Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This red Superlite Internal combines the wide nominal 1.25-inch rotor-width channel with four 1.62-inch stainless bores. Internal passages connect the caliper halves, and the 7420 pads are held by the center bridge assembly. For motorsport, street-performance and specialized braking applications, Wilwood Engineering designs and manufactures calipers, brake rotors, master cylinders, valves, fittings and brake lines. The disc brake company was founded by Bill Wood in 1977 and is based in Camarillo, California.
Technical Details
- Manufacturer part number: 120-11133-RD. 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.
- Bracket interface: 3.50-inch lug centers with 0.45-inch holes. Specified mount height: 2.85 inches; orientation: universal.
- Piston dust boots: not fitted.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
- Bore configuration 1.62 inches across 4 pistons; piston material: stainless steel. Hydraulic effective area: 4.12 square inches.
- Construction and surface: forged aluminum housing finished in Red powder coat.
- Pad fit is type 7420. Match the pad dimensions and compound to the rotor and intended braking conditions.
- Caliper weight: approximately 5.2 lb.
- Nominal rotor width 1.25 inch; compatible outside diameter from 11.75 through 13.06 inches. Specified rotor-width limits: 1.19–1.38 inch.
Fitment & Compatibility
Check the 4.12-square-inch piston area against the rest of the braking system. Match the 3.50-inch lug centers and actual rotor sweep before choosing a replacement configuration.
PMB Performance has worked with brake components for over 20 years. Share the required piston sizing, rotor measurements and bracket drawing for help checking the match.
