Wilwood Left FSLI4 Four-Piston Brake Caliper, 1.88/1.75-Inch Bores / 1.25-inch Rotor Width: Gray Superlite caliper with white Wilwood lettering, a central bridge bolt and the upper pad opening visible.

Wilwood Left FSLI4 Four-Piston Brake Caliper, 1.88/1.75-Inch Bores / 1.25-inch Rotor Width

SKU: 120-11330

$274.18 Sale
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Fitment questions?

Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

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Product details

This left FSLI4 carries four differential stainless pistons in 1.88/1.75-inch bore groups. Its internal passages allow leading or trailing positioning while retaining the left-hand piston arrangement and nominal 1.25-inch rotor width. 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: 120-11330. Component: Forged Superlite Internal 4 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.
  • Mounting: lug, 3.50-inch centers; left hand orientation. Mount holes: 0.45 inch; height: 2.85 inches.
  • Rotor compatibility: nominal width 1.25 inch; diameter 11.75–13.06 inches. Specified rotor-width limits: 1.19–1.38 inch.
  • Caliper weight: approximately 5.2 lb.
  • Body: forged aluminum; finish: Type III anodize.
  • Hydraulic inlet thread: 1/8-27 NPT. Use a fitting with the correct thread and sealing seat.
  • Pistons: 4 stainless steel; bore specification: 1.88/1.75 inches. Effective piston area: 5.18 sq in.
  • Compatible brake pad shape: 7420; choose the required compound for the brake system.

Fitment & Compatibility

Use the correct wide-rotor bracket offset and 7420 pads. Confirm the 5.18-square-inch effective area and bleed orientation before connecting the caliper to the hydraulic circuit.

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.