Transmission Parts ZF ZF6HP19 ZF6HP26 ZF6HP32 Valve Body Valve / Sleeve

Symptoms:

Broken parts due to excessive line pressure
Erratic line pressure
High line pressure
Restricted converter/lube flow

Cause:

Excess pressure regulator sleeve wear allows fluid loss and/or causes valve hang-up, preventing normal line pressure control.

Correction:

Restore appropriate line pressure in all ranges by installing Sonnax drop-in pressure regulator sleeve.

Warning:

Verify OE valve & sleeve measurements before use.

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.

ZF6HP19, ZF6HP26, ZF6HP32

Pressure Regulator Sleeve
Part No. 95740-79

Fits units with 053 separator plate only.

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

Vehicles equipped with ZF6HP19-26-32 (Gen. 1) transmissions often develop erratic or high line pressure due to excessive wear in the OE pressure regulator sleeve. This wear allows balance oil loss, preventing proper line pressure regulation. Without correct balance oil pressure, the pressure regulator valve will be out of its desired position, resulting in line pressure instability and possibly restricting cooler and lube flow. Installing Sonnax pressure regulator sleeve 95740-79 renews pressure regulator action for revived line pressure control in all ranges.

Manufactured from highly wear-resistant aluminum
No machining or special tools required
Drop-in Zip Valve™ installs quickly and easily

Learn More About Zip Valve™ Drop-In Repairs

Note

Kit is NOT compatible with ZF6HP21/28/34 (Gen.2) units. To differentiate between Gen. 1 and Gen. 2 valve bodies, see ZF Identification Guide.

Valve Body Layout

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.