Pinless Accumulator Piston Kit 77998-03K For 200-4R 4L60 4L60-E 4L65-E 4L70-E

Pinless Accumulator Piston Kit For 4L60E 4L60 4L65E 4L70E 77998-03K

Part Number：77998-03K

For GM units it is common to have poor shift quality, burnt bands or clutches due to accumulator piston wear. Repeated reciprocation of the accumulator piston causes wear at the piston pin bore interface. After this wear reaches a critical point, fluid loss through the piston pin bore cannot be compensated due to lack of pump volume. In addition, the piston can get cocked and gall the accumulator bore due to the pin bore wear or the spring bottoming out. To prevent these conditions in the 1-2 or 3-4 accumulator bores, offers pinless accumulator piston kit 77998-03K.

Fitment： For 200-4R, 4L60, 4L60-E, 4L65-E, 4L70-E (Compatible table only for reference) Note: Please check part photos, part number above carefully to make sure it is what you need. Due to computers display colors differently, the color may vary slightly from the above images, Thanks for your understanding!

Package Includes: 1 Set (As shown in the figure)