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PRODUCT DESCRIPTION
Product details
Combined Parking Brake
Wilwood’s hydromechanical Combined Parking Brake (CPB) caliper uses hydraulic pressure for stopping and a mechanical lock for parking brake engagement. This redesigned unit offers new options for drum to disc conversions and disc brake upgrades on rear axles not supported by internal shoe systems. This caliper, when paired with the proper rotor diameter, provides optimal brake balance for use in conjunction with front wheel brake upgrades.
The CPB features a single piston floating design that bolts to a fixed radial mount. The floating assembly allows the caliper to maintain perfect alignment as the cable actuated mechanical parking brake lock engages and disengages. The floating assembly also keeps the caliper properly aligned over the rotor and prevents excessive pad knock-back on C-clip rear axles with measurable side play. As the pads wear, the caliper remains centered over the rotor. The radial mount offers virtually unlimited mounting options. Mounting brackets to the axle flange can be configured to mount the caliper at any height within the compatible rotor diameter range, or at any clocking position relative to hat and rotor offset. The caliper is compatible with rotor diameters from 11.00” to 13.00” and is available in two models for either .81” or 1.00” wide rotors. Parking brake lock-up is cable actuated. Connections are made with common cable ends using a 1/2” cable housing end at the stop bracket and 1/8” to 9/64” cable with a crimped or welded ball end. The caliper accepts stock cable on some vehicles. For other vehicles, new cable ends can be ordered to adapt the caliper to the vehicle’s stock cable system. For custom installations, aftermarket hand brake kit suppliers can easily configure cable with the correct attachment end. id="MainContent_lblDimPistArea" class="Gray11B">2.06
Rotor Dimensions
| Rotor Width (in) | 0.81 |
| Rotor Diameter (in) | 13.00 |
Pad Dimensions
| Pad Area (in²) | 4 |
| Pad Volume (in³) | 1.5 |
Use & Material Rating
| Material | Aluminum/Steel |
| Weight (lbs) | 6.1 |
Colors & Finish
| Color | Black |
| Finish | Black Powder Coat |
Mounting
| Mounting Center (in) | 5.98 |
| Mounting Position | |
| Mounting Side | Right |
| Mounting Type | Radial |
Specifications
Rotor Compatibility
| Rotor Width (in) | 0.81 |
| Max Rotor Width (in) | 0.81 |
| Min Rotor Width (in) | 0.75 |
| Max Rotor Diameter (in) | 13.00 |
| Min Rotor Diameter (in) | 11.00 |
Brake Pad Specifications
| Brake Pad Type 1 | D340 |
| Brake Pad Type 2 | N-A |
| Brake Pad Type 3 | N-A |
| Total Pad Area (in²) | 4 |
| Total Pad Volume (in³) | 1.5 |
| Mounting |
Piston Specifications
| Piston Bore 1 (in) | 1.62 |
| Piston Bore 2 (in) | |
| Piston Bore 3 (in) | |
| Total Piston Area (in²) | 2.06 |
Mounting Specifications
| Mounting Side | Right |
| Mounting Center (in) | 5.98 |
| Mounting Hole Size (in) | 0.39 |
| Mounting Height (in) | 2.08 |
| Inlet Thread Size | M10 x 1.00 |
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