Wilwood 140-17473 Powerlite Front Brake Kit with 4-Piston Calipers

The Wilwood 140-17473 is a complete front brake upgrade kit featuring Powerlite PL4R radial mount calipers with vented, plain face rotors designed for 1970-1972 Porsche 914/4 models. This kit combines forged aluminum four piston calipers, brackets, and hubs with oversize vented rotors to significantly upgrade braking performance.

Key Features:

• 11.38-inch diameter x 0.81-inch wide (289mm x 20mm) Spec37 proprietary iron alloy rotors with 36 curved vanes for heat dissipation
• Forged aluminum four-piston calipers that are lighter and stiffer than cast iron
• Includes BP-10 performance brake pads, stainless steel flexlines, and all necessary hardware
• Designed for use with factory spindles and requires a 914-6 or 911 19mm master cylinder
• Requires minimum 15-inch wheel diameter
• Reduces unsprung rotating mass by approximately 53% compared to stock cast iron brakes

This complete brake kit delivers stronger, cooler, and more durable braking performance while maintaining compatibility with OE hubs and factory balance. The plain face vented rotors provide excellent heat management and improved stopping power over the original solid factory rotors.