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Sonnax 77754-04K TCC Regulator Valve & Isolator Sleeve Kit , 4L60E 4L65E 4L70E

Sonnax 77754-04K TCC Regulator Valve & Isolator Sleeve Kit , 4L60E 4L65E 4L70E

by Sonnax
SKU S74741QAK
$34.24 - $34.24
$34.24
$34.24 - $34.24
$34.24
Availability:
in stock, ready to be shipped

Delivery time

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

Brand: Sonnax

Other Part Number: S74741QAK, 77754-04K

Additional Tooling: F-77754-TL4, F-77754-SERV, 77754-R2, 77754-SERV, 7

Interchange Part Number: S74741QAK, 77754-04K

Manufacturer Warranty: Yes

Items Included: TCC Isolator Valve Kit

Manufacturer Part Number: S74741QAK, 77754-04K

Superseded Part Number: S74741QAK, 77754-04K

Universal Fitment: Yes

Vintage Part: No

Performance Part: No 

4L60-E, 4L65-E, 4L70-E

TCC Regulator & Isolator Valve Kit
Part No. 77754-04K

Any application, including '98-later EC3 units

REAMER TOOL REQUIRED!!!

Severe wear of the TCC regulator valve bore caused by oscillation of the OE valve allows regulated converter apply pressure to exhaust. This is a primary cause for TCC-related slip code P1870 and overheated converters. Exhausting apply pressure also diminishes line pressure, which can result in burnt clutches. Excess wear at the isolator valve bore reduces TCC apply pressure. Reconditioning the bore and installing Sonnax TCC regulator and isolator valve kit 77754-04K restores normal TCC operation by restablishing the hydraulic integrity of this circuit.
  • Sleeve manufactured from highly wear-resistant aluminum
  • Hardcoat anodized aluminum regulator valve combats premature wear
  • Isolator valve lengthened to operate in unworn portions of the bore
  • Annular grooves help center valves in bore to reduce future side-load wear
  • Isolator Valve
  • Spring
  • Regulator Valve
  • Regulator Sleeve

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