• CP6859 - Concentric Slave Cylinder - Race and Rally
  • CP6859 - Concentric Slave Cylinder - Race and Rally
  • CP6859-1254 - Rear
  • CP6859-50
  • CP6859 - Concentric Slave Cylinder - Race and Rally
  • CP6859 - Concentric Slave Cylinder - Race and Rally
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CP6859 - Concentric Slave Cylinder

CP6859 - Concentric Slave Cylinder

CP6859-50

€431.22 €530.40
Sale Sold out
  • Feature Icon 18mm or 12mm Stroke Options
  • Feature Icon Supplied with Release Bearing
  • Feature Icon M10 x 1.00 Hydraulic Threads
  • Feature Icon No.1 Slave Cylinder being used
Bearing Fulcrum Diameter
Max Stroke
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Optional Extras

In stock
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CP6859 - Concentric Slave Cylinder

The CP6859 series of concentric slave cylinders offer a lightweight forged Aluminium body and are hydraulically self contained unit with high temperature seals.

All sealing surface are protected by a hard wearing / low friction coating which helps prolong seal life.

Features

  • Forged Aluminium Alloy Body
  • Aluminium Alloy Piston
  • 12mm or 18mm Max Stroke Options
  • CP6859-1238-IN or 1250-IN suitable for high speed applications.
  • Use with RBF 660, RBF 600 or high quality brake fluids
  • Cylinders are supplied with release bearing from a choice of four fulcrum diameters

CP6859 / CP3859 Difference

  • Hydraulic port geometry and thread now M10x1.00 (CP6859) was M12x1.00 (CP3959)
  • Reduced port height, now 44.92mm (CP6859) was 59.12mm (CP3959)

Technical Details:

 Weight
CP6859-XX 0.361 Kg
CP6859-12XX 0.257 Kg
CP6859-12XX-IN 0.346 Kg
Hydraulic Threads M10x1.00
Fitting Tightening Torque 28 Nm (21 ft/lb)
Effective Area 920mm2
Max Pressure 8.6N/mm2
Port Height 44.92mm


Part Numbers:

 Part Number

Release Bearing Fulcrum Diameter

Max Stroke

Release Bearing

Bearing Configuration
CP6859-14 Flat 18.0mm CP3457-22 4
CP6859-38 38.0mm 18.0mm CP3457-16 1
CP6859-45 45.0mm 18.0mm CP3457-19 5
CP6859-50 50.0mm 18.0mm CP3457-11 1
CP6859-54 54.0mm 18.0mm CP3457-6 1
CP6859-54-OUT 54.0mm 18.0mm CP3457-10 5
CP6859-1245 45.0mm 12.0mm CP3457-19 2
CP6859-1250 50.0mm 12.0mm CP3457-9 2
CP6859-1254 54.0mm 12.0mm CP3457-10 2
CP6859-1238-IN 38.0mm 12.0mm CP3457-16 3
CP6859-1245-IN 45.0mm 12.0mm CP3457-26 3
CP6859-1250-IN 50.0mm 12.0mm CP3457-11 3
CP6859-1254-IN 54.0mm 12.0mm CP3457-6 3


Bearing Configurations:

  1. Bearing Configuration 1: (18mm Stroke) - Inner Race Rotating
    This slave cylinder configuration features the bearing housed in the piston via the outer race and the inner race rotates. This configuration is suitable for high speed appliations.
  2. Bearing Configuration 2: (12mm Stroke) - Outer Race Rotating
    This slave cylinder configuration features a shortened stroke to reduce the overall slave cylinder body length. The bearing is housed on the piston via the inner race and the outer race rotates.
  3. Bearing Configuration 3: (12mm Stroke) - Inner Race Rotating
    This slave cylinder configuration features a shortened stroke to reduce the overall slave cylinder body length. The bearing is housed in the piston via the outer race. The inner race rotates, suitable for high speed applications. 
  4. Bearing Configuration 4: (18mm Stroke) - Flat Fulcrum Bearing
    This bearing is housed in the piston via the outer race with the inner race rotating, suitable for high speed applications.
  5. Bearing Configuration 5: (18mm Stroke) - Outer Race Rotating (CP6859-54-OUT)
    The bearing is housed on the piston via the inner race with the outer race rotating. 

Spare Parts

Item

Part Number
 Seal Kit CP3759-3
Hydraulic Outlet Fittings
7/16" UNF CP3759-6
305-04-31Z1
3/8" UNF CP3759-5
305-03-31Z1
Sealing Washer 44516

 

Spacers and Mounting Plates

 Description

Part Number

Image
6mm Spacer CSP-6 Concentric Clutch Slave Cylinder Spacer - 6mm - Race and Rally
9mm Spacer CSP-9 Concentric Clutch Slave Cylinder Spacer - 9mm - Race and Rally
15mm Spacer CSP-15 Concentric Clutch Slave Cylinder Spacer - 15mm - Race and Rally
Tractive Adaptor Plate CSM-TRACTVIE Tractive Hydraulic Clutch Mount - CP6859 Cylinder Fitment - Race and Rally
Quaife 60G Adaptor Plate CSM-60G Quaife 60G Hydraulic Clutch Mount - CP6859 Cylinder Fitment - Race and Rally

    Installation

    Ensure that the unit is installed in the correct position, with the bleed port uppermost as shown in the installation drawings. All fittings intended to seat at the bottom of the hydraulic ports must have an included angle of 90°.

    Notes

    When large diameter splines are used please check clearance of the spline in the slave cylinder body. Larger splines also have an increased driven plates hub boss. Please check the clearance of the driven plates at maximum slave travel. See the clutch installation drawing for details.

    Mineral oil versions of all the assemblies on this drawing are available, for further information see CP8084-1CD for mineral oil compatible assemblies in the Documents Download Tab.

    CP6859 supercedes CP3859 Cylinder series BUT IS NOT IDENTICAL. The differences between CP3859 & CP6859 can be identified by viewing this document: CP3859 - CP6859 Differences.

    Brand AP Racing
    Option SKU Barcode
    Ø50mm / 18.00mm CP6859-50
    Ø54mm / 12.00mm CP6859-1254
    Ø54mm / 18.00mm CP6859-54


    AP Racing is the leading manufacturer of performance brake and clutch systems for road and race cars. The core product range includes clutches, callipers, discs, pads, master cylinders, pedal boxes and air jacks, as well as road and competition brake systems for motorcycles.

    Being at the pinnacle of motor sport and OEM supply, numerous factors dictate the most specialised requirements for ultimate success. From the state of the art 3 dimensional solid modelling/design and Finite Element Analysis CAD facilities, to sophisticated research, development and testing including a special NVH and multiple other dynamometers that can simulate true racing speeds and the arduous of environments for road cars, AP Racing is constantly probing the boundaries of technology every working day.

    Race and Rally are the official AP Racing Distributor for Northern Ireland

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