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.

Warning:

There are some small diameter and length differences that can cause fit and pressure issues if mismatched into the wrong application. It is recommended to measure the locations shown here to verify that the correct OE or replacement part is fit into the appropriate application during rebuild.

Application A B C D E F G
ZF6 Gen. 1, 6R60, 6R75, 6R80 ('09–'14) .645" .629" Dia. .495" Dia. .568" .378" .629" Dia. .550" Dia.
ZF6 Gen. 1 w/ 053 Separator Plate .725" .657" Dia. .511" Dia. .649" .378" .657" Dia. .586" Dia.
ZF6 Gen. 2 .804" .629" Dia. .511" Dia. .725" .418" .629" Dia. .562" Dia.
6R80 ('15-Later), 6R100 .645" .629" Dia. .511" Dia. .568" .378" .629" Dia. .550" Dia.

6R60, 6R75, 6R80 (2009-2014), ZF6HP19, ZF6HP26, ZF6HP32

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

Fits 6R80 '14-earlier. 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 (2009-2014), ZF6HP19, ZF6HP26, ZF6HP32 Oversized Pressure Regulator Valve Kit 95740-01K
  • 6R60, 6R75, 6R80 (2009-2014), ZF6HP19, ZF6HP26, ZF6HP32 Oversized Pressure Regulator Valve Kit 95740-01K details

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 (2009-2014), ZF6HP19, ZF6HP26, ZF6HP32 Oversized Pressure Regulator Valve Kit Vacuum Test Locations