Wilwood D154-R type iii anodized caliper, 1.04-inch rotor width, 2.00-inch bore: outer face with mounting ears and circular recesses

Wilwood Type III Anodized D154-R GM Metric Brake Caliper, 2.00-Inch Stainless Steel Piston

SKU: 120-14876

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Product details

For a brake system using a 1.04-inch-wide rotor, this Type III anodized Wilwood D154-R GM Metric provides 1 piston with 2.00-inch bore. The caliper attaches on 5.46-inch floating centers. Founded in 1977 by Bill Wood, Camarillo, California-based Wilwood Engineering manufactures disc brake components for motorsport, street-performance and specialized uses. Its range covers calipers, rotors, master cylinders, valves, fittings and brake lines.

Technical Details

  • Manufacturer part number: 120-14876
  • Component: Wilwood D154-R GM Metric; one caliper
  • Rotor width: 1.04-inch nominal; 0.81–1.04-inch permitted range
  • Rotor diameter range: 11.00–12.19 inches
  • Mounting: universal side configuration; Floating; 5.46-inch centers; 0.69-inch mounting holes
  • Mount height: 0.37 inches
  • Piston arrangement: 1 piston; 2.00-inch bore; stainless steel
  • Hydraulic piston area: 3.14 square inches, as specified by Wilwood
  • Pad shape: Wilwood type D154; compound selected separately
  • Body and finish: Forged aluminum; Type III anodized
  • Dust boots: No
  • Fluid inlet: 1/8-27 NPT

This forged aluminum floating caliper replaces the GM metric D154 layout in racing applications. Hardened Wilwood slide pins are required and sold separately; the centered inlet avoids interference with the slide-pin arrangement.

Fitment & Compatibility

Use the intended rotor and bracket dimensions to establish compatibility. The chosen pad compound, master-cylinder volume and brake balance must be considered with this caliper’s piston size. GM metric mounting requires hardened slide-pin kit 230-0619, sold separately. Verify the relevant race rules before installation.

This listing covers one caliper. Match the brake pads, rotor, hose and mounting arrangement to the complete brake system.

With over 20 years of experience, PMB Performance can help compare piston configuration and mounting geometry. Share the existing brake package and measured rotor dimensions before ordering.