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Transgo 74927-AP Forward Accumulator Piston 4L60E 4L65E 4L70-E
Transgo 74927-AP Forward Accumulator Piston 4L60E 4L65E 4L70-E

Transgo 74927-AP Forward Accumulator Piston 4L60E 4L65E 4L70-E

$ 7.36

Availability: 23 in stock
  • Other Part Number: A74741G
  • Interchange Part Number: 8686017, 24200126
  • Manufacturer Part Number: 74927-AP
  • Condition: New
  • Brand: Sonnax

    Description

    4L60-E, 4L65-E, 4L70-E
    Forward Accumulator Piston
    Part No.
    74927-AP
    OE Part No.
    8686017 or 24200126
    In GM 4L60-E, 4L65-E and 4L70-E units, it is common for the plastic Forward accumulator piston to wear or crack and older aluminum piston bores to wear from repeated reciprocation. This causes a loss of fluid, resulting in delayed engagement, slips, burnt clutches and/or bands. Sonnax aluminum Forward accumulator piston 74927-AP eliminates the cracking problem and restores hydraulic integrity at the pin bore. The drop-in Zip Valve
    ™
    part installs quickly and easily.
    Symptoms:
    Cracked pistons
    Burnt clutches
    Burnt bands
    Forward slip
    Delayed engagement
    Aluminum pistons wear at the pin bore
    Cause:
    Wear at the piston pin bore due to repeated reciprocation and/or cracks in the plastic accumulator piston.
    Correction:
    Sonnax drop-in, aluminum forward accumulator piston is a direct replacement for the OE plastic piston and restores sealing integrity at the pin bore.