Wilwood 140-17003 Forged Narrow Dynapro Radial Rear Disc Brake Kit

The Wilwood 140-17003 Forged Narrow Dynapro Radial (NDPR-P) rear disc brake kit is engineered for high-performance street and track use. Designed with a direct bolt-on fit using 3.50" radial caliper mounts, this complete rear brake kit requires no additional brackets or adapters for installation.

At the heart of the kit are forged aluminum 4-piston NDPR-P calipers featuring stainless steel pistons to slow heat transfer and resist corrosion. The narrow profile forged construction resists flex under hard braking while keeping unsprung weight to a minimum. A quick-clip pad retainer system allows rapid pad changes and helps maintain clearance within smaller diameter wheels.

Key Features:

• Caliper Type: Forged Narrow Dynapro-P (NDPR-P) 4-piston, radial mount — available in powder coat finish
• Rotor Size: 11.42" x 0.95" vented one-piece rotors — available in plain face or SRP drilled & slotted with protective e-coat finish
• Rotor Material: Proprietary alloy iron for superior thermal performance and durability
• Brake Pads: BP-10 compound Smart Pads — engineered for positive pedal response, long service life, high fade resistance, and easy cleaning
• Caliper Mounting Bolt Spacing: 3.50" (88.9mm)
• Minimum Wheel Diameter: 15 inches
• Hardware Included: Braided stainless steel flexlines, mounting hardware, pads, rotors, and calipers

This kit installs directly onto the rear struts without the need for supplemental brackets or adapters, making it a true bolt-on performance upgrade. The BP-10 Smart Pads deliver consistent, fade-resistant braking feel whether on the street or at the track. Rotor surface options allow builders to tailor braking performance and visual style to their build goals.