Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
The anodized right-hand Hi-Torque EPB is the nominal 1.10-inch rotor-width version of this electric parking caliper. Its motor applies parking force independently of hydraulic service pressure. A 4.75-inch lug interface positions the component on a suitable bracket, with the published rotor diameter envelope extending from 11.00 to 14.00 inches. Founded in 1977 by Bill Wood, Wilwood Engineering is based in Camarillo, California. Its disc brake systems and components serve motorsport, street-performance and specialized applications. Calipers, brake rotors, master cylinders, valves, fittings and brake lines are among its products, selected according to the complete brake system’s requirements.
Technical Details
- Manufacturer part number: 120-18231
- Caliper type: Electric Parking Brake
- Construction: Aluminium / Steel
- Finish: Type III Anodize
- 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: Right 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 that the rotor measures within 1.04–1.10 inches thick, then establish bracket offset and pad alignment. This opening should not be confused with the separate 1.25-inch EPB variant. Check the exact motor’s electrical requirements and controller compatibility, plus clearance for the drive body, connector and wiring within the wheel assembly.
PMB Performance brings over 20 years of brake and parts experience to selection questions. Send the existing caliper reference and brake-package details for help checking compatibility.
