Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This anodized Wilwood Narrow Dynapro is the thin-pad four-piston configuration for a 0.25-inch-wide rotor. Its billet aluminum body uses 1.12-inch stainless pistons and an M10 x 1.25 inlet, making it a dimensionally specific radial caliper rather than a broad vehicle replacement. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications.
Technical Details
- Manufacturer part number: 120-17628. Type: Narrow Dynapro Radial Mount caliper.
- 4-piston hydraulic layout with 1.12/1.12-inch bores and 1.98 sq in of effective area; piston type: stainless steel.
- Nominal rotor width 0.25 inch; compatible width range 0.25 inch. Rotor diameter specification: 10.75–12.19 inches.
- 4.75-inch-center radial attachment, universal orientation. 0.39-inch holes; 1.61-inch mounting height.
- Hydraulic inlet thread: M10 x 1.25. Match the fitting thread and sealing arrangement to the brake hose.
- Type III Anodize finish on a billet aluminum body.
- Compatible pad profile 7812; confirm thickness and compound for the installation.
- Component: one individual hydraulic brake caliper. Select the mating rotor, pads, mounting hardware and line connection to suit the complete brake assembly.
- Piston dust boots: no.
- Caliper component weight: approximately 4.1 lb.
Fitment & Compatibility
Confirm the thin-pad arrangement and 7812 profile against the installed assembly. Check 4.75-inch radial centers, mounting height and the 10.75–12.19-inch rotor envelope, with the rotor width matched exactly to the listed 0.25-inch specification.
PMB Performance has over 20 years of brake-component experience. Send the existing caliper identification, rotor measurements and mounting details for help comparing this configuration.