Tool Required VB-FIX Required

Printpartsummary
Symptoms:
  • Cycling RPM
  • Excess TCC slip
  • Flare shifts
  • Harsh shifts
  • Low TCC release pressure
  • Overheated converter
  • Rough idle in Reverse
  • TCC codes
Cause:

The bypass clutch control valve controls torque clutch apply and release pressure. As the bore wears, the apply rate of the clutch slows and the clutch release pressure will not vent.

Correction:

Ream the bore to restore tolerance and install the upgraded Sonnax oversized bypass clutch control valve kit.

Tool Required VB-FIX Required

6R60, 6R75, 6R80, ZF6HP19, ZF6HP26, ZF6HP32

Oversized Bypass Clutch Control Valve Kit

Part No.

95740-13K

Oversized Bypass Clutch Control Valve Kit
  • 95740-13k_combo

  • Oversized Bypass Clutch Control Valve Kit

Small_95740-13k_combo Small_95740-13k

6R60, 6R75, 6R80, ZF6HP19, ZF6HP26, ZF6HP32

Oversized Bypass Clutch Control Valve Kit

Part No. 95740-13K

  • Valve
  • Spring
  • O-Ring
  • End Plug

OE valve name: WD-V

Complaint:

  • Cycling RPM
  • Excess TCC slip
  • Flare shifts
  • Harsh shifts
  • Low TCC release pressure
  • Overheated converter
  • Rough idle in Reverse
  • TCC codes

Cause:

The bypass clutch control valve controls torque clutch apply and release pressure. As the bore wears, the apply rate of the clutch slows and the clutch release pressure will not vent.


Correction:

Ream the bore to restore tolerance and install the upgraded Sonnax oversized bypass clutch control valve kit.

Common problems in vehicles equipped with ZF6HP19/26/32 (Gen. 1) and Ford 6R60, 6R80 transmissions include torque converter clutch slip, firm shifts and an overheating torque converter. One cause of these problems is a worn bypass clutch control valve resulting in slow applyand release of the torque converter clutch. Installing the Sonnax oversized bypass clutch control valve kit 95740-13K restores factory torque converter clutch apply and release rates. This will resolve the converter slip, harsh shift and overheating problems.

  • Hard-coat anodized aluminum valve resists wear
  • Valve is tighter fit to the bore than OE for better sealing
  • Valve has annular grooves for better centering in the bore
NOTE:

Kit is NOT compatible with ZF6HP21/24/34 (Gen.2) units. To differentiate between Gen. 1 and Gen. 2 valve bodies, see ZF Identification Guide.

Required Tools

You need this if...

Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.

  • Test Locations

Click here to view PDF if instructions do not appear below.

It appears you don't have a PDF plugin for this browser. Click here to view the PDF file.

Valve Body Layouts

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.

Valve Body Layout ZF6HP19, ZF6HP26, ZF6HP32 (Generation 1)
Valve Body Layout ZF6HP19/26/32 (Gen. 1) With 053 Separator Plate
Contact a Sonnax Distributor to purchase this part.