---
product_id: 321925241
title: "Stone River Products Castrol TranSynd 668 Allison 2021 Updated SPEC 1 GALLON ONLY BY DOXA WORLDWIDE"
brand: "castrol"
price: "S/.468"
currency: PEN
in_stock: true
url: https://www.desertcart.pe/products/321925241-stone-river-products-castrol-transynd-668-allison-2021-updated-spec
store_origin: PE
region: Peru
---

# Thermal & oxidative stability Improved gear protection Extended clutch-friction durability Stone River Products Castrol TranSynd 668 Allison 2021 Updated SPEC 1 GALLON ONLY BY DOXA WORLDWIDE

**Brand:** castrol
**Price:** S/.468
**Availability:** ✅ In Stock

## Summary

> ⚙️ Drive smarter, last longer – the ultimate transmission upgrade!

## Quick Answers

- **What is this?** Stone River Products Castrol TranSynd 668 Allison 2021 Updated SPEC 1 GALLON ONLY BY DOXA WORLDWIDE by castrol
- **How much does it cost?** S/.468 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pe](https://www.desertcart.pe/products/321925241-stone-river-products-castrol-transynd-668-allison-2021-updated-spec)

## Best For

- castrol enthusiasts

## Why This Product

- Trusted castrol brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Clutch Confidence:** Enhanced clutch-friction durability means fewer maintenance worries.
- • **Heat & Deposit Warrior:** Thermal and oxidative stability prevents thickening and harmful deposits.
- • **Unmatched Gear Defense:** Protect your transmission with advanced synthetic formula for peak performance.
- • **Long-Lasting Smoothness:** Extended anti-shudder durability keeps your ride silky and responsive.
- • **Corrosion & Foam Fighter:** Superior resistance ensures your transmission fluid stays pure and effective.

## Overview

Castrol TranSynd 668 is a premium synthetic transmission fluid designed for universal fit, delivering superior gear protection, extended clutch and anti-shudder durability, and excellent resistance to corrosion, foaming, and thermal breakdown. Packaged in a convenient 1-gallon bottle, it ensures optimal transmission performance and longevity for modern vehicles.

## Description

Stone River Products Castrol TranSynd 668 Allison 2021 Updated SPEC 1 GALLON ONLY BY DOXA WORLDWIDE

## Features

- Delivers improved gear protection.
- Delivers extended anti-shudder durability.
- Delivers extended clutch-friction durability.
- Excellent corrosion and foaming resistance.
- Excellent thermal and oxidative stability that helps to prevent deposits and oil thickening.
- Fit type: Universal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Synthetic |
| Brand | Castrol |
| Package Information | Bottle |
| Liquid Volume | 1 Gallons |
| Item Weight | 3.41 Kilograms |
| Recommended Uses For Product | Automotive |
| Item Form | Liquid |
| Unit Count | 128.0 Fluid Ounces |
| UPC | 079191219164 |
| Number of Items | 1 |
| Item Weight | 7.5 pounds |
| Package Dimensions | 10.91 x 8.07 x 4.33 inches |
| Manufacturer Part Number | TES 668 |

## Product Details

- **Material:** Synthetic
- **Brand:** Castrol
- **Package Information:** Bottle
- **Liquid Volume:** 1 Gallons
- **Item Weight:** 3.41 Kilograms

## Images

![Stone River Products Castrol TranSynd 668 Allison 2021 Updated SPEC 1 GALLON ONLY BY DOXA WORLDWIDE - Image 1](https://m.media-amazon.com/images/I/71RP2LrvVRL.jpg)

## Available Options

This product comes in different **Number of Items** options.

## Questions & Answers

**Q: Can I use this in my 2001 silverado 2500hd with an allison transmission?**
A: Yes, I recommend flushing and filter (Both) try to remove as much of the Dino oil as possible.
Transcend works wonderfully in my '01 and '05 Chev Allisons

**Q: Can this be use with nissan rogue 2017?**
A: no

**Q: Ok for Genesis 80 2017**
A: no

**Q: I am trying to find the color of the fluid. Not able to find it on the product description. Any comments?**
A: It's red. Just like the older version.

## Frequently Bought Together

- Stone River Products Castrol TranSynd 668 Allison 2021 Updated SPEC 1 GALLON ONLY BY DOXA WORLDWIDE
- Allison 29539579 Screw-on Filter with Magnet Filter Kit replacing filter for Allison transmission per OEM Specs, For utility terrain vehicles
- ACDelco GM Original Equipment PF2232 Engine Oil Filter

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**Shop now:** [https://www.desertcart.pe/products/321925241-stone-river-products-castrol-transynd-668-allison-2021-updated-spec](https://www.desertcart.pe/products/321925241-stone-river-products-castrol-transynd-668-allison-2021-updated-spec)

---

*Product available on Desertcart Peru*
*Store origin: PE*
*Last updated: 2026-01-29*