Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Red finish and 1.75-inch bores distinguish this Wilwood Dynapro Dust-Boot configuration. It is a 4-piston brake caliper for 1.00-inch-wide rotors, with 5.25-inch lug attachment centers. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components, including calipers, rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications.
Technical Details
- Manufacturer part number: 120-15131-RD
- Component: Wilwood Dynapro Dust-Boot; one caliper
- Rotor width: 1.00-inch nominal; 0.94–1.04-inch permitted range
- Rotor diameter range: 10.00–13.06 inches
- Mounting: universal side configuration; Lug; 5.25-inch centers; 0.39-inch mounting holes
- Mount height: 2.10 inches
- Piston arrangement: 4 pistons; 1.75-inch bores; aluminum
- Hydraulic piston area: 4.80 square inches, as specified by Wilwood
- Pad shape: Wilwood type 7812; compound selected separately
- Body and finish: Forged aluminum; Red Powder Coat
- Dust boots: Yes
- Fluid inlet: 1/8-27 NPT
Fitment & Compatibility
Compare the existing caliper’s piston area, rotor capacity and mounting pattern. Matching the body family alone does not guarantee that the replacement will clear the wheel or preserve pedal travel.
This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.
The dust-booted Dynapro uses aluminum pistons protected from road or track debris by external boots. Wilwood specifies this construction for low to intermediate temperature applications; select a different piston and seal arrangement if the operating temperature demands it.
PMB Performance has over 20 years of brake and parts experience. Send us the caliper specifications, rotor measurements and bracket details if you need help selecting the correct component.
