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Product details
The red left-hand MC4 is a standalone cable parking brake component for a rotor of nominal 0.81-inch width. Its die-cast housing and forged anvil clamp the pads mechanically, using a return-sprung lever instead of brake-fluid pressure. The steel mounting bracket, pads and noise-control shields are included with the individual caliper. Bill Wood founded Wilwood Engineering in 1977; the company is based in Camarillo, California. Wilwood designs and manufactures disc brake systems and components, from calipers and brake rotors to master cylinders, valves, fittings and brake lines, for motorsport, street-performance and specialized applications; selection depends on the complete brake system.
Technical Details
- Manufacturer part number: 120-18267-RD
- Caliper type: MC4 Mechanical
- Construction: Cast Aluminium
- Finish: Red Powder Coat
- Piston bores: 1.19 inches
- Piston type: Aluminum
- Mechanically driven piston count: 1
- Dust boots: Yes
- Nominal rotor width: 0.81 inch
- Rotor thickness limits: 0.70–0.81 inches
- Rotor diameter limits: 11.00–14.00 inches
- Mounting style: Floating
- Mounting side: Left Hand
- Mounting centers: 4.75 inches
- Mounting-hole size: 0.67 inch
- Actuation: Cable-operated parking mechanism; no hydraulic inlet
- Required pad shape: 6407
- Published pad area: 1.7 square inches
- Published pad volume: 0.26 cubic inches
- Manufacturer-listed component weight: 3.3 lb
- Supplied components: Individual caliper, parking pads with noise shields and steel mounting bracket
- Cable interface: 0.310-inch-diameter barrel end; confirm cable travel and routing
Fitment & Compatibility
Check the exact MC4 version when replacing a parking caliper because both mount spacing and rotor opening vary across the range. This unit requires a 4.75-inch bracket interface and a rotor 0.70–0.81 inch thick. Establish cable pull direction, 0.310-inch barrel-end compatibility and clearance around the wheel, axle and suspension.
With over 20 years of parts experience, PMB Performance can help compare this component with your existing brake assembly. Include its caliper reference and any conversion-kit information.
Brake-pad warning: Cancer and Reproductive Harm. www.P65Warnings.ca.gov. This warning applies to the brake pads.
