Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Type III Anodized finish and 1.38-inch bores distinguish this Wilwood Billet Narrow Dynalite Radial configuration. It is a 4-piston brake caliper for 1.00-inch-wide rotors, with 4.75-inch radial 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: 120-15564-SI
- Mounting: universal side configuration; Radial; 4.75-inch centers; 0.39-inch mounting holes
- Mount height: 1.24 inches
- Rotor width: 1.00-inch nominal; 0.94–1.00-inch permitted range
- Rotor diameter range: 11.75–12.19 inches
- Pad shape: Wilwood types 7816 / 7216; compound selected separately
- Piston arrangement: 4 pistons; 1.38-inch bores; stainless steel
- Hydraulic piston area: 3.00 square inches, as specified by Wilwood
- Body and finish: Billet aluminum; Type III anodized
- Fluid inlet: 1/8-27 NPT
- Dust boots: No
- Component: Wilwood Billet Narrow Dynalite Radial; one caliper
The Billet Narrow Dynalite radial caliper uses four stainless pistons, internal fluid transfer and type 7816 pads. Its 4.75-inch stud spacing differs from the 3.50-inch lug-mount Narrow Dynalite layout.
Fitment & Compatibility
Use the intended rotor and bracket dimensions to establish compatibility. The chosen pad compound, master-cylinder volume and brake balance must be considered with this caliper’s piston sizes.
This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.
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.
