Wilwood 140-15978-RD Electronic Rear Parking-Brake Retrofit Kit (Red)

Vehicle Fitment

• Universal / custom rear brake systems with 0.81" rotor width
• Requires custom bracket for mounting on most applications

Features

• Electronic parking brake setup - no mechanical cables or actuators
• Red powder-coated calipers for style and corrosion resistance
• 1-piston calipers with 1.250" bore for strong static clamping force
• Includes electronic controller, wiring harness, and dash switch
• Zero voltage draw after brake is actuated - holds position without power
• Plug-and-play harness simplifies wiring integration
• High holding power for safety on inclines or performance vehicles
• Built for retrofit - works with existing rear disc setups of correct rotor width

Specifications

• Part Number: 140-15978-RD
• Caliper Bore: 1.250" (1 piston)
• Pad Compound: BP-10
• Compatible Rotor Width: 0.810" / 1.10"
• Finish: Red powder coat
• Includes: Left & right calipers, EPB controller, harness, switch assembly
• Mounting: Requires custom bracket for most axle housings or spindles

Included Components

• 2x 1-piston electronic-brake calipers (red)
• 1x EPB control unit
• 1x Wiring harness for EPB
• 1x Dash-mounted switch assembly
• Mounting hardware (bolts, washers) for retrofit installation

Product Description

The Wilwood 140-15978-RD is an advanced retrofit solution for adding an electronic parking brake to rear disc setups with 0.81" rotor widths. Eliminating the need for mechanical cables, the system uses 1-piston red calipers with a 1.25" bore, providing strong static holding force once actuated.

The kit includes calipers, an electronic controller, wiring harness, and dash switch. Custom mounting brackets are typically required, but once installed, the system integrates cleanly and offers modern functionality with reliable braking performance.

Ideal for hot rods, restored classics, or performance builds, the 140-15978-RD provides a sleek, safe, and reliable electronic parking brake solution from Wilwood.