Wilwood 120-15585 Forged DynaPro Low Profile Disc Brake Caliper 5.25in Mount Black Anodized

The Wilwood 120-15585 Forged DynaPro Low Profile (FDPLP-DS) disc brake caliper delivers a winning combination of advanced engineering and precision manufacturing. Stress-flow forged from premium-grade billet aluminum, this caliper benefits from a forging process that realigns the metal's grain structure to follow the contour of the body — producing a part with significantly superior strength compared to calipers simply machined from straight-grain billet blocks.

The FEA-generated body design features a highly fortified radial transition that eliminates the steps and shoulders between piston housings and bridges. This critical radius dramatically increases resistance to deflection and body separation under load. Structural deflection and fluid volume displacement testing confirm the efficiency of this design — less deflection means less fluid displacement, which translates to increased clamping efficiency, reduced pedal travel, and a firm, responsive pedal with outstanding stopping power.

Key Features:

• 5.25-inch mount spacing with black anodized finish for corrosion resistance and clean appearance
• Stress-flow forged billet aluminum body for superior strength-to-weight ratio
• Quick-E-Clip pad retainers support the 4812-type brake pads from the top, enabling fast pad service without caliper removal
• Slim low-profile design — bottom pad supports removed to reduce overall profile for tight-clearance applications
• Heavy-wall stainless steel pistons resist corrosion and slow heat transfer from pads, while the thick wall section resists backside deflection for consistent clamping performance
• Wilwood SRS (Shear Reaction Spring) bridge plates eliminate bridge wear from pad gouging, extend caliper service life, reduce pad rattle, and dampen vibration harmonics that contribute to brake squeal
• Internal fluid passages and four-corner bleed screws allow mounting in any position — front, rear, left, or right
• Compatible with power boost brake systems — heavy-wall pistons maintain efficiency at elevated line pressures

The Wilwood FDPLP-DS caliper is engineered for performance builds where space is at a premium without sacrificing braking power. Its versatile mounting orientation and tool-friendly pad service design make it a practical choice for street performance, track, and custom applications.