Pinless Accumulator Piston Kit 77998 03K Transmission Forward Energy Piston Set for 4L60E 4L65E 4L70E Transmission

Feature: 1. OE Number: The referencing OE number of this pinless accumulator piston kit are 77998‑03K, 77987‑01K, S74927BK, S74927K. 2. Fitment: The pinless forward accumulator piston kit is a replacement for 4L60E 4L65E 4L70E transmission, applicable for Forward 1‑2, and 3‑4, for Sonnax FWD 1‑2 and 3‑4. 3. Improved Transmission Performance: The pinless accumulator piston kit helps improve shift quality, prevent slips and burnt clutches, bands caused by accumulator piston wear. 4. Durable Design: The dual seals and pinless design eliminate the possibility of pin leakage, stabilizing the piston and preventing cocking for long lasting performance. 5. Easy to Install: The kit is designed for easy installation, providing a hassle free solution for improving transmission normal operation and performance. Specification: Item Type: Pinless Accumulator Piston KitOE Number: 77998‑03K, 77987‑01K, S74927BK, S74927K Material: AluminiumFitment:Fits for 4L60E 4L65E 4L70E Transmission Pinless AccumulatorsApplicable for Forward, 1 2, and 3 4 Accumulator Piston KitFits for Sonnax FWD 1 2 and 3 4. Package List: 1 x Pinless Accumulator Piston Kit (15 Pcs) Note: Please double check the part number of your item, matching information is for reference only.If you are unsure of the item, please contact us before buying to avoid unnecessary return, thanks!