Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The anodized right FNSL6R is a narrow forged six-piston radial caliper for a nominal 1.25-inch rotor width. Its differential 1.62/1.12/1.12-inch bore groups give 4.04 square inches of effective piston area. Wilwood Engineering is a Camarillo, California-based designer and manufacturer of disc brake systems, founded by Bill Wood in 1977. Calipers, brake rotors, master cylinders, valves, fittings and brake lines form its range for motorsport, street-performance and specialized applications.
Technical Details
- Manufacturer part number: 120-11778. Component: Forged Narrow Superlite 6 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.
- Piston dust boots: not fitted.
- 6 stainless steel pistons with 1.62/1.12/1.12-inch bore groups. The specified effective area is 4.04 sq in.
- Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
- Brake pad profile 7416; select friction material for the actual operating conditions.
- Caliper weight: approximately 5.0 lb.
- Type III anodize finish on a forged aluminum caliper body.
- 5.98-inch radial mounting pattern, right hand; mounting height 1.45 inches and hole size 0.39 inch.
- The rotor channel is specified for 1.25-inch nominal width. Rotor outside diameter: 11.75 to 14.00 inches. Specified rotor-width limits: 1.19–1.25 inch.
Fitment & Compatibility
Use the specified right-hand arrangement with 7416 pads. Check the 5.98-inch radial bracket and wide rotor centerline; the narrower pad format differs from the 7420-equipped FSL6R.
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.
