Symptoms:

  • Poor shift quality
  • Flare shifts
  • Harsh shifts
  • Erratic line pressure
  • Slips in Forward & Reverse
  • Delayed Reverse
  • No Reverse
  • TCC slip

Cause:

Excessive valve and bore clearance allows critical line pressure to exhaust causing high or low pressure depending on the location of the wear.

Correction:

The Sonnax oversized valve and tool kit restore the correct valve/bore clearances and line pressure control as well as prevent future wear in this area.

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

Oversized Pressure Regulator Valve Kit
Part No. 95740-01K

Cannot be used in units that have a 053 separator plate.
OE valve name: SYS.DR-V


You need this if... View Instructions Find a Distributor

Wear is commonly found at different areas in ZF6HP19/26/32 (Gen. 1) and Ford 6R60/6R80 pressure regulator bores. Wear at the sleeve end causes high line pressure leading to broken drums, pistons or other parts, as well as restricted converter/lubrication flow. Wear at the spring end of the bore allows low line pressure and lube/TC fluid to exhaust leading to a burned converter clutch and premature bushing failure. The Sonnax oversized pressure regulator valve kit 95740-01K restores valve-to-bore or sleeve clearances so the pressure regulator valve can maintain correct pressures.

  • Hard-coat anodized aluminum valve resists wear
  • Alloy aluminum sleeve is significantly more wear-resistant than the OE sleeve
  • Salvages valve body castings

Kit is NOT compatible with ZF6HP19/26/32 (Gen.1) units with an 053 separator plate code or ZF6HP21/28/34 (Gen.2) units. To differentiate between Gen. 1 and Gen. 2 valve bodies, see ZF Identification Guide.

  • Valve
  • Sleeve

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.

ZF6HP19/26/32 (Gen. 1) without 053 Separator Plate Valve Body Layout

ZF6HP19/26/32 (Gen. 1) without 053 Separator Plate Valve Body Layout
  • 6R60, 6R75, 6R80, ZF6HP19, ZF6HP26, ZF6HP32 Oversized Pressure Regulator Valve Kit 95740-01K

You need this if...

A vacuum test at the inner port fails to hold 18 in-hg of vacuum or higher, or if visual wear is detected at the inboard valve bores. If the inner port holds vacuum, but the outer port fails to hold 16 in-hg, use either this oversized pressure regulator valve kit 95740-01K or direct replacement pressure regulator sleeve [95740-03].

6R60, 6R75, 6R80, ZF6HP19, ZF6HP26, ZF6HP32 Oversized Pressure Regulator Valve Kit Vacuum Test Locations