January 14, 2014
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 betweeen the plug and bore. Sonnax O-ringed end plug kit 95740-27K services the eight individual bores in the ZF6HP21/28/34 (Gen. 2) valve body which use internal end plugs to isolate valves from solenoids. The O-ringed end plugs replace damaged OE end plugs and restore pressure containment to the valve bore.
Also available for this unit is the double O-ringed end plug kit 95740-30K that services all seven of the 12mm dia. bores.
|Upper Valve Body|
|A||Clutch D1 Brake Regulator||13mm|
|B||M-Shift = Shift Valve 3
E-Shift = Position Valve
|Lower Valve Body|
|C||Clutch A Control Pressure Regulator||15mm|
|D||Clutch E Control Pressure Regulator||15mm|
|F||Bypass Clutch Control Regulator||13mm|
|G||Converter Release Regulator||13mm|
Kit is NOT compatible with ZF6HP19/26/32 (Gen.1) units. To differentiate between Gen. 1 and Gen. 2 valve bodies, see ZF Identification Guide.
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.
January 14, 2014
March 23, 2016
December 21, 2012
October 08, 2020
Vacuum testing at the port(s) indicated fails to hold the recommended minimum in-Hg, or if wear is visually detected.
Note: Port configurations may change due to variations of casting channels between M and E shift, as well as make and model. The location that needs checking will be the first port inboard of the end plug.