Wilwood Left Red MC4 Caliper, Floating Mount, 1.19-Inch Bore

Select this red left Wilwood MC4 mechanical parking brake caliper by the actual floating mounting geometry, not just its appearance. The 1-piston unit uses 1.19-inch bore dimensions and is configured around a 1.10-inch-wide rotor. MC4 is a separate cable-operated parking caliper with a manual wear adjuster and return spring. Its lever accepts a 0.310-inch barrel-ended cable and can be clocked for routing. Pads and the caliper mounting plate are supplied; parking cables and a vehicle-specific conversion are separate. Based in Camarillo, California, Wilwood Engineering has its origins in the company Bill Wood founded in 1977. Its designs and manufactured disc brake products cover calipers and rotors alongside master cylinders, valves, fittings and lines. Motorsport, street-performance and specialized installations each require components selected for the complete system.

Technical Details

• Manufacturer part number: 120-17144-RD
• Component: MC4 Mechanical; one individual caliper
• Placement: Left
• Construction and finish: Cast aluminum; Red Powder Coat
• Mounting interface: Floating; mounting centers 2.00 inches
• Mounting-hole diameter: 0.67 inches
• Hydraulic inlet: none; this is a separate parking caliper
• Nominal rotor width: 1.10 inches
• Rotor width range: 0.99–1.10 inches
• Rotor diameter range: 11.00–14.00 inches
• Caliper weight reference: 3.8 lb
• Pistons: 1; aluminum; bore dimensions 1.19 inches
• Actuation: mechanical cable with manual wear adjustment
• Dust boots: Yes
• Brake pad shape: 6407; shape number does not specify a friction compound

Supplied as one mechanical caliper with pads and its mounting plate. The parking cable and any vehicle-specific mounting adapters are separate.

Fitment & Compatibility

Confirm the cable pull direction, the 2.00-inch offset mounting plate and the rotor centerline. Check that the cable has the required 0.310-inch barrel end and that the lever can return fully. This is one parking caliper; it does not replace the hydraulic service caliper.

Wilwood caliper specifications · Wilwood technical reference

For help selecting the correct caliper, contact PMB Performance with the brake package and measured mounting arrangement. Our over 20 years of parts and fitment experience supports a configuration check before purchase.