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4L80E Transmission Oversized TCC Regulator Valve Kit Sonnax 34994-18K
4L80E Transmission Oversized TCC Regulator Valve Kit Sonnax 34994-18K

4L80E Transmission Oversized TCC Regulator Valve Kit Sonnax 34994-18K

$ 42.06

Availability: 43 in stock
  • Type: Valve Body repair kit
  • Modified Item: No
  • Custom Bundle: No
  • Surface Finish: New
  • Transmission Type: Automatic
  • Manufacturer Warranty: Unspecified Length
  • Condition: New
  • Country/Region of Manufacture: United States
  • Non-Domestic Product: No
  • Fitment Type: Direct Replacement
  • Manufacturer Part Number: 34994-18K
  • Performance Part: Yes
  • Brand: Sonnax
  • Items Included: Valve, Sleeve, Springs, Pin

    Description

    4L80E - 4L80E Transmission Valve Body End Plug Kit
    Oversized TCC Regulator Valve Kit
    Part No.
    34994-18K
    REAMER TOOLING REQUIRED (# F-34994-TL18 - NOT INCLUDED)
    GM vehicles equipped with 4L80-E and 4L85-E transmissions may exhibit problems such as TCC shudder, burnt converter linings, TCC apply and release concerns and related codes. These issues can often be caused by critical pressure loss due to excess wear in the TCC regulator bore. Reconditioning the bore and installing Sonnax oversized TCC regulator valve kit 34994-18K shores up the hydraulic integrity of the TCC control circuit to return robust TCC operation.
    Hardcoat anodized aluminum valve combats premature wear
    Lengthened critical spool for added stability and wear prevention
    Annular grooves help center valve in bore to reduce future side-load wear
    Added chamfer to improve apply characteristics and prevent shuddern
    Two springs included in kit; one for OE lockup feel, the other provides firmer-than-OE
    Contents
    Valve
    Sleeve
    Springs (2)
    Retaining Pin
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