Wilwood 120-10112-6 Radial Mount Combination Parking Brake Caliper, Left, 1 Piston, Black.

Combined Parking Brake

Wilwood’s combined parking brake (CPB) hydra-mechanical caliper uses hydraulic pressure for braking and a mechanical lock for parking brake engagement. This re-engineered unit offers new options for drum-to-disc conversions and disc brake upgrades on rear axles not compatible with internal shoe systems. This caliper, when matched with the proper rotor diameter, provides optimal braking balance for use in conjunction with front wheel brake improvements.

The CPB features a single-piston floating design that attaches to a fixed radial mount bracket. The floating mount allows the caliper to maintain perfect alignment when the cable actuated mechanical parking brake lock is engaged and disengaged.

The floating bracket also keeps the caliper properly aligned over the rotor and prevents excessive pad knock-back on C-clip rear axles with measurable end play. As pads wear, the caliper remains centered over the rotor. Radial mounting offers virtually unlimited attachment options. Mounts from the axle flange can be configured to attach the caliper at any height within the compatible rotor diameter range, or at any clock position relative to the 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 is cable actuated. Connections are made with common cable ends using a 1/2” cable housing end at the stop bracket and a 1/8” to 9/64” cable with a swaged or soldered ball end. The caliper accepts original cable on some vehicles. For other vehicles, new cable ends may be ordered to adapt the caliper to the vehicle’s original cable system. For custom installations, aftermarket hand brake kit suppliers can easily configure the cable with the correct attachment end. id="MainContent_lblDimPistArea" class="Gray11B">2.06 Piston Type Steel Dust Boot Yes

Rotor Dimensions

Rotor Width (in)	0.81
Rotor Diameter (in)	13.00

Pad Dimensions

Pad Area (in²)	4
Pad Volume (in³)	1.5

Use and Material Rating

Material	Aluminum/Steel
Weight (lbs)	6.1

Colors and Finish

Color	Black
Finish	Black Powder Coat

Mounting

Mounting Center (in)	5.98
Mounting Position
Mounting Side	Left
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

Radial

Mounting Side	Left
Mount Center (in)	5.98
Mount Hole Size (in)	0.39
Mount Height (in)	2.08
Inlet Thread Size	M10 x 1.00