Wilwood 120-9703-RD Powerlite Radial Mount 4-Piston Caliper (Red)

Vehicle Fitment

• Universal Performance Caliper - Designed for custom brake systems on cars, trucks, street rods, competition vehicles, and other applications where a radial-mount 4-piston caliper is compatible.

Fitment Note: This is a universal brake caliper without specific OEM year/make/model vehicle fitment. Compatibility depends on rotor size, mounting bracket, hub spacing, and brake architecture. Sold individually.

Features

• Wilwood Powerlite series high-performance radial-mount 4-piston caliper
• Forged aluminum construction for strength with reduced weight
• Quick-clip brake pad retainers for easy pad changes
• SRS stainless bridge plates for reduced noise and pad wear
• Radial mount design improves stiffness and brake modulation
• Red powder-coat finish for durability and corrosion resistance
• Four-corner bleed screws for flexible bleed positioning
• Compatible with a wide range of rotor sizes and custom brackets

Specifications

• Part Number: 120-9703-RD
• Caliper Series: Powerlite Radial Mount
• Piston Quantity: 4
• Piston Diameter: 1.38 in (35.1 mm)
• Total Piston Area: Approx. 3.00 in²
• Rotor Diameter Range: 9.45"-11.00" (application dependent)
• Rotor Thickness Compatibility: 0.79"-0.86"
• Mount Type: Radial mount (universal)
• Mount Centerline: Approx. 5.08 in
• Inlet Thread: 1/8-27 NPT
• Finish: Red Powder Coat
• Sold Individually: Yes

Included Components

• 1x Wilwood 120-9703-RD Powerlite Radial Mount Caliper (Red)

Product Description

The Wilwood 120-9703-RD Powerlite Radial Mount Brake Caliper is a high-performance universal caliper engineered for custom brake systems and performance builds. Its forged aluminum body delivers exceptional strength and low weight, improving brake response and reducing unsprung mass. The radial mount design enhances caliper rigidity and modulation, making it suitable for motorsport, street, and custom applications where a radial mount caliper with tailored bracketry is used.

Equipped with four stainless steel pistons and Quick-clip pad retainers, this caliper provides strong, predictable stopping power and simplifies brake pad changes. Stainless SRS bridge plates help reduce noise and pad wear, while four-corner bleed screws allow flexible bleeding orientation. The vibrant red powder-coat finish not only protects the caliper from corrosion but also adds a standout look to any custom brake setup. Always verify rotor diameter, thickness, and mounting dimensions before installation to ensure fitment compatibility for your specific build.