Wilwood 140-16166-DR Forged Narrow Superlite 4R Rear Brake Kit with Electronic Parking Brake

The Wilwood 140-16166-DR Forged Narrow Superlite 4R rear disc brake kit delivers professional-grade stopping power with the convenience of integrated electronic parking brake technology. Engineered for muscle cars and performance street machines requiring a parking brake solution, this complete big brake system provides the ultimate upgrade for vehicles with rear axle-mounted brake systems.

Complete Electronic Parking Brake System:

• FNSL4R four-piston radial-mount calipers with integrated electronic parking brake motors
• Electronic control unit (ECU) and universal wiring harness included for simplified installation
• EPB control switch provides push-button parking brake operation
• Delivers 2,400 lbs. of static clamping force without mechanical cables
• Forged aluminum caliper construction for strength and reduced weight

High-Performance Brake Components:

• Two-piece 13-inch or 14-inch diameter rotors with multiple design options
• BP-10 high-performance brake pad compound included
• Radial caliper mounting provides two planes of adjustment for precise rotor alignment
• Optimized to complement front big brake upgrades for balanced braking performance

Professional Installation Features:

• Complete kit includes calipers, rotors, pads, electronic control components, and mounting hardware
• Available in multiple caliper finishes to match your build style
• Rotor options allow customization for appearance and performance requirements
• Compatible with popular muscle car rear axle configurations

This kit eliminates the complexity of mechanical parking brake cables while providing superior holding power and modern electronic control. The FNSL4R caliper design integrates big brake styling with cutting-edge technology, making it ideal for custom builds, street rods, and high-performance street applications where both stopping power and parking brake functionality are essential.