Wilwood 120-17192-BK Narrow DynaPro Four-Piston Radial Mount Disc Brake Caliper

The Wilwood Narrow DynaPro four-piston radial mount caliper delivers exceptional stopping power with a sleek, lightweight design weighing just 3.58 pounds. This high-performance caliper combines the versatility of radial mounting with superior strength and extreme durability, making it an ideal choice for sports, rally, and off-road driving applications.

Advanced Stress-Flow Forging Process:

The DynaPro's exceptional strength comes from its stress-flow forging manufacturing process, which re-aligns the internal grain structure of the metal to flow within the contour of the caliper body. This produces a component with significantly greater strength compared to machined billet or cast parts. The FEA-generated body design features a radial transition between piston bores and caliper bridges, eliminating machined steps and shoulders in critical stress areas to substantially increase resistance against deflection and body separation under high loads.

Key Features:

• Four-piston radial mount design for versatile installation options
• Fits rotors up to 12.19 inches in diameter
• Heavy-wall stainless steel pistons provide superior corrosion resistance and reduced heat transfer
• Stainless steel SRS bridge plates eliminate caliper bridge wear from pad gouging
• Internal fluid passages eliminate the need for external crossover tubes
• Four-corner bleeder screws allow effective air evacuation regardless of mounting location
• Optional Thermlock pistons available for maximum thermal protection in sustained high-heat applications
• Black anodized finish for durability and appearance

Structural deflection and volume displacement testing have proven the efficiency of this innovative design, delivering a firm pedal feel with outstanding stopping power in demanding conditions.