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4l60E / 4L65E TCC Regulator & Isolator Valve Kit


Mfg Retail: $53.44
Cost From Us: $46.88
You Save: $6.56
In Stock
Our Part #: S-77754-04K
Manufacturer: Sonnax
Mfg Part # : 77754-04K
free shipping
4L60E / 4L65E TCC Regulator & Isolator Valve Kit
Fits any application, including '98-later EC3 units

The Oslilating motion of the TCC Regulator Valve causes severe wear in the valve bore.
This severe wear causes fluid exaust problems and fluid pressure loss.
This issue is the main cause for TCC-Related Slip Code P1870.
The deminished line pressure can also result in burnt clutches or bands.

Sonnax has engineered a custom Valve Assembly to correct this issue.
By Reconditioning the valve bore and installing the updated valve it re-establishes the hydraulic integrity of the circuit.
The Sonnax sleeve is made of highly wear resistant aluminum.
The Hardcoat Anodized aluminum Regulator Valve combats premature wear.
Sonnax has also lengthened the Isolator Valve to opperate in unworn portions of the bore.
Also the valves have Annular grooves that center the Valves in the bore.
This helps reduce future side load wear in the Valve bore.

Symtoms This May Fix

Harsh 1-2 Shift
3-4 Clutch burned
Code P1870
Low line pressure
Low TCC apply pressure
Overheated converter

Photos show the actual Valve Kit that is sent


Our Part #       S-77754-04K
Sonnax Part #   77754-04K


We would appreciate the opportunity to serve your transmission parts needs ! ! !


Cascade Transmission Parts , Inc.
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