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Sonnax Super Hold Servo Kit 200-4R

Sonnax K65703-1


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Estimated to ship directly from the manufacturer on 07/03/18
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Sonnax Super Hold Servo Kit 200-4R $149.12
Super Hold Servo Kit
  • 200-4R
  • Non-Anodized Cover

  • Sonnax K65703-1 Details

    Servo Kits

    • Cover Non-Anodized
    • Piston
    • Pin
    • Spacer
    • Shim
    • Spring
    • E-clip
    • O-Ring Seal Small (not shown)
    • O-Ring Seal Large
    • Lip Seals (2)
    • Seal Ring (2)
    Sonnax super hold servo kit for GM 200, 200-4R, 200C units features a 17% greater apply area than the Grand National servo. Its pin is longer than the longest OE pin, allowing for a full range of adjustment. The optional parts in servo kits K65703 and K65703-1 include a shim, spring and spacer which, when combined with OE springs, result in a variety of shift tuning capabilities. Altogether, the level of customization in this kit makes it ideal for high-performance street applications as well as all-out racing.

    Overall sealing characteristics have been improved throughout the servo, which features an O-ring to seal the piston to pin. This O-ring prevents cross leakage between the apply and release side of the piston, ensuring all apply pressure gets to the piston for solid shifts.

    • 17% Greater apply area than Grand National servo
    • Extra-long servo pin and optional parts for highly tunable shift feel
    • Outstanding sealing characteristics
    • Made from 6061 billet aluminum for improved strength


    Manufacturer's Part Number:

    In high performance applications where a larger servo is desired, the Sonnax Servo Kits provide a larger apply area. The Sonnax servo is calibrated to progressively increase band apply force as line pressure increases. Sonnax servos are the perfect upgrade for more holding power without excessively harsh shifts.

    K65703-1 - Sonnax Servo Kits is rated 5.0 out of 5 by 1.
    Rated 5 out of 5 by from Performance servo Installed on a grand national and my shifts are very firm. Fixed the issues I was having with an old servo.
    Date published: 2017-05-20
    • y_2018, m_6, d_22, h_6
    • bvseo_bulk, prod_bvrr, vn_bulk_2.0.8
    • cp_1, bvpage1
    • co_hasreviews, tv_0, tr_1
    • loc_en_US, sid_10001_10001_3310871, prod, sort_[SortEntry(order=RATING, direction=DESCENDING), SortEntry(order=SUBMISSION_TIME, direction=DESCENDING)]
    • clientName_jegs
    Some parts are not legal for use in California or other states with similar laws / regulations