Description: 4L60-E, 4L65-E, 4L70-E Transmission Pinless Forward Accumulator Piston Kit Part No. 77987-01K Dual Seal design In GM 4L60-E, 4L65-E and 4L70-E units it is common for the plastic forward accumulator piston to wear or crack. This causes a loss of fluid, resulting in delayed engagement, slips, burnt clutches and/or bands. Repeated reciprocation of the accumulator piston causes the piston pin bore to wear, while fluid loss through the piston pin bore or cracks causes forward clutch to slip. Sonnax pinless forward accumulator piston kit 77987-01K eliminates these problems. 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 Contents Piston D-Ring PTFE Seal Steel balls (2) Specs Material: Aluminum
Price: 14.5 USD
Location: Columbus, Ohio
End Time: 2023-09-19T19:08:06.000Z
Shipping Cost: N/A USD
Product Images
Item Specifics
Return shipping will be paid by: Seller
Returns Accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money back or replacement (buyer's choice)
Return policy details:
Brand: sonnax
OE Spec or Performance/Custom: Performance/Custom
Type: Accumulator Piston
Interchange Part Number: S74927BK
Manufacturer Warranty: Yes
Items Included: Pinless Forward Accumulator Piston, Piston Seals, 2 steel balls
Manufacturer Part Number: 77987-01K
Country/Region of Manufacture: United States
Universal Fitment: Yes
Vintage Part: No
Performance Part: Yes
