SONNAX ACCUMULATOR PISTON KIT 6HP19/26
# 99590K

SONNAX ACCUMULATOR PISTON KIT 6HP19/26

Also fits Ford CFT23.

Symptoms:

  • Downshift clunk
  • Firm shifts
  • Erratic EDS solenoid control and/or EDS codes

Cause:
OE accumulator piston bumpers lose elasticity and take a set due to long term heat and fluid exposure.

Correction:
The Sonnax accumulator piston kit restores optimal hydraulic shock absorption and OE functionality to all the solenoid regulated circuits.


Overly firm up/downshift feel or harsh engagement can be a sign of deformed accumulator piston bumpers in listed units. The OE elastomeric (rubber) bumpers tend to take a set, resulting in loss of hydraulic damping. The Sonnax accumulator piston kit restores hydraulic damping with improved service life.

  • Hardcoat anodized aluminum valve combats premature wear
  • New matching springs reproduce OE function
  • Direct replacement, no special tools required

Application UnitsAccumulators Needed
Chrysler 845RE 7
Ford 6F35 (Gen. 1) 1
Ford 6F35 (Gen. 2) 1
Ford 6R60/6R80 6*
Ford 6R140 3*
Ford CFT23 5
Ford CFT30 5
ZF6HP19/26/32 (Gen. 1) 6
ZF6HP21/28/34 (Gen. 2) 7
ZF8HP45/55/70 7
* NOTE: Sometimes these require 2.

Contents:

  • Pistons (7)
  • Springs (7)

SONNAX Installation Instructions

Type of Product: Pistons
Years:
Alternative #: