Wilwood Right MC4 Anodized Parking Caliper, 0.31–0.39-Inch Rotor-Width Range: Gray mechanical MC4 housing with white lettering, a gold-toned straight mounting bracket and a raised cable lever.

Wilwood Right MC4 Anodized Parking Caliper, 0.31–0.39-Inch Rotor-Width Range

SKU: 120-17271

$197.75 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

A nominal 0.39-inch rotor channel distinguishes this right-hand Wilwood MC4 from the thinner powersports version. The floating assembly uses a mechanical cable, an aluminum piston and a steel mounting plate to provide a separate parking-brake function. Bill Wood established Wilwood Engineering in 1977. Based in Camarillo, California, the company designs and manufactures disc brake systems for motorsport, street-performance and specialized use, including calipers, brake rotors, master cylinders, valves, fittings and brake lines.

Technical Details

  • Manufacturer part number: 120-17271. Type: MC4 Mechanical caliper.
  • Actuation: parking-brake cable with a 0.310-inch barrel end. Manual wear adjustment and a cable return spring are provided.
  • Attachment geometry: floating mount with 4.75-inch centers; right hand. 0.67-inch holes.
  • Mechanical piston count: 1. Bore: 1.19 inch; piston material: aluminum. Cable applied, with dust boot: yes.
  • Rotor dimensions: outside diameter 11.00–14.00 inches; nominal width 0.39 inch, with width limits of 0.31–0.39 inch.
  • Construction and surface: die-cast aluminum body with a forged aluminum anvil, finished in Type III Anodize.
  • Caliper component weight: approximately 3.8 lb.
  • Pad fit uses shape 6407. Match the pad to the rotor and intended operating conditions.
  • Assembly: one mechanical parking caliper, supplied with pads, noise-control shields and a steel mounting bracket. The service-brake system is separate.

Fitment & Compatibility

Confirm actual rotor width falls within 0.31–0.39 inch and that its diameter suits the pad position. The bracket, cable barrel and lever travel must be matched to the vehicle; no hydraulic line connects to this mechanical caliper.

Manufacturer warning, brake pads only: Cancer and Reproductive Harm. P65Warnings.ca.gov.

For help matching this caliper, contact PMB Performance with the brake-package details and rotor measurements. Our team has more than 20 years of experience with brake parts and fitment.