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Sonnax Pinless Forward Accumulator Piston Kit 77987-01K

Product Description For Sonnax Parts
Product Part No: -- 77987-01K
Transmissions: -- 4L60E 4L65E 4L70E
Package and Weight
Package Quantity: -- 1 ea
Sonnax:High Performance Part - Pinless Forward Accumulator Piston Kit.
Base Price:
Product Description
Part Information:
Dual Seal design
Helps cure: Aluminum pistons wear at the pin bore - Cracked pistons - Delayed engagement - Forward slip - Burnt clutches - Burnt bands.
  • Dual seals stabilize and completely seal the bore, providing a tight seal even after thousands of cycles:
  • Pinless design eliminates the possibility of pin leakage, and the additional length stabilizes the piston to prevent piston cocking:
  • Includes steel balls for plugging existing pin bore in valve body:
Part Contents
  1. Piston:
  2. D-Ring:
  3. PTFE Seal:
  4. Steel balls (2):
Part Specs
  • Material: Aluminum:
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