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Alloyworks Pinless Forward Accumulator Piston Kits fit Sonnax FWD 1-2 3-4 4L60E 4L65E 4L70E

Alloyworks Pinless Forward Accumulator Piston Kits fit Sonnax FWD 1-2 3-4 4L60E 4L65E 4L70E

0539-50021-1045
$27.00
Quantity
Please check if this fits your vehicle before purchasing
USA Local Warehouses
1 Year Warranty
60 Days Easy Return
Please check if this fits your vehicle before purchasing
Description

Kit Includes:
Pinless Accumulator Piston
D Ring
PTFE Seal
2 × Steel Balls

Description:
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

APPLICATION:
Fit for 4L60E 4L65E 4L70E Transmission
Fit for 1993-2018 4L60E: 1-2 & 3-4 Accumulator Piston (.310" Pin Diameter) (Pinless Design)
Fit for 1981-1990 TH200-4R: Only 3-4 Accumulator Piston (.310" Pin Diameter) (Pinless Design)
Fit for 2001-2018 4L70E: 1-2 & 3-4 Accumulator Piston (.310" Pin Diameter) (Pinless Design)
Fit for 2001-2018 4L65E: 1-2 & 3-4 Accumulator Piston (.310" Pin Diameter) (Pinless Design)
Fit for 1982-1993 TH700-R4: 1-2 & 3-4 Accumulator Piston (.310" Pin Diameter) (Pinless Design)

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