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

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

by Sonnax
SKU S34741C-2K
$61.11 - $61.11
$61.11
$61.11 - $61.11
$61.11
Availability:
Low stock

Delivery time

You will receive your package in 2–5 business days within the contiguous U.S.

Non-Domestic Product: No

Custom Bundle: No

Fitment Type: Direct Replacement

Items Included: Valve, Sleeve, Springs, Pin

Manufacturer Part Number: 34994-18K

Modified Item: No

Transmission Type: Automatic

Brand: Sonnax

Type: Valve Body repair kit

Manufacturer Warranty: Unspecified Length

Surface Finish: New

Country/Region of Manufacture: United States

Performance Part: Yes


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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