Pinless Forward Accumulator Piston Kit For GM 4L60E 4L65E 4L70E Transmission 1-2 And 3-4 Shifts Easy Install Replacement Repair Set To Prevent Fluid Loss And Cracking

GM 4L60E/65E/70E Pinless Accumulator Piston Kit (2-pack)
✔️ Includes two pinless pistons, seals, and rings for 1-2 & 3-4 shifts

This pinless forward accumulator piston kit is designed for GM 4L60E, 4L65E, and 4L70E transmissions. It replaces worn or cracked plastic forward accumulator pistons, preventing fluid loss and delayed engagement. Ideal for DIY repairs and professional transmission service.

✅ 77987-01K: Piston, D-Ring, PTFE Seal, 2 steel balls
✅ 77998-03K (2PC): D-Ring, Pinless Aluminum Piston, PTFE Seal, steel balls.312" &.236" dia

💡 What is a forward accumulator piston kit used for in GM automatic transmissions? This handy repair part helps restore proper hydraulic pressure and shift timing after wear or damage. - Handy replacement for worn forward accumulator components in GM 4L60E family - Includes sealed PTFE components and steel balls for reliable operation - Improves engagement response and reduces fluid loss - Simple installation for DIY enthusiasts and pro shops