Fitment questions?
Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.
Product details
This left-hand rear HM2 combines a hydraulic caliper and mechanical parking mechanism for suitable utility-vehicle brakes. Its die-cast body carries one 1.19-inch piston and uses a floating 3.00-inch mounting format. The clear-finished component is selected by the installed rotor, bracket and cable arrangement, with no vehicle model inferred from its size. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company makes disc brake systems and components for motorsport, street-performance and specialized uses, including calipers, brake rotors, master cylinders, valves, fittings and brake lines; each component must match the requirements of the complete brake system.
Technical Details
- Manufacturer part number: 120-8842
- Caliper type: HM2 Hydra-Mechanical
- Construction: Cast Aluminium
- Finish: Clear Anodize
- Piston bores: 1.19 inches
- Piston type: Stainless
- Piston count: 1
- Published piston area: 1.06 square inches
- Dust boots: Yes
- Nominal rotor width: 0.19 inch
- Rotor thickness limits: 0.15–0.25 inches
- Rotor diameter limits: 6.00–11.20 inches
- Mounting style: Floating
- Mounting side: Left Hand
- Mounting centers: 3.00 inches
- Mounting-hole size: 0.67 inch
- Hydraulic inlet thread: M10 x 1.00
- Required pad shape: 6407
- Published pad area: 1.7 square inches
- Published pad volume: 0.26 cubic inches
- Manufacturer-listed component weight: 2.7 lb
Fitment & Compatibility
Verify that the left lever and cable can operate and return without interference. Rotor centerline and friction-track position must match the receiving bracket, as must thickness and diameter. Check the metric inlet fitting and wheel envelope, and identify the original utility brake package before using this as a service replacement.
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.
