Wilwood 140-15348 Rear Disc Brake Kit with Parking Brake - FNSL4R-MC4

The Wilwood FNSL4R-MC4 Big Brake Rear Axle Kit provides a complete rear disc brake upgrade solution with integrated parking brake functionality for late model high-performance vehicles. This kit is engineered to complement front big brake upgrades while maintaining compatibility with OE master cylinders and ABS systems.

Key Features:

• FNSL4R forged narrow superlite calipers with high clamping force
• Oversized 14.00-inch diameter rotors for increased thermal capacity
• MC4 mechanical parking brake assembly for effective parking brake actuation
• BP-10 compound brake pads for improved stopping power and durability
• Matched bias tuning for proper brake balance with OE master cylinder output
• Full ABS compatibility maintains factory safety systems
• Complete bolt-on kit includes all mounting hardware and brackets

This rear brake kit is ideal for customized vehicles with big wheel and tire packages, suspension upgrades, or increased performance demands. The MC4 parking brake mechanism integrates seamlessly with the caliper design, eliminating the need for separate drum-style parking brakes while providing reliable holding force. The larger rotor diameter and high-performance pad compound deliver enhanced thermal management and fade resistance during aggressive driving.