• CP6859 - Concentric Slave Cylinder - Race and Rally
  • Tractive Hydraulic Clutch Mount - CP6859 Cylinder Fitment - Race and Rally
  • Tractive Hydraulic Clutch Mount - CP6859 Cylinder Fitment - Race and Rally
  • Push Type Slave Cylinder Ø54mm - 12mm Stroke - Race and Rally
  • CP6859-1254 - Rear
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AP Racing Hydraulic Slave Cylinder Kit for Tractive Gearbox

AP Racing Hydraulic Slave Cylinder Kit for Tractive Gearbox

€500.45 €615.55 €448.50 €551.66
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  • Feature Icon High Performance Kit
  • Feature Icon Complete with Tractive Gearbox Mount
Slave Cylinder Max Stroke

Optional Extras

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AP Racing Hydraulic Slave Cylinder Kit
- for Tractive Gearbox

Complete AP Racing hydraulic concentric slave cylinder kit for Tractive Gearboxes. This kit fits straight onto the Tractive gearbox with RandR slave cylinder spacers available seperately to help refine the spacing distance between release bearing and clutch assembly. 

This kit pairs perfectly with AP Racing Clutch Assemblies.

  • Maintenance free
  • Proven product, UK, Ireland and Worldwide
  • High quality, high temperature seals within unit

Included in Kit:

  • 1x RandR Tractive Slave Cylinder Adaptor Plate
  • 1x AP Racing CP6859 Concentric Slave Cylinder (Ø54mm Bearing)
  • 3x M6 x 20mm socket cap bolts
  • 3x M6 washers

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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
CP6859-50 50.0mm 18.0mm CP3457-11 1
CP6859-54 54.0mm 18.0mm CP3457-6 1
CP6859-1250 50.0mm 12.0mm CP3457-9 2
CP6859-1254 54.0mm 12.0mm CP3457-10 2

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.     

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.

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Tractive Hydraulic Slave Cylinder Mount

RandR designed, a concentric slave cylinder mount designed to fit Tractive gearboxes in conjunction with the AP Concentric slave cylinder model CP6859 to complete the ultimate release bearing assembly.

Technical Specifications:

  • Gearbox Mounting:
    • Direct to Tractive
    • 4-bolt fixing on 100mm PCD
  • Compatible Slave Cylinder (sold separately):
    • CP6859 Family
    • CP6859-54 recommend for MK1 & MK2 Escorts with AP Racing clutches
  • Depth:
    • From gearbox mounting face to slave cylinder face: 23mm

Fully compatible with RandR concentric slave cylinder spacers available in 6mm, 9mm, and 15mm thicknesses

**Please note: this mount fitted with the CP6859-54 (18mm stroke) slave cylinder amounts to 75mm (Bearing face to Gearbox Face) total height when full retracted.

**Please note: this mount fitted with the CP6859-1254 (slimline - 12mm stroke) slave cylinder amounts to 67mm (Bearing face to Gearbox Face) total height when full retracted.

Brand Race and Rally
Option SKU Barcode
18.00mm
12.00mm


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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