Wilwood 140-18074 Forged Narrow Superlite 4R Rear Disc Brake Kit

The Wilwood 140-18074 is a high-performance rear disc brake kit featuring Forged Narrow Superlite 4R (FNSL4R) four-piston calipers designed for custom street performance vehicles, trucks, and SUVs. This specialized big brake upgrade delivers superior stopping power while maintaining full functionality of your factory parking brake, master cylinder output, and ABS system.

Key Features:

• Forged Narrow Superlite 4R four-piston calipers for lightweight strength and consistent performance
• BP-10 compound brake pads provide excellent bite and fade resistance for street applications
• Compatible with 13"-14" rotors for optimized heat dissipation and braking force
• Retains full use of OE parking brake mechanism for complete functionality
• Works with factory master cylinder and ABS systems—no additional modifications required
• Available in multiple caliper finishes to match your vehicle's aesthetic
• Multiple rotor design options for customized style and performance

This rear brake kit is specifically engineered to complement 13" and larger front brake upgrades, providing balanced braking performance when paired with wheel, tire, and suspension modifications. The narrow caliper design offers improved clearance for custom wheel fitments while delivering the stopping power demanded by high-performance street and show vehicles.