Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This thin-channel FNDL uses four equal 1.12-inch stainless pistons and a nominal 0.38-inch rotor width. Its 1.98-square-inch effective area is the small-bore hydraulic configuration of the Narrow Dynalite. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. It 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: 120-11577. Component: Forged Narrow Dynalite caliper.
- Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
- Compatible brake pad shape: 7816; 7216; choose the required compound for the brake system.
- Piston dust boots: not fitted.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
- Rotor compatibility: nominal width 0.38 inch; diameter 11.75–12.72 inches. Specified rotor-width limits: 0.25–0.38 inch.
- Pistons: 4 stainless steel; bore specification: 1.12 inches. Effective piston area: 1.98 sq in.
- Body: forged aluminum; finish: Type III anodize.
- Caliper weight: approximately 4.1 lb.
- Mounting: lug, 3.50-inch centers; universal orientation. Mount holes: 0.45 inch; height: 2.85 inches.
Fitment & Compatibility
Check the small piston area against the system's brake balance. The 3.50-inch lug pattern and selected 7816 or 7216 pads must place the friction material correctly on the rotor.
PMB Performance has over 20 years of brake-component experience. Send the existing caliper identification, rotor measurements and bracket details for help matching this configuration.
