Wilwood 120-14091-BK Narrow DynaPro Four Piston Radial Mount Brake Caliper

The Wilwood Narrow DynaPro four-piston radial mount brake caliper delivers exceptional stopping power in a lightweight, high-strength package designed for sports, rally, and off-road applications. Weighing as light as 3.58 pounds, this caliper combines the versatility of radial mounting with a sleek profile and extreme durability in adverse conditions.

Advanced Manufacturing and Design:

• Stress-flow forged body re-aligns the internal grain structure of the metal to flow within the caliper contour, providing superior strength over machined billet or cast components
• FEA-generated body design features radial transitions between piston bores and caliper bridges, eliminating machined steps and shoulders in critical stress areas
• Engineered to resist deflection and body separation under high loads, ensuring a firm pedal and consistent performance
• Fits rotors up to 12.19" in diameter

Performance Features:

• Heavy-wall stainless steel pistons provide additional protection against corrosion and heat transfer from brake pads
• Compatible with optional Thermlock pistons for maximum thermal protection in sustained high-heat applications
• Stainless SRS bridge plates eliminate caliper bridge wear from pad gouging while dampening noise and vibration
• Internal fluid passages eliminate the need for external crossover tubes
• Four-corner bleed screws allow effective air evacuation regardless of mounting location

This black-finished caliper represents Wilwood's commitment to combining innovative engineering with proven performance for demanding braking applications.