HM Hydra-Mechanical Caliper – Part No: 120-8842
Call (805) 388-1188
HM2 Hydra-Mechanical
Prod #: 120-8842
Price: $110.68
Available Caliper #120-8842 Configurations
HM2 Hydra-Mechanical - Product Summary
Caliper No: 120-8842
HM2 Hydra-Mechanical

Pistons
Piston Count 1
Piston Area (in²) 1.06
Piston Type Stainless
Dust Boot Yes
Rotor Dimensions
Rotor Width (in) 0.19
Rotor Diameter(in) 11.20
Pad Dimensions
Pad Area (in²) 1.7
Pad Volume (in³) 0.26
Duty Rating & Material
Material Cast Aluminium
Weight(Lbs) 2.7
Colors & Finish
Color Clear
Finish Clear Anodize

Mounting
Mount Center(in) 3.00
Mount Position
Mount Side Left Hand
Mount Type Floating
UPC Number
UPC 889545006414
Product Documents
Product Data Sheet

Installation Instructions




WARNING: Cancer and Reproductive Harm
www.P65Warnings.ca.gov
Applicable to Brake Pads Only

120-8842 - Product Description

HM2 Hydra-Mechanical

Wilwood's HM series Hydra-Mechanical calipers are the perfect rear caliper for utilty vehicles. HM calipers offer options of both left-hand and right-hand units, with piston sizing of either 1.00" or 1.19. HM calipers utilizes a cost effective die cast construction with advanced design and manufacturing techniques which results in a rigid, lightweight and durable caliper.


Vehicle Applications
Driving Environment Power Sports
Vehicle Sub-Types ATV, Snowmobile
Application Duty Medium Duty
Driving Environment Industrial
Vehicle Sub-Types
Application Duty Medium Duty

Product Specifications

Rotor Compatibility
Rotor Width (in) 0.19
Maximum Rotor Width (in) 0.25
Minimum Rotor Width (in) 0.15
Maximum Rotor Diameter(in) 11.20
Minimum Rotor Diameter(in) 6.00

Brake Pad Specifications
Brake Pad Type 1 6407
Brake Pad Type 2 N-A
Brake Pad Type 3 N-A
Total Pad Area (in²) 1.7
Total Pad Volume (in³) 0.26
Mount
Piston Specifications
Piston 1 Bore (in) 1.19
Piston 2 Bore (in)
Piston 3 Bore (in)
Total Piston Area (in²) 1.06

Mounting Specifications
Mount Type Floating
Mount Side Left Hand
Mount Center(in) 3.00
Mount Hole Size(in) 0.67
Mount Height(in)
Inlet Thread Size M10 x 1.00
Pad Dimensions & Part Numbers
Pad Dimensions for the HM2 Hydra-Mechanical Pad Dimensions for the HM2 Hydra-Mechanical Zoom Image
Axle Set P/N
Pad Type
Compound
Non-Bedded Pads - by Compounds
150-8990K
6407
BP-10
150-15798K
6407
CM - Composite Metallic
150-7644K
6407
CM - Composite Metallic
150-7646K
6407
CM - Composite Metallic
Mount Dimensions & Part Numbers

Dimensions for the HM2 Hydra-Mechanical Dimensions for the HM2 Hydra-Mechanical Zoom Image

Additional Notes


Parts & Accessories

O-Ring Kit 130-4320
Replacement Dust Boot 210-6391
Replacement Piston 1 200-8660
Replacement Piston 2 N-A
Replacement Piston 3 N-A
Replacement Piston 4 N-A
Cross-Over O-Ring Kit N-A
Bridge Bolt Kit N-A
Wear Plate L/H N-A
Wear Plate R/H N-A
Pad Retainer N-A
Bleed Screw Kit 220-6069
Self Bleeder Tube N-A
Cross-Over Tube N-A
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Version: 3.05 June 23, 2023