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Sonnax 28821-05K

Master Servo Piston Kit Sealing Ring Type

Sonnax 28821-05K

852-28821-05K

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Sonnax 28821-05K Master Servo Piston Kit Sealing Ring Type $42.09
Master Servo Piston Kit
  • Sealing Ring Type
  • Purple Anodized Cover

  • Sonnax 28821-05K Details

    Master Servo Piston Kits

    • Cover Purple Anodized
    • Pipe Plug
    • Hex Head Bolts (3)
    • O-Ring
    • Gasket
    • Servo Piston
    • Seal Rings (2) PTFE

    Sonnax servo cover kits 28821-03K and 28821-06K are designed to replace other covers and require no modifications to the case. They can be installed with servo piston kits 28821-01K or 28821-02K. Sonnax master servo kits 28821-04K and 28821-07K are designed to replace the piston and cover and require no modifications to the case.

    The kits feature the no leak dual O-ring servo using two O-ring seals for superior, positive sealing. In applications with a distorted bore or case flex, O-rings will conform to the bore surfaces, a feature not possible with metal sealing rings. Precise slip fit with apply pin further improves performance.

    In addition, Sonnax master servo kits 28821-05K and 28821-08K are designed to replace the piston and cover and accept either two PTFE seal rings or two OE metal sealing rings. Made with the same high-quality billet aluminum as our dual O-ring servos, these servos will give you the positive apply needed in high pressure racing conditions.

    • Better sealing with O-ring and gasket
    • Direct replacement
    • Fitting for pressure testing
    • Stronger to handle higher pressure

    Specifications:

    Manufacturer's Part Number:
    28821-05K

    Sonnax Servo Cover Kits 28821-03K and 28821-06K are designed to replace other covers and require no modifications to the case. They can be installed with servo piston kits 28821-01K or 28821-02K.

    Sonnax Master Servo Kits 28821-04K and 28821-07K are designed to replace the piston and cover and require no modifications to the case. The kits feature the no leak dual O-ring servo using two O-ring seals for superior, positive sealing. In applications with a distorted bore or case flex, O-rings will conform to the bore surfaces, a feature not possible with metal sealing rings. Precise slip fit with apply pin further improves performance.

    In addition, Sonnax Master Servo Kits 28821-05K and 28821-08K are designed to replace the piston and cover and accept either two PTFE seal rings or two OE metal sealing rings. Made with the same high-quality billet aluminum as our dual O-ring servos, these servos will give you the positive apply needed in high pressure racing conditions.

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