---
product_id: 769681198
title: "Castrol TranSynd 668 Allison 2021 Updated SPEC CASE"
brand: "castrol"
price: "B/.986"
currency: PAB
in_stock: true
reviews_count: 5
category: "Castrol"
url: https://www.desertcart.com.pa/products/769681198-castrol-transynd-668-allison-2021-updated-spec-case
store_origin: PA
region: Panama
---

# Castrol TranSynd 668 Allison 2021 Updated SPEC CASE

**Brand:** castrol
**Price:** B/.986
**Availability:** ✅ In Stock

## Quick Answers

- **What is this?** Castrol TranSynd 668 Allison 2021 Updated SPEC CASE by castrol
- **How much does it cost?** B/.986 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.pa](https://www.desertcart.com.pa/products/769681198-castrol-transynd-668-allison-2021-updated-spec-case)

## Best For

- castrol enthusiasts

## Why This Product

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

## Description

Castrol TranSynd 668 is a premium, full-synthetic automatic transmission fluid specifically formulated for Allison Transmission on-highway automatic transmissions. TranSynd 668 provides oxidative stability, anti-wear performance, and friction durability, as well as TES 668 specification differentiators such as extended anti-shudder durability and extended clutch friction durability. This fluid features an Allison TES 668 approval. The TES 668 spec is fully backwards compatible for TES 295 applications.

Review: Highly recommend Fully Synthetic oil - Perfect for my Allison 5 split
Review: Good deal - Just what I needed. Good price and fast shipping

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095SYBWQZ |
| Brand | Castrol |
| Brand Name | Castrol |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 340 Reviews |
| Item Form | Liquid |
| Liquid Volume | 384 Fluid Ounces |
| Liquid volume | 384 Fluid Ounces |
| Manufacturer | CASTROL |
| Material | Synthetic |
| Number of Items | 3 |
| Package information | Bottle |
| Part Number | TES668 |
| Recommended Uses For Product | Automotive |
| Recommended uses for product | Automotive |
| SAE J300 Viscosity Grade | 10W |
| Specific Uses For Product | Maintaining and improving the performance of Allison Transmission on-highway automatic transmissions, protecting gears, and preventing corrosion in transit vehicles |
| UPC | 079191219164 |
| Unit Count | 384 Milliliters |
| Viscosity | 10w |

## Product Details

- **Brand:** Castrol
- **Liquid Volume:** 384 Fluid Ounces
- **Material:** Synthetic
- **Package Information:** Jug
- **Recommended Uses For Product:** Automotive

## 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)

## Questions & Answers

**Q: Just to be sure this is for 3 gals?**
A: Yes there were 3 gallons in the case that I bought

## Customer Reviews

### ⭐⭐⭐⭐⭐ Highly recommend Fully Synthetic oil
*by W***E on 19 May 2026*

Perfect for my Allison 5 split

### ⭐⭐⭐⭐⭐ Good deal
*by K***S on 12 May 2026*

Just what I needed. Good price and fast shipping

### ⭐⭐⭐⭐⭐ Great great
*by T***S on 7 May 2026*

👍🤠

## Frequently Bought Together

- Castrol TranSynd 668 Allison 2021 Updated SPEC CASE
- Allison Filter Kit - 29539579 Screw-on Filter with Magnet - Entire kit for replacing filter on Alison transmission per OEM Specs. True OEM Filter!
- GM Transmission Fluid Pan Gasket for 2020-2021 Freightliner MT45 - 29549684

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**Shop now:** [https://www.desertcart.com.pa/products/769681198-castrol-transynd-668-allison-2021-updated-spec-case](https://www.desertcart.com.pa/products/769681198-castrol-transynd-668-allison-2021-updated-spec-case)

---

*Product available on Desertcart Panama*
*Store origin: PA*
*Last updated: 2026-06-15*