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TranSynd is a full-synthetic, automatic transmission fluid designed specifically for ALLISON transmissions. It allows for extended drain intervals of up to 300,000 miles / 48 months in general-duty transmissions and up to 150,000 miles / 48 months in severe-duty transmissions. TranSynd offers 12 times longer drain intervals than conventional and other non-TES 668 and non0-TES 295 fluids. It provides shear stability that helps maintain a stable viscosity which provides wear protection in gears throughout the drain interval. Additionally, it offers improved gear protection, extended anti-shudder durability and extended clutch-friction durability.
Item #:
40979107
Castrol TranSynd 668 Full-Synthetic Automatic Transmission Fluid, 5 Gallon Pail
86% of respondents would recommend this to a friend
Item #:
40979107
ZAR 4556
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TranSynd is a full-synthetic, automatic transmission fluid designed specifically for ALLISON transmissions. It allows for extended drain intervals of up to 300,000 miles / 48 months in general-duty transmissions and up to 150,000 miles / 48 months in severe-duty transmissions. TranSynd offers 12 times longer drain intervals than conventional and other non-TES 668 and non0-TES 295 fluids. It provides shear stability that helps maintain a stable viscosity which provides wear protection in gears throughout the drain interval. Additionally, it offers improved gear protection, extended anti-shudder durability and extended clutch-friction durability.
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What Stands Out
Full-Synthetic Formula
Castrol TranSynd 668 uses advanced full-synthetic technology providing superior lubrication, reducing wear and prolonging transmission life, ensuring top performance in demanding conditions.
Versatile Compatibility
Designed for various automatic transmissions, this fluid caters to multiple vehicle brands and models, making it a reliable choice for diverse automotive applications and enhancing fluid interchangeability.
Extended Drain Interval
With exceptional thermal stability and oxidation resistance, this fluid allows for longer intervals between changes, saving both time and money for vehicle owners while ensuring peak transmission functionality.
Product Details
- TranSynd is a full-synthetic, automatic transmission fluid designed specifically for ALLISON transmissions / TES 468 is now covered by TranSynd 668
- Allows for extended drain intervals of up to 300,000 miles / 48 months in general-duty transmissions and up to 150,000 miles / 48 months in severe-duty transmissions
- 12 times longer drain intervals than conventional and other non-TES 668 and non0-TES 295 fluids
- Shear stability that helps maintain a stable viscosity which provides wear protection in gears throughout the drain interval
- Improved gear protection, extended anti-shudder durability and extended clutch-friction durability
| Package Dimensions | 16 x 12.25 x 12.25 inches (40.6 x 31.1 x 31.1 cm); 38 Pounds (17.24 kg) |
| Item model number | 15E2E0 |
| UPC | 079191219638 |
| Manufacturer | Castrol |
| Brand Name | Castrol |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | Specific vehicle and transmission types, enhancing performance and longevity |
| Item Form | Liquid |
| Global Trade Identification Number | 00079191219638 |
| Unit Count | 640.0 Fluid Ounces |
| Number of Items | 1 |
| Part Number | 15E2E0 |
| Model Number | 15E2E0 |
| Included Components | Transmission Fluid |
| Item Type Name | Full Synthetic Transmission Fluid |
| Container Type | Pail |
| SAE J300 Viscosity Grade | 5W-40 |
| Liquid Volume | 640 Fluid Ounces |
| Item Weight | 38 Pounds (17.24 kg) |
| Material | Synthetic |
Who Should Buy?
-
Commercial Fleets
Ideal for businesses running multiple vehicles, ensuring optimal transmission performance and longevity across varied driving conditions.
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Heavy-Duty Vehicles
Perfect for trucks and buses that require high-performance fluids, providing superior protection under extreme loads and environmental conditions.
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Automotive Enthusiasts
Recommended for car lovers who seek premium fluids for their vehicles, enhancing performance and maintaining reliability in different applications.
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Older Vehicles
Not suggested for cars that require older transmission fluid types, which may not be compatible with synthetic formulations.
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Budget-Conscious Users
May not be suitable for consumers seeking lower-priced alternatives, as it is a premium synthetic option with a higher cost.
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Light Driving Conditions
Not necessary for vehicles used primarily for light, in-town driving, where standard fluids are often adequate for performance.
Product Description
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Is Castrol TranSynd 668 Full-Synthetic Automatic Available to Shop Online in South Africa?
Answer: Yes, at Ubuy South Africa this product is available for you to shop at a reasonable price. The Castrol TranSynd 668 Full-Synthetic Automatic is not available locally but you can trust us with our express shipping services. -
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Answer: The delivery time of your ordered product varies as per what you've ordered and the shipping method that you've chosen. The estimated delivery time is mentioned during the checkout process, so be carefree while shopping.
Castrol Transmission Fluids 15E2E0 Editorial Review
Castrol TranSynd 668 Full-Synthetic Automatic Transmission Fluid, 5 Gallon Pail is a good quality fluid recommended for use on Allison 1000 series transmissions. The fluid meets the Allison TES 668 approval and is backward compatible with Allison TES 295 and Allison TES 468, making it versatile. The shelf life is 48 months from the date of manufacture for both unopened and opened containers. The product is a great value for money and buying it in a 5-gallon pail is the best option. The product arrived on time and with simple packaging. It is a great product that saved a lot of money for one customer who provided it to a shop that installed their rebuilt transmission.
Customer Reviews & Ratings
326 customers ratings
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5 Star
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4 Star
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3 Star
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Pros
- Good quality fluid
- Recommended for use on Allison 1000 series transmissions
- Meets Allison TES 668 approval and is backward compatible with Allison TES 295 and Allison TES 468
- 48-month shelf life for both unopened and opened containers
- Great value for money
- Buying in a 5-gallon pail is the best option
- Simple packaging
Cons
- One customer received a 5-gallon pail that only contained 4 gallons of the fluid
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Last Updated on July 8, 2026
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ZAR 4556
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QTY:
Only 2 items left in stock.
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Features & Benefits
- Designed for ALLISON transmissions
- Extended drain intervals up to 300,000 miles/48 months
- Provides 12 times longer drain intervals than conventional fluids
- Improved gear protection and clutch-friction durability
- Provides shear stability during its service life
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