Transmission Parts Ford 6R140 Valve Body Valve / Sleeve

Symptoms:

Shift quality is not load sensitive
Delayed engagement
Gear ratio & solenoid codes
Harsh shifts
Burnt Forward clutch
Overheated fluid

Cause:

Wear in Forward clutch latch valve bore allows critical pressure loss that causes feedback pressure instability, preventing normal operation.

Correction:

Recover hydraulic control and renew shift performance by reconditioning the bore and installing Sonnax oversized Forward clutch latch valve kit.

6R140

Oversized Forward Clutch Latch Valve Kit
Part No. 126740-06K

Tooling:

F-126740-TL6
VB-FIX

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The Ford 6R140 Forward clutch latch valve provides feedback pressure to the Forward clutch regulator valve, balancing the regulator to assist with apply and release of the Forward clutch. Excess wear at this bore causes leakage that affects Forward clutch timing and feel, resulting in delayed engagement, harsh shifts, burnt Forward clutches, ratio codes and overheated fluid.

Reconditioning the bore and installing Sonnax oversized Forward clutch latch valve kit 126740-06K restores normal shift operation and Forward clutch control by reviving the hydraulic integrity of this circuit.

Hardcoat anodized aluminum valve combats premature wear
Annular grooves help center valve in bore to reduce future side-load wear
New spring matches OE calibration

Contents

Valve
Spring

Valve Body Layout

Sonnax valve body layouts provide a detailed overview of individual units making it quick and easy to determine what’s available for the specific valve body you’re working on. See all Sonnax valve body layouts.