Wilwood 120-17460 Forged DynaPro Low Profile Lug Mount 4-Piston Disc Brake Caliper

The Wilwood Forged DynaPro Low Profile Lug Mount (FDP-LP) is a next-generation 4-piston billet brake caliper engineered as a direct upgrade or drop-in replacement for applications previously using the Dynalite caliper series. Purpose-built for installations with limited outboard rotor hat clearance and narrow swept area rotors, this caliper blends pure race technology with a slim, competition-ready profile suitable for both track and show use.

Stress-Flow Forged Billet Construction

Unlike calipers machined from straight-grain billet blocks, the FDP-LP body is stress-flow forged from premium-grade aluminum billet. This process realigns the metal's grain structure to follow the contours of the body, producing significantly greater strength and fatigue resistance throughout the entire caliper.

FEA-Optimized Body Design

The body geometry is derived from Finite Element Analysis (FEA), incorporating a highly fortified radial transition that eliminates the steps and shoulders between piston housings and bridges. This radius substantially increases resistance to deflection and caliper body separation under high braking loads. The result is reduced fluid volume displacement, improved clamping efficiency, and a firm, responsive pedal feel with outstanding stopping power.

Key Features:

• Mount Spacing: 5.25 inches lug mount
• Piston Size: 1.38-inch diameter heavy-wall stainless steel pistons (4 total)
• Rotor Thickness: Designed for .50-inch disc
• Quick-E-Clip pad retainers support 4812-type brake pads from the top for fast pad service without caliper removal
• Slimmed lower profile — bottom pad supports removed to allow fitment in tight clearance applications
• Heavy-wall stainless steel pistons resist corrosion, reduce heat transfer from pads, and resist backside deflection under power-boost brake pressures
• Wilwood SRS (Stainless Rattle Spring) bridge plates eliminate bridge wear from pad gouging, prevent pad rattle, and dampen vibration harmonics that contribute to brake squeal
• Internal fluid passages with four-corner bleed screws allow mounting in any front, rear, left, or right position
• Forged machined finish — available in multiple color options
• Instructions included

The Wilwood 120-17460 FDP-LP caliper is sold individually and is compatible with 11- to 13.06-inch brake rotors, making it an excellent performance upgrade for racing, street performance, and restomod builds requiring a low-profile brake package.