---
product_id: 741156967
title: "Castrol TranSynd 668 Allison 2021 Updated SPEC CASE"
brand: "stone river products"
price: "C$26156"
currency: NIO
in_stock: true
reviews_count: 8
url: https://www.desertcart.ni/products/741156967-castrol-transynd-668-allison-2021-updated-spec-case
store_origin: NI
region: Nicaragua
---

# Castrol TranSynd 668 Allison 2021 Updated SPEC CASE

**Brand:** stone river products
**Price:** C$26156
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Castrol TranSynd 668 Allison 2021 Updated SPEC CASE by stone river products
- **How much does it cost?** C$26156 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ni](https://www.desertcart.ni/products/741156967-castrol-transynd-668-allison-2021-updated-spec-case)

## Best For

- stone river products enthusiasts

## Why This Product

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

## Description



## Images

![Castrol TranSynd 668 Allison 2021 Updated SPEC CASE - Image 1](https://m.media-amazon.com/images/I/41E5MyHmFqS.jpg)
![Castrol TranSynd 668 Allison 2021 Updated SPEC CASE - Image 2](https://m.media-amazon.com/images/I/510jQvr1cIS.jpg)
![Castrol TranSynd 668 Allison 2021 Updated SPEC CASE - Image 3](https://m.media-amazon.com/images/I/51fS+M5Xa4S.jpg)
![Castrol TranSynd 668 Allison 2021 Updated SPEC CASE - Image 4](https://m.media-amazon.com/images/I/51ZQ2Q2uaES.jpg)

## Available Options

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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product
*by D***E on June 20, 2025*

Work out good

### ⭐⭐⭐⭐⭐ Very pleased!!
*by T***L on June 4, 2025*

Great product at a great price! The only ATF you should put in your Allison transmission.

### ⭐⭐⭐⭐⭐ Larger quantity for a lower cost
*by J***I on April 2, 2025*

Case of three 1 gallon containers arrived with no spills or issues mentioned in other reviews. Did an Allison 1000 transmission fluid and filter (x2) change on my 2017 Chevy Silverado 2500HD Duramax. I also changed out my transmission cooler lines at the same time to upgrade my cooling system. The allison 1000 change usually takes about 10 quarts of fluid. With the additional line replacements, I need a couple extra quarts to re-fill so this package worked perfect. Was able to put all three jugs in and it put the level right where it needs to be. Also saved a few bucks ordering it through Amazon versus my local auto parts stores.

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**Shop now:** [https://www.desertcart.ni/products/741156967-castrol-transynd-668-allison-2021-updated-spec-case](https://www.desertcart.ni/products/741156967-castrol-transynd-668-allison-2021-updated-spec-case)

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*Product available on Desertcart Nicaragua*
*Store origin: NI*
*Last updated: 2026-03-09*