Wilwood Right Rear HM2 Hydra-Mechanical Caliper, 1.19-Inch Piston and 3.00-Inch Mount: ribbed metal body, mounting carrier and circular piston area
Wilwood Right Rear HM2 Hydra-Mechanical Caliper, 1.19-Inch Piston and 3.00-Inch Mount: rear cable lever, return spring and ribbed housing detail
Wilwood Right Rear HM2 Hydra-Mechanical Caliper, 1.19-Inch Piston and 3.00-Inch Mount: ribbed metal body, mounting carrier and circular piston area
Wilwood Right Rear HM2 Hydra-Mechanical Caliper, 1.19-Inch Piston and 3.00-Inch Mount: rear cable lever, return spring and ribbed housing detail

Wilwood Right Rear HM2 Hydra-Mechanical Caliper, 1.19-Inch Piston and 3.00-Inch Mount

SKU: 120-8841

$116.68 Sale
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Fitment questions?

Call (855) 786-7101 or text (801) 304-3141. We check fitment by VIN.

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Product details

The right-hand HM2 is a rear utility-vehicle caliper with hydraulic service braking and a mechanical parking lever. A single 1.19-inch piston works in the die-cast aluminum housing. Its floating mounting arrangement and thin rotor configuration must match the existing utility brake package rather than a general road-car application. Based in Camarillo, California, Wilwood Engineering was founded by Bill Wood in 1977. The manufacturer produces disc brake systems and components for motorsport, street-performance and specialized applications, with a range covering calipers, brake rotors, master cylinders, valves, fittings and brake lines. Individual components are chosen to suit the complete brake system.

Technical Details

  • Manufacturer part number: 120-8841
  • 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: Right 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

Check the 3.00-inch mount centers, rotor offset and the parking-cable approach on the right-hand installation. Compare rotor thickness and diameter with the selected part’s limits. The hydraulic connection is M10 x 1.00; both the fluid circuit and mechanical lever need correct routing and clearance through the caliper’s operating movement.

PMB Performance has over 20 years of experience helping customers with brake and parts fitment. Share the installed component identification and relevant measurements when requesting assistance.