Wilwood Red Left EPB Hi-Torque Caliper, 1.10-Inch Rotor Width, 4.75-Inch Lug Mount

Red powder coating finishes this left-hand Hi-Torque EPB parking caliper. The verified specification is the nominal 1.10-inch rotor opening, with 1.04–1.10-inch thickness limits. It is an individual electric parking component whose motor-driven operation is independent of the vehicle’s hydraulic service brakes. 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: 120-18232-RD
• Caliper type: Electric Parking Brake
• Construction: Aluminium / Steel
• Finish: Red Powder Coat
• Piston bores: 1.25 inches
• Piston type: Steel
• Mechanically driven piston count: 1
• Dust boots: No
• Nominal rotor width: 1.10 inch
• Rotor thickness limits: 1.04–1.10 inches
• Rotor diameter limits: 11.00–14.00 inches
• Mounting style: Lug
• Mounting side: Left Hand
• Mounting centers: 4.75 inches
• Mount height: 0.36 inch
• Actuation: Hi-Torque electric parking motor; 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: 5.0 lb

Fitment & Compatibility

Confirm the rotor opening by exact caliper reference when servicing the system, especially where neighboring EPB models use 1.25-inch rotor width. The receiving bracket needs 4.75-inch lug centers and the correct offset. Check the drive body against wheel and axle clearances, and verify a compatible controller and wiring arrangement before installation.

For help identifying the correct brake component, provide the caliper markings and installation dimensions. PMB Performance has over 20 years of experience with parts and brake-system details.