CP8742 - Ø184mm (7¼") - Twin Plate - Heavy Duty - 12 Bolt

CP8742 - Ø184mm (7¼") - Twin Plate - Heavy Duty - 12 Bolt

Typical Applications:
- WRC.
- Touring Car

Features: - Heavy Duty version of CP8022 family. - Special high temperature diaphragm spring.
- New Assymetric designed cover.
- offers 10% reduction in weight and increased stiffness..
- Benefits from a new drive system, featuring drive tenons, which locate into internal jaws of the lugs.
- five times more durable than conventional clutch design when subjected to the same test parameters.
-  eradicates distorting of pressure plates trapping on lugs.
- Push Type.
- Stepped
Flywheel Fixing.
Inner diameter location.
- 12 bolt, one piece forged cover and lugs.
machined from aluminium alloy. Allows dust and debris to escape. - Driven plate thickness - new = 6.00mm.
- Black hard anodised.
- New innovative wear plate design fitted.
- combats wear on the drive lugs.
- Very low wear rate.
- Individually tested

match machined, balanced and clutch load recorded
- Mounting studs available, CP4703.

NOTE: Alternative 'I' Drive Clutch
Standard duty alternative CP8022 family.

Part Numbers:
- CP8742-CH81-SF.
- CP8742-TH81-SF.
  • Torque Capacity Nm (lbs/ft) - CP8742-CH81-SF - 559 (411).
    - CP8742-TH81-SF - 735 (542)
    Release Load - Max Peak New - N - CP8742-CH81-SF - 4450.
    - CP8742-TH81-SF - 5500
    Release Load - Max Peak Worn - daN - CP8742-CH81-SF - 3750.
    - CP8742-TH81-SF - 4350
    Clutch "Wear In" 1.50
    Set-up Height - New - CP8742-CH81-SF - 31.92mm / 29.97mm.
    - CP8742-TH81-SF - 31.71mm / 29.98mm
    Set-up Height - Max Worn - CP8742-CH81-SF - 36.68mm.
    - CP8742-TH81-SF - 37.50mm
    Weight (Less D/Plates) Kg 2.29
    Release Bearing - Outer race rotates - CP3457-2 or -10.
    - Inner race rotates - CP3457-6
    Estimated Assy Intertia - No driven plates (Kgm²) 0.01480Kgm²
    Estimated Driven Plate & Hub Inertia (Kgm²) - Back to back type - 0.003569Kgm²
    Driven Plate Options New = 6.00mm Nom.
    Worn = 5.63mm Min. Driven Plate Types
    cp8301 type driven plate - Bonded 3 paddle x 2
    CP8301-A036H - 1"x23 spline
    CP8301-A026H - 7/8"x20 spline

    cp8401 type driven plate - Bonded 4 paddle x 2
    CP8401-A036H - 1"x23 spline
    CP8401-A026H - 7/8"x20 spline

    CP8601 type driven plate - Bonded 6 paddle x 2
    CP8601-A036H - 1"x23 spline

    - Nested 4 paddle x 2
    CP7972-A036H - 1"x23 spline
    - Alternative Nested 4 paddle x 2
    CP8172-10FM4 - 1" x 23 spline - Flywheel spline
    CP8172-11FM4 1" c 23 spline - Cover side
    other splines available see.
    N.B. Clutch supplied less driven plate.
    -bonded driven
    plate chart
    Spare Parts
    Main Pressure Plate CP8742-105
    Intermediate Pressure Plate CP8022-102
  • Click on the link to download the relevant drawing.

Associated Products

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