Wilwood 120-13516-RD Powerlite Radial Mount Brake Caliper - 4-Piston Red

The Wilwood 120-13516-RD Powerlite is a high-performance 4-piston radial mount brake caliper finished in a bold red anodized coating. Engineered for sports, rally, and off-road driving applications, the Powerlite series delivers race-proven stopping power in a compact, lightweight package suitable for a wide range of performance builds.

Built using Wilwood's proprietary stress-flow forging process, the caliper body's internal grain structure is re-aligned to follow the contour of the caliper — eliminating the structural weaknesses that result from machining straight billet stock. The result is a caliper that is both lighter and stronger than conventional billet designs.

An FEA-generated radial transition design removes steps and shoulders between the piston housing body and the caliper bridges, dramatically increasing resistance to deflection and caliper separation under hard braking loads.

Key Features:

• 4-piston radial mount design with race-derived technology
• 1.00 in. diameter pistons for consistent, even clamping force
• Compatible with 0.350–0.500 in. thick rotors
• 1.00 in. mount spacing
• Stress-flow forged aluminum construction for superior strength-to-weight ratio
• FEA-optimized caliper bridge design resists flex and separation under load
• Red anodized finish for corrosion resistance and visual appeal
• Sold individually

The Wilwood Powerlite caliper is an ideal upgrade for performance street, autocross, rally, and light off-road applications where reduced unsprung weight and improved thermal durability are essential.