Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The black Forged Superlite Internal caliper combines four 1.38-inch stainless pistons with internal fluid passages. It is sized for a nominal 0.81-inch-wide rotor and uses the 7420 pad shape under a removable center bridge bolt. 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: 120-11128-BK. Component: Forged Superlite Internal caliper.
- Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
- Body: forged aluminum; finish: Black powder coat.
- Piston dust boots: not fitted.
- Rotor compatibility: nominal width 0.81 inch; diameter 11.75–13.06 inches. Specified rotor-width limits: 0.75–0.84 inch.
- Pistons: 4 stainless steel; bore specification: 1.38 inches. Effective piston area: 3.00 sq in.
- Mounting: lug, 3.50-inch centers; universal orientation. Mount holes: 0.45 inch; height: 2.85 inches.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
- Caliper weight: approximately 5.2 lb.
- Compatible brake pad shape: 7420; choose the required compound for the brake system.
Fitment & Compatibility
Use the 3.00-square-inch piston area to check hydraulic compatibility. Bracket offset must center this narrow channel over the rotor, while the wheel needs clearance around both the body and inlet fitting.
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.
