotor Diameter: 14.00"
• Rotor Thickness: ~1.10"
• Vane Count: 72 curved vanes
• Caliper Material: Forged aluminum
• Pad Compound: BP-20
• Minimum Wheel Diameter: 18" recommended

Included Components

• 2x AERO4 four-piston calipers (red)
• 2x 14.00" SRP drilled & slotted rotors
• 2x Rotor hats (Big Brake flared bell style)
• Electronic parking brake control unit + wiring harness
• Full mounting hardware kit (bolts, shims, washers, etc.)

Product Description

The Wilwood 140-15846-DR AERO4 Big Brake Kit is designed for Big Ford New Style rear axles, providing high-performance rear braking with integrated electronic parking brake functionality. The four-piston calipers deliver reliable stopping power while the electronic system offers strong static clamping force without mechanical cables.

Paired with 14" SRP drilled and slotted rotors, the kit ensures excellent thermal management. The 72-curved vane design maintains airflow and reduces fade, making it ideal for high-performance street or custom applications. Red powder-coated calipers add style while resisting corrosion.

Installation is simplified with radial-mount brackets and included hardware. The electronic parking brake system eliminates cable routing, with the control unit and harness included. This kit is perfect for those upgrading a Big Ford New Style axle who want modern performance and reliable braking.