Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
Red powder coat surrounds four 1.75-inch stainless pistons in this FNSL4R. The nominal 1.10-inch rotor-width model retains the narrow 7416 pad geometry with 4.80 square inches of effective piston area. 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: 120-11784-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.
- Mounting: radial, 5.98-inch centers; universal orientation. Mount holes: 0.39 inch; height: 1.45 inches.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
- Rotor compatibility: nominal width 1.10 inch; diameter 11.75–14.00 inches. Specified rotor-width limits: 1.00–1.10 inch.
- Caliper weight: approximately 5.0 lb.
- Body: forged aluminum; finish: Red powder coat.
- Pistons: 4 stainless steel; bore specification: 1.75 inches. Effective piston area: 4.80 sq in.
- Piston dust boots: not fitted.
- Compatible brake pad shape: 7416; choose the required compound for the brake system.
Fitment & Compatibility
Use the bore size and area, rather than the red finish, to identify the correct hydraulic version. Check the 5.98-inch mount centers and rotor offset against the intended bracket.
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.
