---
product_id: 96602811
title: "4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD, 1-2 & 3-4"
brand: "world wide parts outlet"
price: "309.80 DT"
currency: TND
in_stock: true
reviews_count: 8
url: https://www.desertcart.tn/products/96602811-4l60e-4l65e-4l70e-sonnax-pinless-accumulator-piston-kit-fwd-1
store_origin: TN
region: Tunisia
---

# Dual-seal bore stabilization Includes steel balls for valve body plug Pinless design prevents leakage 4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD, 1-2 & 3-4

**Brand:** world wide parts outlet
**Price:** 309.80 DT
**Availability:** ✅ In Stock

## Summary

> ⚙️ Upgrade your shift game with leak-proof precision!

## Quick Answers

- **What is this?** 4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD, 1-2 & 3-4 by world wide parts outlet
- **How much does it cost?** 309.80 DT with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/96602811-4l60e-4l65e-4l70e-sonnax-pinless-accumulator-piston-kit-fwd-1)

## Best For

- world wide parts outlet enthusiasts

## Why This Product

- Trusted world wide parts outlet brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Complete Installation Kit:** Includes premium Viton D-rings, PTFE seals, and steel balls for a seamless upgrade and leak-proof performance.
- • **Enhanced Piston Stability:** Extra piston length prevents cocking and wear, protecting your transmission’s critical components.
- • **Innovative Pinless Design:** Say goodbye to pin leakage and piston misalignment—experience smoother, more reliable shifts every time.
- • **Precision Dual-Seal Technology:** Ensures a rock-solid seal after thousands of cycles, eliminating fluid loss and boosting transmission longevity.
- • **Tailored for 1993+ GM 4L60E Transmissions:** Optimized specifically for forward clutch 1-2 & 3-4 accumulators—upgrade with confidence and avoid compatibility issues.

## Overview

The Sonnax Pinless Accumulator Piston Kit is a high-performance replacement solution designed for 1993 and newer GM 4L60E transmissions. Featuring dual seals and a pinless design, it eliminates common wear points that cause fluid loss and poor shift quality. The kit includes all necessary seals and steel balls to plug existing pin bores, ensuring enhanced piston stability and long-lasting transmission reliability.

## Description

4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD, 1-2 & 3-4

## Features

- 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
- 1992-UP 4L60E only will NOT WORK on the 4L60/TH-700-R4 "the 1-2 and 3-4 will but the 4L60/TH700-R4 do not use the FWD

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Sonnax |
| Brand | World Wide Parts Outlet |
| Item Weight | 7 ounces |
| Package Dimensions | 6.18 x 6.06 x 1.61 inches |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 2 - 77998-03K / 1 - 77987-01K |

## Images

![4L60E, 4L65E, 4L70E Sonnax Pinless Accumulator Piston Kit FWD, 1-2 & 3-4 - Image 1](https://m.media-amazon.com/images/I/61cyljyOtaL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Awesome product
*by W***3 on June 15, 2025*

Great price fit perfect

### ⭐⭐⭐⭐⭐ Problem solver
*by B***T on March 12, 2025*

Good quality parts that fit right and take care of a know problem in the 4L60 they work as they should and eliminate worn pin hole leaks

### ⭐⭐⭐⭐⭐ Everything is packaged well . Seller was awsome at responding to my messages.
*by R***R on March 29, 2023*

Great value for what you get

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**Shop now:** [https://www.desertcart.tn/products/96602811-4l60e-4l65e-4l70e-sonnax-pinless-accumulator-piston-kit-fwd-1](https://www.desertcart.tn/products/96602811-4l60e-4l65e-4l70e-sonnax-pinless-accumulator-piston-kit-fwd-1)

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*Product available on Desertcart Tunisia*
*Store origin: TN*
*Last updated: 2026-08-24*