Clutch Plate
Part No. ZF-CP-4

OS Bypass Clutch Control Valve Kit

OE valve name: WD-V

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.

Required tool:

F-95740-TL13

End Plug Kit, O ringed internal 6HP21/28

Valves, springs and pressurized fluid repeatedly push on end plugs causing them to deform and wear. As a result, critical pressure is lost due to excessive clearance between the plug and bore.

Sonnax O-ringed internal end plug kit 95740-30K services the seven individual bores in the ZF6HP19/26/32 (Gen. 1) with 053 separator plate code, and ZF6HP21/28/34 (Gen. 2) valve bodies which use internal end plugs to isolate valves from solenoids. The double O-ringed end plugs replace damaged OE end plugs and restore pressure containment to the valve bore.

Press.reg.v. OS ZF6HP26, ZF6HP19

Fits units with 053 separator plate only. Verify OE valve & sleeve measurements before use.

OE valve name: SYS.DR-V

Vehicles equipped with ZF6HP19, ZF6HP26 and ZF6HP32 transmissions often develop erratic or high line pressure due to excessive wear in the OE pressure regulator bore and/or sleeve. This wear allows critical oil loss, preventing proper line pressure regulation.

Without correct oil pressure, the PR valve will be out of its desired position, resulting in line pressure instability and possibly restricting cooler and lube flow. Reconditioning the bore and installing Sonnax oversized pressure regulator valve kit 95740-78K renews pressure regulator action for revived line pressure control in all ranges.