Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Red powder coat finishes this symmetrical-bore Narrow Superlite 4. Four 1.12-inch stainless pistons provide a 1.98-square-inch effective area across a nominal 1.10-inch-wide rotor. From its base in Camarillo, California, Wilwood Engineering designs and manufactures disc brake systems and components. Founded by Bill Wood in 1977, its range includes calipers, brake rotors, master cylinders, valves, fittings and brake lines for motorsport, street-performance and specialized applications.
Technical Details
- Manufacturer part number: 120-11782-RD. Component: Forged Narrow Superlite 4 Radial Mount caliper.
- Supply: one brake caliper, not a complete axle brake kit. Match the mating rotor, pads, bracket and connection hardware to the installation.
- Caliper weight: approximately 5.0 lb.
- Pistons: 4 stainless steel; bore specification: 1.12 inches. Effective piston area: 1.98 sq in.
- Compatible brake pad shape: 7416; 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.
- Mounting: radial, 5.98-inch centers; universal orientation. Mount holes: 0.39 inch; height: 1.45 inches.
- Body: forged aluminum; finish: Red powder coat.
- Rotor compatibility: nominal width 1.10 inch; diameter 11.75–14.00 inches. Specified rotor-width limits: 1.00–1.10 inch.
Fitment & Compatibility
Check the 7416 pads and 5.98-inch radial mounting relationship. The four-piston body can serve either side when bled correctly, but it still needs a bracket and rotor specifically matched to its geometry.
With 20+ years of experience, PMB Performance can help compare the actual brake hardware. Supply the caliper number, rotor dimensions and mounting measurements when asking about compatibility.
