Fitment questions?
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Product details
This red MC4 provides a separate mechanical parking brake where a cable-operated caliper is required alongside the service brakes. The left-hand floating assembly includes parking pads and a mounting plate on 4.75-inch centers; its rotor-width configuration is nominally 1.10 inches. Cable movement acts through an adjustable lever mechanism, with a return spring and manual compensation for pad wear. Wilwood Engineering’s disc brake range includes calipers, rotors, master cylinders, valves, fittings and brake lines. Bill Wood founded the company in 1977 in California; it is based in Camarillo and serves motorsport, street-performance and specialized brake applications.
The MC4 is a separate cable-operated parking brake caliper, not a hydraulic service caliper. Its lever can be clocked in three positions for cable routing, with a return spring and a manual wear adjuster. The lever accepts a 0.310-inch barrel-ended cable.
Technical Details
- Manufacturer part number: 120-15485-RD
- Function: Separate mechanically operated parking brake caliper
- Mounting plate: 4.75-inch mounting centers
- Rotor width: 1.10-inch nominal; 0.99–1.10-inch range
- Construction: Die-cast aluminum body with a forged aluminum anvil
- Body finish: Red Powder Coat
- Cable pull: Left hand; lever clockable in three positions
- Rotor diameter: 11.00–14.00 inches
- Piston: 1.19-inch aluminum, dust booted
- Adjustment: Manual wear adjuster and cable return spring
- Included components: One caliper with mounting plate and parking brake pads
- Cable end: 0.310-inch barrel end
Fitment & Compatibility
A usable installation needs the cable to reach the left-hand lever without binding and to release completely when the parking brake is disengaged. Verify a 0.310-inch barrel end, select the appropriate lever position and center the caliper over a rotor within the 0.99–1.10-inch width range. Check the mounting plate and 11.00–14.00-inch rotor-diameter envelope independently of the vehicle’s hydraulic caliper; the MC4 has no brake-fluid connection.
Parking pads and the mounting plate are included. Match the parking brake cable, rotor position, bracket placement and cable routing to the vehicle.
PMB Performance’s team has over 20 years of experience with brake components and fitment. We can help review this caliper against the dimensions and hydraulic requirements of your brake system.
