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SKU:
ZZ3H00727
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4L60E 4L65E 4L70E Pinless Forward Accumulator Piston Kit FWD 1-2 and 3-4
$54.19
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$54.19
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$54.19
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
Pinless Forward Accumulator Piston Kit for 4L60E, 4L65E, 4L70E
This pinless forward accumulator piston kit is designed for 4L60E, 4L65E, and 4L70E transmissions, replacing the original spring-loaded piston in the forward accumulator for both 1-2 and 3-4 clutch circuits. The kit eliminates the pin, reducing the risk of failure and improving shift consistency in these automatic transmissions. It serves as a direct upgrade for rebuilds and performance applications, offering a more reliable alternative to the stock component.
Overview
This pinless forward accumulator piston kit is a direct replacement for the 4L60E, 4L65E, and 4L70E automatic transmissions, targeting the forward accumulator circuit used in 1-2 and 3-4 shifts. It removes the problematic pin found in OEM pistons, which is a common failure point, making the assembly more robust. This kit is intended for rebuilders or technicians looking for a dependable part to restore or enhance transmission performance.
Built For Performance
- Eliminates the pin for a simplified, stronger piston design
- Covers both 1-2 and 3-4 forward accumulator positions
- Includes replacement piston and related sealing components
- Precision-machined for a proper fit in 4L60E, 4L65E, and 4L70E cases
- Reduces the chance of piston sticking or breaking during high-load shifts
- Constructed from durable materials to withstand transmission fluid conditions
Fits These Machines
- for 4L60E transmission
- for 4L65E transmission
- for 4L70E transmission
On-The-Job Use
- Overhauling a 4L60E or 4L70E transmission during a rebuild
- Replacing a worn or broken forward accumulator piston to fix hard or delayed shifts
- Modifying a transmission for increased torque handling in high-performance vehicles
- Repairing a leak or pressure loss in the forward clutch circuit
Specs At A Glance
| Part Number(s) | Pinless Forward Accumulator Piston Kit |
| Transmission Models | 4L60E, 4L65E, 4L70E |
| Application | Forward Accumulator (1-2 and 3-4) |
| Design | Pinless |
Good To Know
Q: Does this kit work for both 1-2 and 3-4 accumulator circuits? A: Yes, the kit is designed to replace the forward accumulator piston in both the 1-2 and 3-4 positions, providing a full solution for the forward clutch system.
Q: Will this piston fix erratic shifting in my 4L60E? A: It addresses a common failure point in the forward accumulator that can cause delayed or harsh shifts. However, other transmission issues may also need attention, so a full inspection is recommended.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.