Description
Sonnax 95740-15K, ZF8HP70 Accumulator Piston Kit. Also fits ZF8HP45, ZF8HP55.
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. Sonnax accumulator piston kit 95740-15K 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
Also Fits: 6F35 (Gen. 1), 6F35 (Gen.2), 6R140, 6R60, 6R75, 6R80, 845RE, CFT30, ZF6HP19, ZF6HP21, ZF6HP26, ZF6HP28, ZF6HP32, ZF6HP34
| Application Units | Accumulators Needed |
|---|---|
| Chrysler 845RE | 7 |
| Ford 6F35 (Gen. 1) | 1 |
| Ford 6F35 (Gen. 2) | 1 |
| Ford 6R60/6R60 | 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. | |
- Pistons (7)
- Springs (7)
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.
