6HP26, 6HP26X

Fits units with 053 separator plate only.

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 wear-resistant Sonnax pressure regulator sleeve.

Warning:
Verify OE valve & sleeve measurements before use.

Vehicles equipped with ZF6HP19, ZF6HP26 and ZF6HP32 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 the Sonnax pressure regulator sleeve renews pressure regulator action for revived line pressure control in all ranges.

• Manufactured from highly wear-resistant aluminum
• No machining or special tools required

Note:
Kit is NOT compatible with ZF6HP21/28/34 (Gen.2) units.

SONNAX Installation Instructions