Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Four 1.38-inch stainless pistons give this thin-rotor Narrow Dynalite a 3.00-square-inch effective area. The Type III anodized body has a nominal 0.38-inch rotor-width channel and accepts 7816 or 7216 pads. Bill Wood founded Wilwood Engineering in 1977, and the company is based in Camarillo, California. It designs and manufactures disc brake systems and a component range of calipers, brake rotors, master cylinders, valves, fittings and brake lines serving motorsport, street-performance and specialized installations.
Technical Details
- Manufacturer part number: 120-11574. 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.
- Piston dust boots: not fitted.
- Pistons: 4 stainless steel; bore specification: 1.38 inches. Effective piston area: 3.00 sq in.
- Rotor compatibility: nominal width 0.38 inch; diameter 11.75–12.72 inches. Specified rotor-width limits: 0.25–0.38 inch.
- Caliper weight: approximately 4.1 lb.
- Compatible brake pad shape: 7816; 7216; choose the required compound for the brake system.
- Mounting: lug, 3.50-inch centers; universal orientation. Mount holes: 0.45 inch; height: 2.85 inches.
- Body: forged aluminum; finish: Type III anodize.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
Fitment & Compatibility
Use the actual rotor sweep and 3.50-inch bracket measurements to check compatibility. Confirm the small-body caliper's hydraulic requirements rather than identifying the brake by rotor thickness alone.
For a replacement or custom installation, send PMB Performance the brake dimensions and existing component identification. Our 20+ years of experience can help narrow down the correct combination.